Resumen Objetivo: El objetivo de esta investigación fue analizar los aspectos sinantrópicos y ecológicos de las especies de muscidae en el municipio de Florencia, Caquetá, Colombia. Alcance: Promover el conocimiento de la diversidad de Muscidae en la Amazonía Andina colombiana, dada su importancia médica, forense y ecológica. Metodología: Este estudio evaluó el índice de sinantropía y aspectos ecológicos de las especies de Muscidae en Florencia, Caquetá, Colombia. El muestreo se realizó mensualmente durante seis meses, en tres hábitats (urbano, rural y bosque) utilizando trampas Van Someren-Rydon cebadas con pescado, vísceras de pollo, cebolla en descomposición y heces humanas. Se instalaron cuatro trampas (una por atrayente) en cada hábitat durante 48 horas al mes. Las muestras se recolectaron cada 12 horas. Se calculó el índice sinantrópico. Resultados: En total se recolectaron 4916 especímenes de 21 especies y ocho géneros, 11 son nuevos registros para Colombia: Chaetagenia stigmatica, Graphomya maculata, Morellia dendropanasis, Morellia hirtitibia, Morellia lopesae, Ophyra. capensis, Philornis falsificus, Philornis masoni, Philornis schildi, Philornis setinervis, Polietina flavithorax. Las especies con mayor índice sinantrópico que mostraron una fuerte preferencia por los asentamientos humanos fueron Morellia violacea, M. basalis, M. dendropanasis y Ophyra capensis. Las especies más abundantes fueron Biopyrellia bipuncta, Cyrtoneuropsis gemina and M. violacea, las tres mostraron preferencia por los asentamientos humanos. Conclusiones: Estos resultados sugieren que estas especies pueden usarse como indicadores ecológicos de perturbación en los bosques húmedos de Colombia.

Abstract Objective: The objective of this research was to analyze the synanthropic and ecological aspects of the Muscidae species in the municipality of Florencia, Caquetá, Colombia. Scope: Promote knowledge of the diversity of Muscidae in the Colombian Andean Amazon, given their medical, forensic, and ecological importance. Methodology: Sampling was conducted monthly over six months, in three habitats (urban, rural, and forest) using Van Someren-Rydon traps baited with fish, chicken viscera, decomposing onion, and human feces. Four traps (one per bait) were installed in each habitat for 48 hours each month. Samples were collected every 12 hours. Results: The synanthropic index was calculated. A total of 4,916 specimens from 21 species and eight genera were collected, 11 of them are new records in Colombia: Chaetagenia stigmatica, Graphomya maculata, Morellia dendropanasis, Morellia hirtitibia, Morellia lopesae, Ophyra capensis, Philornis falsificus, Philornis masoni, Philornis schildi, Philornis setinervis, Polietina flavithorax. The species with the highest synanthropic index that showed strong preference for dense human settlements were Morellia violacea, M. basalis, M. dendropanasis, and Ophyra capensis. The most abundant species were Biopyrellia bipuncta, Cyrtoneuropsis gemina and M. violacea, all three evidenced a preference for human settlements. Conclusions: These results suggest that certain species can be used as ecological indicators of disturbance in humid forests in Colombia.

ABSTRACT We present the first report of Nasutitermes guayanae feeding on human bone remains found in an urban area of the municipality of Florencia, Caquetá, Colombia, in the Colombian Amazon piedmont. The record indicates an expansion in the diet of these termites. The observation suggests that the association of N. guayanae with decomposing bodies may be a possible tool for the estimation of postmortem intervals.

RESUMEN Presentamos el primer reporte de Nasutitermes guayanae alimentándose de restos óseos humanos encontrados en un área urbana del município de Florencia, Caquetá, Colombia, en el Piedemonte Amazónico colombiano. El registro indica una expasión en la dieta de esas térmitas. La observación sugiere que la asociación de N. guayanae con cuerpos en descomposición puede ser una posible herramienta para la estimación de intervalos postmortem.

Resumen Objetivo. Determinar la distribución altitudinal de Calliphoridae (Diptera) en la vertiente oriental de la Cordillera Oriental en la Amazonía Andina, Colombia. Alcance. Promover el conocimiento de la diversidad de Calliphoridae en la Amazonia Andina colombiana, los cuales pueden ser utilizadas como indicadores forenses en esta region del país. Metodología. El estudio se realizó en un gradiente altitudinal de 250 a 2500 metros. Durante marzo, abril y junio (temporada alta de lluvias) y septiembre, noviembre y diciembre (temporada baja de lluvias), se utilizaron trampas Van Someren-Rydon cebadas con pescado en descomposición. Resultados. Se recolectaron un total de 4.437 especímenes de Calliphoridae, distribuidos en nueve géneros y 14 especies, las especies más abundantes fueron Chloroprocta idioidea (Robineau-Desvoidy), Chrysomya albiceps (Wiedemann) y Cochliomyia macellaria (Fabricius). Una prueba de ANOVA con post-hoc de Tukey HSD mostró que las dos temporadas y las cinco estaciones de muestreo no fueron estadísticamente diferentes. Se utilizaron curvas de acumulación de especies para medir el esfuerzo de muestreo y se utilizó una curva de rarefacción basada en el número de individuos para comparar la riqueza de especies entre las estaciones de muestreo. El índice de diversidad de Shannon mostró que la altitud más diversa fue Macagual a 250 metros (H = 2,39) y el índice de Simpson mostró que la localidad con mayor dominancia fue Los Lirios a 1.400 metros (D = 1,33). Las especies mostraron una distribución de rango altitudinal específica basada en los resultados de un Análisis de Correspondencia Factorial y agrupación de rango de altitud mediante análisis de conglomerados. Conclusiones. Los resultados mostraron que la distribución y diversidad de las especies de Calliphoridae en la vertiente oriental de la Cordillera Oriental en la Amazonía Andina Colombiana están fuertemente influenciadas por las condiciones climáticas.

Abstract Objetive. The objective was to determine the altitudinal distribution of Calliphoridae (Diptera) on the eastern slope of the Eastern Mountain Range in the Andean Amazon, Colombia. Scope. Promote knowledge of the diversity of Calliphoridae in the Colombian Andean Amazon, which can be used as forensic indicators in this region of the country. Methodology. The study was done in an altitudinal gradient from 250 to 2,500 meters. During March, April, and June (high rainy season) and September, November, and December (low rainy season), using Van Someren-Rydon traps baited with decomposing fish. Results. A total of 4,437 specimens of Calliphorid were collected, distributed in nine genera and 14 species; the most abundant species were Chloroprocta idioidea (Robineau-Desvoidy), Chrysomya albiceps (Wiedemann), and Cochliomyia macellaria (Fabricius). ANOVA with a post-hoc Tukey HSD test showed that the two sampling seasons and the five sampling stations were not statistically different. Species accumulation curves were used to measure sampling effort and a rarefaction curve based on the number of specimens was used to compare species richness between sampling stations. Shannon diversity index showed that the most diverse altitude was Macagual at 250 meters (H = 2.39), and the Simpson index showed that the locality with the highest dominance was Los Lirios at 1400 meters (D = 1.33). Species showed specific altitudinal range distribution based on the results from a Factorial Correspondence Analysis and on an altitude range grouping using cluster analysis. Conclusions. The results showed that the distribution and diversity of the Calliphoridae species the eastern slope of the Eastern Mountain Range in the Colombian Andean Amazon are strongly influenced by weather conditions.

RESUMO Blepharicnema splendens é um dipetero de ocorrência restrita às florestas montanhosas dos Andes neotropicais de 1400 até 2500 m acima do nível do mar. Amostramos a espécie utilizando armadilhas Van Someren-Rydon, com peixe em decomposição como isca, em quatro localidades (veredas) na Cordilheira Oriental, no município de Florencia, Caquetá, Côlombia. Foram coletados 221 indivíduos nas quatro localidades. A maior abundância foi registrada na Vereda Las Brisas, com 104 espécimes (45,4%), seguido de El Vergel, 76 (33,2%), Tarqui, 46 (20,1%) e Los Lirios, 2 (0,9%). O registro dessa espécie nos ecossistemas montanhosos do Departamento de Caquetá é uma expansão da distribuição atualmente conhecida de B. splendens, e contribui ao conhecimento incipiente sobre a diversidade de dípteros nessa região.

ABSTRACT Blepharicnema splendens is a dipteran with occurrence restricted to the Neotropical Andean mountain forests from 1,400 to 2,500 masl. We surveyed the species using Van Someren-Rydon traps with decaying fish as bait in four sites (veredas) in the Eastern Cordillera, in the Municipality of Florencia, Caquetá, Colombia. A total of 221 individuals were collected in the four localities. The Vereda Las Brisas had the highest abundance, with 104 specimens (45.4%), followed by El Vergel, 76 (33.2%), Tarqui, 46 (20.1%) and Los Lirios, 2 (0.9%). The record of this species in the mountainous ecosystems of the Department of Caquetá expands the known distribution of B. splendens and adds to the incipient knowledge on the diversity of Diptera in this region.

Resumen Objetivos: Analizar la sucesión de insectos asociados a la descomposición de cuerpos en dos ecosistemas acuáticos en la Amazonia Andina. Metodología: Tres cadáveres fueron ubicados en una quebrada y tres en un lago, los muestreos se realizaron cada cinco horas desde el momento de la muerte hasta su esqueletización. Resultados: La descomposición total duró 14 días en la quebrada y 16 en el lago. Seis estadios de descomposición fueron observados: fresco sumergido; flotación temprana; flotación tardía; deterioro de la flotación; restos flotantes y restos sumergidos. En total se colectaron 1172 individuos en la quebrada y 1585 en el lago. Los gremios tróficos identificados fueron: trituradores; colectores; depredadores; necrófagos; sarcosaprófagos e incidentales. En la quebrada, los trituradores tricópteros fueron los más representativos en la etapa fresco sumergido. En el lago los trituradores, moscas de mayo y los depredadores hemípteros y odonatos fueron los más representativos en la etapa de flotación temprana. Los dípteros necrófagos y sarcosaprófagos fueron los más representativos en las etapas donde el cuerpo estuvo expuesto a la superficie en ambos ecosistemas. Conclusiones: El ISMP para ambos cadáveres fue similar en los dos hábitats, cada uno evidenció seis etapas de descomposición, lo que confirma que la descomposición en los ecosistemas acuáticos es diferente a la observada para los entornos terrestres.

Abstract Objectives: Analyze the succession of insects associated with the decomposition of bodies in two aquatic ecosystems in the Andean Amazon. Scope: Provide information on the insects associated with bodies that decompose within aquatic habitats and the duration times of each decomposition phase as a tool for the determination of the post-mortem submerged interval (PMSI). Methodology: Three carcasses were placed in a stream and three in a lake, the sampling carried out every five hours, from the moment of death to its skeletonization. Main results: Total decomposition lasted for 14 days in the stream and 16 days in the lake. Six decomposition stages were observed: submerged fresh, early floating, floating decay, bloated deterioration, floating remains and sunken remains. A total of 1172 organisms were collected on the carcasses in the stream and 1585 in the lake. Trophic relationships identified were: Shredders, collectors, predators, necrophages, sarcosaprophages and incidentals. In the stream, the caddisfly shredders were the most representative organisms in the submerged fresh stage. In the lake, the mayfly shredders, and hemipterous and odonate predators, were the most representative organisms in the early floating stage. The necrophagous and sarcosaprophagous diptera were the most representative organisms in the stages exposed to the surface in both ecosystems. Conclusions: The PMSI for both carcasses was similar in the two habitats, each showing six stages of decomposition, confirming that decomposition in lotic and lentic ecosystems is different from that observed for terrestrial environments.

RESUMO A entomologia forense é uma ferramenta frequentemente utilizada para estimar o intervalo de tempo entre a morte e a descoberta do corpo. Na área rural do município de Florencia, Caquetá, foi monitorada a sucessão de artrópodes associados à decomposição cadavérica, utilizando como modelo de estudo os cadáveres de três porcos (Sus scrofa). A amostragem de insetos e coleta de dados ambientais foram realizadas a cada cinco horas. A duração total do processo desde a morte até a esqueletização foi de 545 horas (22,7 dias). Foram coletados 30833 espécimes de insetos, distribuídos em nove ordens, 46 famílias, 95 gêneros e 106 espécies. Diptera foi o grupo mais representativo, com 23215 indivíduos (75,3%), seguido de Coleoptera, com 3711 indivíduos (12%) e Hymenoptera, com 3154 indivíduos (10,2%). Os estágios imaturos de Cochliomyia macellaria, Chrysomya albiceps, Hemilucilia semidiaphana e Ophyra aenescens foram as principais espécies envolvidas no consumo de tecidos e na aceleração do processo de decomposição. Devido à presença de formigas Cheliomyrmex sp., Camponotus sp. e Dinoponera sp. e de besouros Hister sp., Acylophorus sp. e Philonthus spp., não foi possível obter massas de ovos de Diptera suficientes para a criação de espécies colonizadoras. Nosso estudo fornece subsídios para determinar o intervalo post-mortem em investigações policiais e promover a entomologia forense em uma área rural da Amazônia Andina na Colômbia.

ABSTRACT Forensic entomology is a frequently used tool to estimate the time interval between death and the discovery of the corpse. Succession of arthropods associated with cadaveric decomposition was monitored in a rural area of the Municipality of Florencia, Department of Caquetá, Colombia. Three pigs (Sus scrofa) were used as study models. Insect sampling, and monitoring of carcasses and environmental conditions were carried out every five hours. The total time from death to skeletonization was of 545 hours (22.7 days). A total of 30833 insect individuals were collected. Specimens were distributed in nine orders, 46 families, 95 genera and 106 species. Diptera was the most abundant, with 23215 individuals (75.3%), followed by Coleoptera, with 3711 individuals (12%), and Hymenoptera, with 3154 individuals (10.2%). Immature stages of Cochliomyia macellaria, Chrysomya albiceps, Hemilucilia semidiaphana and Ophyra aenescens were the main species involved in tissue consumption and acceleration of the decomposition process. Due to the presence of ants Cheliomyrmex sp., Camponotus sp. and Dinoponera sp., and coleopterans Hister sp., Acylophorus sp. and Philonthus spp., it was not possible to obtain sufficient Diptera egg masses for rearing the colonizing species. These results can be used as a standard to determine the postmortem interval in criminal investigations in the rural area of the Andean Amazon, Caquetá, Colombia.

RESUMO Esta é a primeira aplicação da entomologia forense em um caso envolvendo um cadáver humano encontrado em uma área urbana do Município de Florencia, Caquetá, Colombia, no Piedemonte da Amazônia Colombiana. Três dias após a remoção do corpo da área, pupas e pupários foram coletados e identificados como Chrysomya albiceps (Wiedemann, 1819) (Diptera, Calliphoridae). O intervalo pós-morte (IPM) foi estimado com base em dados publicados previamente e verificado usando graus-horas acumulados (GHA) e desenvolvimento intrapuparial. O intervalo pós-morte mínimo estimado foi de 229 horas (9.5 dias).

ABSTRACT This is the first application of forensic entomology in a case involving a human corpse found in the urban area of the Municipality of Florencia, Caquetá, Colombia, in the Piedemont of the Colombian Amazon. Three days after removing the body from the scene, pupae and puparia were collected and identified as Chrysomya albiceps (Wiedemann, 1819) (Diptera, Calliphoridae). The postmortem interval was estimated on the basis of previously published data and verified through accumulated degree hours (ADH) and intrapuparial development. The estimated minimum postmortem interval was of 229 hours (9.5 days).

Resumen La familia Sphaeroceridae se asocia a una amplia variedad de hábitats antrópicos y naturales. En Colombia, este grupo ha sido pobremente estudiado, de ahí que el propósito de esta investigación fue conocer los géneros de Sphaeroceridae presentes en el ecosistema de bosque seco tropical en la Costa Caribe colombiana y algunos aspectos ecológicos en relación a su actividad horaria, preferencia de hábitat y de atrayente; para lo cual se muestrearon tres ambientes (urbano, rural y bosque), en los departamentos de Cesar, Córdoba y Magdalena, utilizando trampas van Someren Rydon cebadas con heces humanas, pescado descompuesto y fruta fermentada. En cada departamento se colocaron nueve trampas, una por atrayente y ecosistema, durante un periodo de 72 horas, realizando colectas cada 12 horas. En total se obtuvieron 147 individuos, pertenecientes a seis géneros; de los cuales Archiceroptera y Bromeloecia, son nuevos registros para Colombia.

Abstract Sphaeroceridae is associated with a wide variety of anthropogenic and natural habitats. In Colombia this group has not been studied extensively, therefore the purpose of this investigation was to determine the genera present in the tropical dry forest ecosystem in the Colombian Caribbean coast and some ecological aspects in relation to nycthemeral activity, habitat and bait preference. Three environments (urban, rural and forest), from the departments of Cesar, Cordoba and Magdalena were sampled using van Someren Rydon traps baited with human feces, decomposing fish and decomposing fruit. Nine traps were placed in each department, with one per bait and ecosystem, over a period of 72 hours,with collectiontaking place every 12 hours. In total 147 individuals belonging to six genera were obtained of which Archiceroptera and Bromeloecia are new records for Colombia.

RESUMO No mundo existem poucos estudos sobre o desenvolvimento intrapupal de Diptera. Comumente, os estudos dos ciclos de vida das espécies de moscas são feitos eliminando o desenvolvimento embrionário que é muito importante, principalmente nas espécies de interesse forense. O principal objetivo foi o de analisar o desenvolvimento intrapupal de Lucilia eximia, descrevendo as mudanças morfológicas que ocorrem durante o desenvolvimento intrapupal. Foram analisados cerca de 1.600 espécimes cultivados em laboratório. Foram analisadas as fases de pré-pupa, pupa, o início da fase adulta, a imago e a emergência. Pré-pupas foram identificadas de acordo com a redução no tamanho e na alteração da coloração. Dez espécimes foram coletados a cada três horas (n=1.000), sem interrupção, até a emergência dos adultos. As pupas foram fixadas em etanol a 96%. Em seguida foram imersas em solução Carnoy por 24 horas e ácido fórmico a 5% por 48 horas para facilitar a dissecação e análises das alterações morfológicas. Foram determinados 4 estágios de desenvolvimento intrapupal. 1) Apólise larva-pupa com duração de 23 ± 1,08 h; 2) Pupa criptocefálica: 5 ± 0,53 h; 3) Pupa fanerocefálica: 92 ± 1,94 h e; 4) Adulto farado: olhos transparentes: 125 ± 2,15 h; olhos amarelos: 23 ± 0,89 h; olhos róseos: 14 ± 0,73 h e olhos vermelhos 20 ± 0,60 h. O adulto farado estava completo após 296 horas e a emergência dos adultos ocorreu com 302 ± 3,81 h. Cada fase foi descrita e comparada com o descrito para Chrysomya albiceps (Calliphoridae).

ABSTRACT There are few studies about the intra-puparial development in Diptera, nonetheless its importance has been increased because several dipteran species are of forensic interest. Studies on the life cycles of flies often disregard the changes that occur inside the pupae. The objectives of this research were to analyze the intra-puparial development of Lucilia eximia, and to describe chronological and morphological changes that occur during this stage. Around 1.600 specimens were laboratory-reared. The pre-pupae were identified by the reduction of their size and change in coloration, and 10 individuals were sampled every three hours (n=1.000) until adult emergence. The specimens were fixed in 96% alcohol, subsequently immersed in Canoy solution for 24 hours and in formic acid (5%) for 48 hours, to facilitate dissection and analysis of the morphological changes of the individuals. Four stages of the intra-pupal development of L. eximia were observed: 1) Larva-pupa apolysis, which lasted 23 ± 1.08 h; 2) Cryptocephalic pupa, 5 ± 0.53 h; 3) Phanerocephalic pupa, 92 ± 1.94 h; and 4) Pharate adult: Transparents eyes, 125 ± 2.15 h; Yellow eyes, 23 ± 0.89 h; Pink eyes, 14 ± 0.73 h; and Red eyes, 20 ± 0.60 h. The pharate adult is completely formed after 296 hours and the emergence of the adult occurred after 302 ± 3.81 h. In addition, there were included the stage of pre-pupa, pupariation and the beginning of the adult stage, Imago and adult emergence. Each stage is described and compared with those described for Chrysomya albiceps (Calliphoridae).

ABSTRACT Sarcophaginae is the most diverse subfamily of Sarcophagidae with 51 genera and more than 1,800 species and it is widely distributed in the Neotropical Region. Sarcophaginae flies of forest, rural, and urban habitats of the seven departments comprising the Colombian Guajira biogeographic province were surveyed. Van Someren Rydon traps baited with fermented fruit, decomposing fish, and human feces were active for 72 hours with samples collected every 12 hours (day/night) between 2010 and 2014. A total of 14,223 sarcophagines (78% females and 22% males) were collected, which belong to 28 species of nine genera. Oxyvinia excisa (Lopes, 1950) is a new record for Colombia. The richest genera were Oxysarcodexia Townsend, 1917 and Peckia Robineau-Desvoidy, 1830, with eleven and nine species, respectively. Some of the species with the highest affinity to urban habitats were Oxysarcodexia bakeri (Aldrich, 1916), Oxysarcodexia aurata (Macquart, 1851), and Oxysarcodexia timida (Aldrich, 1916); to rural habitats were Oxysarcodexia diana (Lopes, 1933), Ravinia columbiana (Lopes, 1962), and Ravinia effrenata (Walker, 1861); and to forest habitats were Helicobia rapax (Walker, 1849), Oxysarcodexia avuncula (Lopes, 1933), and Oxysarcodexia major Lopes, 1946. We also discuss diet, habitat, and activity periods of the species. Species composition of Sarcophaginae in the Guajira province was very homogenous across the habitats, with the forest as the richest habitat. Scavenger habits of Sarcophaginae are confirmed, as well as their strong association with anthropic environments.

La entomología forense es una disciplina que utiliza insectos para obtener información útil en la determinación del intervalo postmortem (IPM). Las moscas de la familia Calliphoridae son muy utilizadas en entomología forense, sin embargo, su identificación a nivel de especie puede dificultarse cuando el individuo se encuentra incompleto o en estadio inmaduro. En el presente trabajo, se evaluó el potencial de la región ITS2 del genoma nuclear para la identificación de especies de Calliphoridae en Colombia utilizando tres aproximaciones: comparando distancias genéticas utilizando la metodología de códigos de barra, haciendo una reconstrucción filogenética, y con enzimas de restricción (PCR-RFLPs). Se secuenciaron un total de 520 pb en 44 individuos pertenecientes a 16 especies. Se calcularon los valores de distancia intraespecífica e interespecíficas utilizando el modelo K2P. Los valores de distancia intraespecífica oscilaron entre 0 y 0,252 %, mientras que las distancias interespecíficas fluctuaron entre 3,6 y 18,9 %, evidenciándose que esta técnica puede ser utilizada como código de barras genético en la identificación de especies de la familia Calliphoridae. Tanto en los análisis de Neighbour-Joining como en los análisis bayesianos el 90 % de los géneros presentan una monofilia sustentada en probabilidad posterior de 0,89 a 1. En todos los casos la especie Blepharicnema splendens agrupa con el género Lucilia. Con base en las secuencias obtenidas se utilizó la aplicación NEBCutter para identificar cuatro enzimas de restricción las cuales se probaron en el laboratorio y se comprobó su utilidad para la identificación rápida de especies de Calliphoridae en Colombia.

Forensic entomology is a discipline that uses insects to obtain useful information for the determination of the postmortem interval (PMI). Flies of the family Calliphoridae are extensively used for this purpose, however, the identification of these flies can be difficult when the individual is not an adult or when it is incomplete. In the present work, we tested the utility of the ITS2 region of the nuclear genome for the identification of Calliphoridae species in Colombia using three approaches: comparing genetic distances using the barcoding methodology, with a phylogenetic reconstruction, and with PCR-RFLPs. We sequenced 520 bp in 44 individuals belonging to 16 species of califorids. Intraspecific and interspecific distance values were calculated using the K2P model. The intraspecific distance values ranged between 0 and 0.252 %, while the interspecific distance values ranged between 3.6 and 18.9 %, indicating that this gene can be used as a genetic barcode for the identification of species of the Calliphoridae family. Both the Neighbour-Joining and Bayesian analyses recovered 90 % of the genera as monophyletic, with pp values between 0.89 and 1. Blepharicnema splendens was always recovered within the Lucilia genera. Based on the obtained sequences we used the NEBCutter application to identify four restriction enzymes that cut in a differential way and generated useful patterns for the identification of the species. The enzymes were successfully tested and confirmed the utility of this technique as a fast way to identify species of Calliphoridae in Colombia.

Background and Objectives. Radiotherapy is usually associated with skin complications that affect the quality of life of patients and in some cases can also affect the timing of the reconstruction. The plateletrich plasma (PRP) is an emerging therapy; is autologous, safe and economic. Current use of PRP includes: efficacy in decreasing local inflammation, enhance wound healing, treatment of skin ulcers caused by radiotherapy and its use extends to the field of aesthetic plastic surgery improving the quality of the skin.The authors made an experimental trial to analyze the use of PRP as a prophylaxis method for skin damage after radiotherapy. We analyze the benefits of PRP as a prophylaxis method for skin damage after radiotherapy using an experimental model. Methods. We conduct a double blind trial with rats. Twelve Wistar rats were used, 2 for obtaining the PRP and 10 for clinical and histological analysis. Results. Data collected from the clinical analysis showed that those areas without PRP: 8 rats presented alopecia and 7 hypopigmentation. Total alopecia was present in 60%, partial alopecia in 20%, and 20% did not present alopecia. In those areas with PRP before radiotherapy: 4 presented alopecia and 3 hypopigmentation. There were no cases of total alopecia, 60% did not present alopecia and 40% presented partial alopecia. Data collected from the histological analysis showed 100% of mild-moderate atrophy in those areas with PRP. On the other hand, 80% of moderate-severe atrophy and 20% of mildmoderate atrophy was present on those areas without PRP. Conclusions. The authors showed the benefit of PRP as a prophylaxis method for alopecia (p < 0.05) and hypopigmentation (p < 0,1) produced after radiotherapy in this experimental model.

Introducción y Objetivos. La radioterapia conlleva la aparición de complicaciones cutáneas que afectan a la calidad de vida del paciente y en algunos casos condicionan la reconstrucción. El plasma rico en plaquetas (PRP) es una terapia emergente; se trata de una sustancia autóloga, biocompatible, segura y económica. Está descrito su uso en disminución de la inflamación local, de los tiempos de curación de las heridas, en el tratamiento de lesiones por radioterapia y últimamente en el campo de la Medicina Estética mejorando la calidad de la piel. Nuestro estudio analiza el uso del PRP en la profilaxis de las lesiones cutáneas inducidas por radioterapia evaluando un modelo experimental. Material y Método. Realizamos un ensayo clínico controlado, doble ciego, en animales: 12 ratas Wistar, 2 para la obtención del PRP y 10 para el análisis clínico e histológico. Resultados. Del análisis clínico destacamos que de los sectores sin PRP previo a la radioterapia: 8 ratas presentaron alopecia y 7 hipopigmentación. La alopecia fue total en un 60%, parcial en 20% y un 20% no presentó alopecia. En los sectores con PRP: 4 presentaron alopecia y 3 hipopigmentación. La alopecia fue parcial en un 40%, un 60% no presentó alopecia y no hubo casos de alopecia total. Los resultados del análisis histológico demostraron un 100% de atrofia leve-moderada para los sectores con PRP. Por contrapartida, los sectores sin PRP presentaron 80% de atrofia moderada-severa y un 20% de atrofia leve-moderada. Conclusiones. Existe un beneficio en el uso del PRP como profilaxis de la alopecia (p < 0.05) e hipopigmentación (p < 0.1) inducido por radioterapia en un modelo experimental.

Review of Thompsoniella Guimarães with description of a new species from Colombia (Diptera, Calliphoridae, Mesembrinellinae). The Mesembrinellinae (Diptera, Calliphoridae) are exclusively Neotropical with nine genera comprising 36 recognized species, including the genus Thompsoniella Guimarães with a single species, T. anomala Guimarães. We describe a new species, Thompsoniella andina sp. nov., from the Departments of Antioquia and Caldas, Colombia (Cordillera Central of the Andes, between 2600 - 2700 m) and redescribe T. anomala. A key to the nine genera of Mesembrinellinae and a key to the males of the two species of Thompsoniella are provided. Color photographs to illustrate the two species of Thompsoniella and drawings of the male genitalia of both species are also provided. Here we record Thompsoniella for the first time in Colombia.

Preliminary study of insects associated to indoor body decay in Colombia. This is the first report studying insects associated to indoor body decay process of a white pig (Sus scrofa) (Artiodactyla, Suidae) in a controlled indoor environment in an urban area of Florencia city, Amazonia Piedmont, Colombia. For a period of 54 days, 9,220 individuals (immature and adults), distributed in 3 orders, 5 families, 10 genera, and 10 species were collected using entomological nets and tweezers. Five decaying stages are described (fresh, bloated, active decay, advanced decay and remains). During the fresh stage we recorded Cochliomyia macellaria (Fabricius, 1775), Chrysomya albiceps (Wiedemann, 1819), Ophyra aenescens (Wiedemann, 1830), Oxysarcodexia sp., Lepidodexia sp. and Lasiophanes sp.; during the bloating stage C. macellaria, C. albiceps, Lucilia eximia (Wiedemann, 1819), Hemilucillia semidiaphana (Rondani, 1850), Musca domestica Linnaeus, 1758, O. aenescens, Oxysarcodexia sp., Lepidodexia sp., Dermestes maculatus De Geer, 1774 and Lasiphanes sp.; during the active decay C. macellaria, C. albiceps, L. eximia, M. domestica, O. aenescens, Lepidodexia sp. D. maculatus and Lasiophanes sp.; during the advanced decay C. macellaria, C. albiceps, M. domestica, Lepidodexia sp. and Lasiophanes sp.; and during the remains stage C. albiceps, D. maculatus and Lasiophanes sp. The insects were sorted out in 3 ecological categories; necrophagous, predators and parasites and sarco-saprophagous. According to Chao and Jack estimators, total richness was observed on day 20, with 100% of the expected species.

Reconociendo la importancia de la correcta identificación de los insectos asociados a los cuerpos cadavéricos para estimar el intervalo postmortem de una forma efectiva; teniendo en cuenta la incidencia de las moscas de la familia Calliphoridae en cadáveres y la dificultad existente para su determinación taxonómica de los estadios inmaduros, se evaluó la utilidad de la secuencia del gen mitocondrial COI como herramienta de diagnóstico molecular para la identificación de califóridos de importancia forense en Colombia. Se utilizaron secuencias de muestras colectadas en Colombia y otras tomadas de Genbank. Se realizaron análisis de divergencia de nucleótidos y análisis de "neighbour-joining", con base en las distancias genéticas calculadas con el modelo K2P. Se realizaron análisis bayesianos y se desarrolló una representación gráfica de la variación del fragmento de COI para cada especie. Se obtuvieron fragmentos de 545 pb; los valores de distancia intra-especifica, cuando se incluyen todas las especies secuenciadas, oscilaron entre 0% y 2,904% y los de distancia inter-especifica entre 0,188% y 18,07%, observándose un solapamiento de distancias, ocasionado principalmente por la inclusión de especies con solo una secuencia. Al excluir las especies con una sola secuencia y tratar a L. eximia como dos subgrupos, se logró observar un gap de distancias de 2,292%, el cual es un valor óptimo para la validación de esta técnica. Se observaron monofilias recíprocamente específicas en la mayoría de las especies, concluyendo que el gen COI es un buen marcador para delinear especies de la familia Calliphoridae en Colombia.

Recognizing the importance of the correct identification of insects associated with deceased bodies for an effective estimation of time of death, and taking into account the incidence of flies of the family Calliphoridae in corpses and the difficulty of their taxonomic determination, we evaluated the usefulness of COI mitochondrial gene sequences as a molecular diagnostic tool for identifying forensically important calliphorids in Colombia. Sequences obtained from samples collected in different regions of Colombia and other sequences taken from Genbank were used. Based on the genetic distances calculated using the K2P model, nucleotide divergence and neighbour-joining analyses were performed. Bayesian analyses were also developed and a graphical representation of the variation of the COI fragments for each species. A total 545 pb fragments were obtained; the values of intraspecific distance when all sequenced were included, ranged between 0% and 2.904% and the interspecific distance ranged between 0.188% and 18.07%, with an overlapping distance, caused mostly by the inclusion of species with only one sequence. When we excluded species with a single sequence and L. eximia was analyzed as two subgroups, a distance gap of2.292% was obtained, which is an optimal value for the validation of this technique. Reciprocal monophyly was observed in most species. We conclude that the COI gene is a good marker for delineating species of the family Calliphoridae in Colombia.