León ANDRÉS Pérez- Gutiérrez

Universidad del Atlántico · Ciencias biológicas

Telebasis Selys, 1865 is a genus well represented in Colombia, with 18 species distributed throughout the territory, one of them being endemic to the country. One of the most underexplored biogeographic regions of the country is the Chocó, where we found the two new endemic species of Telebasis here described, Telebasis blasi sp. nov. and Telebasis...

A field trip to collect Odonata was carried out in Southern Serranía de Chiribiquete National Natural Park, Araracuara Region, Colombia. A total of 40 species were collected, of which 17 are new records for the country: Hetaerina charca, Epipleoneura spatulata, Metaleptobasis gibbosa, Neoneura desana, N. luzmarina, N. fulvicollis, N. joana, Phoenic...

Pseudotepuibasis gen. nov. is erected for P. garrisoni sp. nov. from the Colombian Amazon (December 2015, Caquetá Department, Solano Municipality, Araracuara, Guacamayo Guard,-72.2497,-0.6308, L. Pérez leg.). Male and female of this new genus are described and illustrated, cerci of male with a ventrobasal spur for which it is considered in the trib...

A new monobasic genus Dactylobasis is erected for D. demarmelsi sp. nov. (Holotype male, COLOMBIA, Chocó Department, Salero 05°19'01" N 76°36'52" W, alt. 129m, 10 VIII 2005. L. A. Pérez leg. UARC), is described and illustrated. The new genus is considered a member of the Teinobasini by the presence of an articulated ventral spur at the base of cerc...

The large genus Heteragrion has a wide distribution in the Neotropics from southern Mexico to northern Argentina, occurring from sea level to 1800 m.a.s.l. In Colombia, so far ten species and two subspecies of the genus Heteragrion have been found; here we raise this number to 14, with three new records for the country (H. angustipenne Selys, 1886,...

The new sp. is described and illustrated from the adults of both sexes. Holotype ♂ : Colombia, Chocó dept., Salero alt. 129ma.s.l., 10-VIII-2005. A. chocoanus sp. n. shows the following character combination: cercus with well developed medial tooth in basal third, distal portion of cercus elongate, curved inward and sharply pointed, paraproct vesti...

Detailed descriptions and illustrations are provided of the ultimate instar larvae of Argia medullaris and Argia variegata from Colombia. The principal features are outlined and compared with other species. Argia medullaris differs from other species of the genus by the parallel width of the lateral gills and prominent ligula; the A. variegata larv...

The checklist includes 335 spp., of which 98 spp. are added to the latest figure published, while 21 previously listed spp. are removed from the list since they were based on unverifiable records. The number of spp. hitherto known from Colombia is low if compared to that from some other S American countries, such as Brazil (660 spp.), Venezuela (48...

Heteropodagrion croizati sp. nov. is described and illustrated on the basis of two males and one female (holotype ♂: Colombia, Putumayo Dept., Mocoa, PNN Churumbelos (1° 09′40.93′′ N 76° 39′49.13′′ W) alt. 1000m, 28 i 2010. The new species is characterized by male paraproct surpassing length of cercus, genital ligula distally bilobulate, trumpet-sh...

Adult female and ultimate stadium larva of Mesagrion leucorrhinum are formally described and illustrated based on material from three locations in Antioquia, Meta and Cundinamarca Departments, Colombia. The species is sexually dimorphic. The female is distinguishable from other related genera by a pair of notches in the prothoracic anterior lobe an...

Under stable laboratory conditions larval stages were measured and morphologically compared in order to establish growth ratio and total number of instars through their postembryonic development. Head width, total length, metafemur length, forewing pad length, and length and width of prementum were measured to determine vari-ation between instars,...

The last instar larvae are described and illustrated. They are diagnosed against the congeners on the basis of published descriptions. The principal diagnostic features are found in caudal gills, cerci and protuberances of occipital lobes. A key to the known Teinopodagrion larvae is provided.