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Culicoides huaynacapaci, a new species from the Department of Cajamarca, Peru (Diptera, Ceratopogonidae)

Abstracts

A new species of Culicoides of the subgenus Mataemyia Vargas, Culicoides huaynacapaci Felippe-Bauer, is described and illustrated based on female and male specimens collected biting humans in Department of Cajamarca, in Peruvian Amazonia. The new species is compared with its similar congener C. albuquerquei Wirth & Blanton.

Diptera; Ceratopogonidae; Culicoides (Mataemyia) huaynacapaci; Neotropical bloodsucking midge; Peru


Uma nova espécie de Culicoides do subgênero Mataemyia Vargas, Culicoides huaynacapaci Felippe-Bauer, é descrita e ilustrada baseada em exemplares fêmeas e machos coletados picando humanos no Estado de Cajamarca, na Amazônia Peruana. A nova espécie é comparada com a espécie afim, C. albuquerquei Wirth & Blanton.

Diptera; Ceratopogonidae; Culicoides (Mataemyia) huaynacapaci; maruim neotropical; Peru


Culicoides huaynacapaci, a new species from the Department of Cajamarca, Peru (Diptera, Ceratopogonidae)

Maria L. Felippe-BauerI; Abraham G. CáceresII; Cristiane S. SilvaI; William Valderrama-BazanIII; Antero Gonzales-PerezIV; Janira M. CostaV

ILaboratório de Díptera, Instituto Oswaldo Cruz-Fiocruz, Av. Brasil 4365, 21040-900 Rio de Janeiro, RJ. (mlfbauer@ioc.fiocruz.br; cssilva@ioc.fiocruz.br)

IIDivisión de Entomologia, Instituto Nacional de Salud, Ministério de Salud and Instituto de Medicina Tropical "Daniel A. Carrión", Universidad Nacional Mayor de San Marcos, Lima, Perú. (acaceres31@hotmail.com)

IIIServicio Nacional de Sanidad Agraria, Ministério de Agricultura, Lima, Perú. (wvalderrama@senasa.gob.pe)

IVCentro de Salud Bagua Grande, Sub Región de Salud Bagua, Amazonas, Perú

VDepartamento de Zoologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ. (jcosta@globo.com)

ABSTRACT

A new species of Culicoides of the subgenus Mataemyia Vargas, Culicoides huaynacapaci Felippe-Bauer, is described and illustrated based on female and male specimens collected biting humans in Department of Cajamarca, in Peruvian Amazonia. The new species is compared with its similar congener C. albuquerquei Wirth & Blanton.

Keywords: Diptera, Ceratopogonidae, Culicoides (Mataemyia) huaynacapaci, Neotropical bloodsucking midge, Peru.

RESUMO

Uma nova espécie de Culicoides do subgênero Mataemyia Vargas, Culicoides huaynacapaci Felippe-Bauer, é descrita e ilustrada baseada em exemplares fêmeas e machos coletados picando humanos no Estado de Cajamarca, na Amazônia Peruana. A nova espécie é comparada com a espécie afim, C. albuquerquei Wirth & Blanton.

Palavras-chave: Diptera, Ceratopogonidae, Culicoides (Mataemyia) huaynacapaci, maruim neotropical, Peru.

The genus Culicoides Latreille is poorly known in Peru with only five species originally described for this country and 16 more subsequently reported. Of the 290 Neotropical species [271 are included in BORKENT & WIRTH (1997) and in BORKENT & SPINELLI (2000)] 15 belong to the subgenus Mataemyia Vargas and only C. daviesi Wirth & Blanton is recorded from Peru. The purpose of this work is to describe and illustrate a new species of this subgenus from Peru, based on female and male specimens captured biting humans.

The general terminology used is that employed in papers on Culicoides by WIRTH & BLANTON (1959, 1973, 1974) for Panama, the Amazon Basin, and the West Indies, as well as the atlas of wing photographs of Neotropical species by WIRTH et al. (1988). The terms of wing veins follow the system of the Manual of Nearctic Diptera (MAC ALPINE et al., 1981), with modifications proposed by SZADZIEWSKI (1996). All measurements are in micrometers, except those of the wings which are in millimeters.

Culicoides huaynacapaci Felippe-Bauer, sp. nov.

(Figs. 1-14)






Diagnosis. A species of the subgenus Mataemyia very similar to C. albuquerquei Wirth & Blanton, from which it can be distinguished by its larger size (wing length 1.22-1.38 mm), costal ratio (0.63-0.66) and by the presence of sensilla coeloconica on the flagellomeres 1, (5), 6-8 on female. Male genitalia with distal portion of the aedeagus slightly expanded on lateral margin, ending in a pair of direct, pointed processes with straight emargination.

Female. Wing length 1.22-1.38 (1.30, n=10) mm; breadth 0.54-0.62 (0.58, n = 10) mm.

Head. Brown. Eyes (Fig. 3) nearly contiguous, bare. Pedicel brown; flagellum (Fig. 4) pale brown, proximal 2/ 3 of flagellomeres 1-8 yellowish; lengths of flagellomeres measuring 59-48-53-59-53-59-53-53-69-69-80-85-123 µm (n = 8); antennal ratio 0.92-0.98 (0.96, n = 8); sensilla coeloconica on flagellomeres 1, (5), 6-8, double or triple on 1, single on 5, quintuple or as often triple on 6 and 7, and quintuple on 8 (Fig. 7). Palpus (Figs. 8, 10) brown; lengths of segments 21-53-64-21-27 µm (n=9); 3rd segment slightly swollen distally, with a moderately deep sensory pit on distal portion; palpal ratio 2.2-2.8 (2.4, n=9). Proboscis moderately short; P/H ratio 0.64-0.76 (0.69, n=10); mandible with 13 teeth.

Thorax. Brown; without definite pattern in slide mounted specimens. Legs mostly brown; femora with subbasal, subapical pale bands, tibiae with subbasal pale bands; hind tibia pale apically (Fig. 11); hind tibial comb (Fig. 6) with four spines, the two nearest the spur longest. Tarsi (Fig. 9) pale, tarsomeres of hind leg darkest. Wing (Fig. 1) with pattern as in photographs: cell r3 with three pale spots, two well separated poststigmatic spots, anterior one small, rounded, reaching wing margin, posterior one transverse, located beyond 2nd radial cell about halfway between it and vein M1, apical spot double, oblique, broadly reaching wing margin; cell m1 with two pale spots, distal most far from wing margin, longer than basal one; cell m2 with a double pale spot lying between medial, mediocubital forks, a pale spot at wing margin; cell cua1 with round pale spot nearly reaching wing margin; anal cell with two distal round pale spots; wing base with faint pale spot; vein M1 with faint distal pale spot; veins M2, CuA1 and CuA2 dark; macrotrichia sparce, extending from base to wing tip; 2nd radial cell with distinct lumen; costal ratio 0.63-0.66 (0.65, n=10). Halter pale.

Abdomen. Brown. Two slightly ovoid, subequal spermathecae (Fig. 5), measuring 40 by 37 µm and 45 by 37 µm, with well developed, slender necks measuring 11 µm (n=7); long, slender, sometimes inflated rudimentary 3rd spermatheca, short, round sclerotized ring also present.

Male. Similar to female with usual sexual differences. Lengths of flagellomeres 10-13 measuring 824-21-29 µm (n=2); sensilla coeloconica on flagellomeres 1, 8-10. Wing length 1.38-1.41 (1.40, n=2) mm, breadth 0.51 (n=2) mm, costal ratio 0.61-0.63 (0.62, n=2), pattern as in figure 2. Genitalia (Fig. 12): 9th sternum with shallow posteromedial excavation, ventral membrane not spiculated; 9th tergum tapering, with long, slender, subparallel, apicolateral processes, posterior margin without lobe or cleft. Gonocoxite two times longer than broad, ventral root stout without hell-like expansion, dorsal root long, slender; gonostylus tapering distally, distal portion with broad bent tip. Aedeagus (Fig. 13) with dark, pointed basal arch, extending to half of total length; basal arms moderately stout; distal portion weak, broad, slightly expanded on lateral margin, ending in a pair of direct, pointed processes with straight emargination. Parameres (Fig. 14) separate, each with dark basal knob; stem long, slender, bent near base, slightly sinuate on mid portion, without ventral lobe; apical portion tapered, abruptly bent, ventral and internally directed, with lateral fringe of fine spicules.

Distribution. Peru (Department of Cajamarca).

Types. Holotype ♀, PERU, Departamento of Cajamarca, Provincia San Ignacio, Distrito de La Coipa, Papayal Bajo, 13.II.2000, biting human during 17:00-20:00 h. Allotype ♂ and paratypes (9 ♀, 1 ♂) same data as holotype. Holotype (IOC, Dip.Cer. 440), allotype (IOC, Dip.Cer. 441) and 6 paratypes (IOC, Dip.Cer. 442-447) deposited in Instituto Oswaldo Cruz, Rio de Janeiro. Paratypes, 4♀, each in Laboratorio de Entomologia, Instituto Nacional de Salud, Ministerio de Salud, Peru; Museu Nacional de La Plata, La Plata, Argentina; Faculdade de Saúde Pública, Universidade de São Paulo and Museu Nacional, Universidade Federal do Rio de Janeiro, Brazil.

Etymology. This species is in honor of the Inca emperor Huayna Capac, which reigned from 1493 to 1525.

Discussion. C. huaynacapaci is a typical member of the subgenus Mataemyia. Regarding the aspect of the wing, it is indistinguishable from C. albuquerquei Wirth & Blanton, differing by its slightly longer wing 1.22-1.38 (1.09 in C. albuquerquei), smaller antennal ratio 0.92-0.98 (1.00 in C. albuquerquei), palpal ratio 0.64-0.76 (0.78 in C. albuquerquei), and by the presence of sensila coeloconica on flagellomeres 1, (5), 6-8 (1, 6-12 in C. albuquerquei). The wing pattern of C. huaynacapaci is also similar to that of C. dalessandroi Wirth & Barreto, but it can be distinguished by the double, well separated distal pale spot in cell r3 and by the distal pale spot of cell m1 well separated from wing margin. Also, C. huaynacapaci can be separated from both species by the male genitalia with distal portion of the aedeagus slightly expanded on lateral margin (more expanded in C. albuquerquei; without expansion, rounded in C. dalessandroi), ending in a pair of direct, pointed, lateral processes with straight emargination.

Acknowledgements. To Gustavo R. Spinelli for critical review of the manuscript. To Tiago do Nascimento da Silva for the preparation of the figures.

Recebido em fevereiro de 2007. Aceito em novembro de 2007.

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  • BORKENT, A. & WIRTH, W. W. 1997. World species of biting midges (Diptera:Ceratopogonidae). Bulletin of the American Museum of Natural History 233:1-257.
  • MACALPINE, J. F.; PETERSON, B. V.; SHEWELL, G. E.; TESKEY, H. J.; VOCKEROTH, J. R.; WOOD, D. M. eds. 1981. Manual of Nearctic Diptera Agriculture Canada. v. 1. 674p. (Monograph 27).
  • SZADZIEWSKI, R. 1996. Biting midges from Lower Cretaceous amber of Lebanon and Upper Cretaceous Siberian amber of Taimyr (Diptera: Ceratopogonidae). Studia Dipterologica 3:23-86.
  • WIRTH, W. W. & BLANTON, F. S. 1959. Biting midges of the genus Culicoides from Panama (Diptera:Heleidae). Proceedings of the United States National Museum 109:237-482.
  • ___. 1973. A review of the maruins or biting midges of the genus Culicoides (Diptera: Ceratopogonidae) in the Amazon Basin. Amazoniana 4:405-470.
  • ___. 1974. The West Indian sandflies of the genus Culicoides (Diptera: Ceratopogonidae). United States Department of Agriculture Technical Bulletin 1474:1-98.
  • WIRTH, W. W.; DYCE, A. L. & SPINELLI, G. R. 1988. An atlas of wing photographs, with a summary of the numerical characters of the Neotropical species of Culicoides (Diptera:Ceratopogonidae).

Publication Dates

  • Publication in this collection
    21 Jan 2009
  • Date of issue
    Sept 2008

History

  • Accepted
    Nov 2007
  • Received
    Feb 2007
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