The Hemiptera of urban environments in Jujuy are little known and quite unexplored. The objective of this work was to analyze and characterize the Hemiptera diversity in trees of public roads in Jujuy, and to provide data about their bioecology. The study was conducted in three locations during a dry and a wet season; two environments were considered for each location: urban and suburban. In each site, three trees of Handroantus impetiginosus, Enterolobium contortisiliquum and Citrus aurantium were sampled. The foliage was aspirated and 10 branches/tree were randomly extracted. We identified the hemipterans and compared the abundance, richness, diversity, composition and dominance of each suborder according to the tree species, localities, seasonality and degree of urbanization. We collected 4339 individuals belonging to the suborders Auchenorrhyncha (8 families, 30 morphospecies, 1044 individuals), Heteroptera (8 families, 20 morphospecies, 196 individuals) and Sternorrhyncha (9 families, 33 morphospecies, 3099 individuals). For the first time in Jujuy, Rhabdotalebra albinoi and Rhabdotalebra flava were recorded on E. contortisiliquum, and Rhabdotalebra flava and the genus Tingis on H. impetiginosus. San Salvador de Jujuy was the location with the highest richness (56 morphospecies, 28 exclusive), in contrast to El Carmen (39 morphospecies, 13 exclusive) and San Pedro (34 morphospecies, 11 exclusive). We recorded Heteroptera phytophages, predators and species with mixed diet. Considering locality and tree species, Sternorrhyncha was the suborder with highest richness and abundance, whereas seasonality did not affect it. The other two suborders were not affected by seasonality. Hemiptera species shared by the three tree species were Dikrella sp., Empoasca sp.2, Aleyrodidae sp.1 and Pseudococcidae sp.1. The dominant species in lapacho were Rabdotalebra flava, Rabdotalebra sp.2, Tingis sp.1 and Ceroplastes sp.1; in orange, Lephidosaphes beckii, Aphididae sp.1 and Aonidiella aurantii; in pacará, Psyllidae sp.2, Aphididae sp.1 and Empoasca sp.2.

Los Hemiptera de ambientes urbanos de Jujuy son poco conocidos y explorados. El objetivo de este trabajo fue determinar y caracterizar la diversidad de Hemiptera asociada a tres especies del arbolado público de Jujuy, y aportar datos bioecológicos que contribuyan a su conocimiento. El estudio se realizó en tres ciudades durante una estación seca y una húmeda, y para cada localidad se consideraron dos ambientes: urbano y suburbano. En cada sitio se muestrearon tres árboles de Handroantus impetiginosus, Enterolobium contortisiliquum y Citrus aurantium. Se aspiró el follaje y se extrajeron al azar 10 ramas/árbol. Se identificaron los hemípteros y se comparó la abundancia, la riqueza, la diversidad, la composición y la dominancia de cada suborden en función de las especies arbóreas, las localidades, la estacionalidad y el grado de urbanización. Colectamos 4339 individuos pertenecientes a los subórdenes Auchenorrhyncha (8 familias, 30 morfoespecies, 1044 individuos), Heteroptera (8 familias, 20 morfoespecies, 196 individuos) y Sternorrhyncha (9 familias, 33 morfoespecies, 3099 individuos). Por primera vez para Jujuy se cita a Rhabdotalebra albinoi y a Rhabdotalebra flava sobre E. contortisiliquum, y a R. flava y al género Tingis sobre H. impetiginosus. La localidad con mayor riqueza fue San Salvador de Jujuy (56 morfoespecies, 28 exclusivas), en contraste con El Carmen (39 morfoespecies, 13 exclusivas) y San Pedro (34 morfoespecies, 11 exclusivas). Registramos heterópteros fitófagos, depredadores y de dieta mixta. Sternorrhyncha fue el suborden mejor representado en riqueza y abundancia teniendo en cuenta localidad y especie arbórea, mientras que la estacionalidad no lo afectó como a Auchenorrhyncha y Heteroptera. No encontramos diferencias en abundancia entre el sector urbano y el suburbano. Las especies de hemípteros compartidas por las tres especies de árboles fueron Dikrella sp., Empoasca sp.2, Aleyrodidae sp.1 y Pseudococcidae sp.1; los dominantes en lapacho fueron Rabdotalebra flava, Rabdotalebra sp.2, Tingis sp.1 y Ceroplastes sp.1; en naranjo, Lephidosaphes beckii, Aphididae sp.1 y Aonidiella aurantii; en pacará, Psyllidae sp.2, Aphididae sp.1 y Empoasca sp.2.

The adult female of Neohydatothrips denigratus (De Santis) is redescribed, the male and immature stages (larva, prepupa and pupa) are described for the first time, and aspects of the biology of this species are made known. Descriptions of the different stages of development were made from laboratory-reared specimens on using twigs of Phaseolus vulgaris as a feeding and oviposition substrate. Neohydatothrips denigratus undergoes its life cycle on the leaves of P. vulgaris, no immature stages were found in flowers or fruits. Under controlled conditions (21 ± 2ºC; 80 ± 4% RH; photophase: 12h), this species needed 21.6 ± 1.60 d to complete development (egg: 7.0 ± 1.00 larva I: 3.7 ± 1.40; larva II: 4.2 ± 1.10; prepupa: 1.8 ± 0.70, pupa: 5 ± 1). Longevity was 6.0 ± 2.00 days and observed sex ratio was 2:1. From the sixteen plants belonging to ten families recorded as hosts to this species, larvae were found only on two species of Fabaceae and one of Solanaceae.