RESUMO
Entomological collections represent a key source of information about the biological heritage of a country. However, the taxonomy and knowledge of many arthropods from megadiverse countries are underrepresented in these natural history collections as is the case with several planthoppers of the suborder Auchenorrhyncha. Issidae are fulgoromorphs distributed worldwide, except the poles and Greenland. Despite this ubiquity, Colombian planthoppers remain very poorly known and studied. Our objective was to provide the first consolidated records and distributional data for Colombian Issidae. We used reports of the representative genus Thionia deposited in biological collections in Colombia. In addition, we linked voucher specimen information and Olson's life zones showing an inter-Andean valley and Eastern Andean Cordillera distribution within Colombia. Our survey of Colombian biological collections revealed 55 individuals of the genus Thionia Stål, 1859 (53 adults, 2 immatures [nymphs]), which were collected by different methods; however, many of those records may be opportunistic. This genus (and its species) needs further study, with systematic and ecological revision, as is the case with other terrestrial Colombian hemipterans. Our consolidated records represent an advance to the knowledge of Issidae (and Thionia specifically) for the Neotropics and Colombia in particular, and a baseline for further study of distributional and biogeographic patterns of the suborder Auchenorrhyncha.
Assuntos
Hemípteros , Animais , Colômbia , Meio Ambiente , Inquéritos e QuestionáriosRESUMO
RESUMEN Los cangrejos de montaña (Decapoda: Pseudothelphusidae) son considerados sensibles a diversas alteraciones antropogénicas y ambientales en los ecosistemas acuáticos. En quebradas de la región andina colombiana, que drenan varios agroecosistemas, existe poca información sobre estos organismos. Aquí se muestran los resultados de la abundancia de Hypolobocera bouvieri, en tres microcuencas altoandinas de Colombia y su relación con variables fisicoquímicas, en Villamaría, región suroccidental del departamento de Caldas. Se revisó el material depositado en la Colección Entomológica del Programa de Biología de la Universidad de Caldas (Manizales, Colombia). El oxígeno disuelto, sólidos suspendidos totales y concentración de hierro se correlacionaron negativamente con la abundancia de H. bouvieri, mientras que el tipo de sustrato mostró una correlación positiva. Nuestros resultados contribuyen al conocimiento de los cangrejos de agua dulce en quebradas altoandinas con alta actividad agrícola (cultivo de hortalizas) y aporta nueva información sobre la ecología de esta especie.
ABSTRACT Mountain crabs (Decapoda: Pseudothelphusidae) are considered sensitive to various anthropogenic and environmental alterations in aquatic ecosystems. In streams of the Colombian Andean region, which drain various agroecosystems, there is little information on these organisms. Here we show the results of the abundance of Hypolobocera bouvieri, in three high Andean microcatchments of Colombia and its relationship with physicochemical variables, in Villamaría, southwestern region of the department of Caldas. The material deposited in the Entomological Collection of the Biology Program of the University of Caldas (Manizales, Colombia) was reviewed. Dissolved oxygen, total suspended solids and iron concentration were negatively correlated with the abundance of H. bouvieri, while the type of substrate showed a positive correlation. Our results contribute to the knowledge of freshwater crabs in high Andean streams with high agricultural activity (vegetable cultivation) and provide new information on the ecology of this species.