Abstract
Ischnura mahechai sp. nov. is described and illustrated based on specimens collected at the Eastern Andean mountain range of Colômbia. The species is close to Ischnura cruzi De Marmels, 1987 but differs from it by the structure of male anal appendages and female hind prothoracic lobe. The specimens were collected on a small Andine lake at 3,600 m, the 4th altitudinal record for a resident odonate.
Highlights
Ischnura is a cosmopolitan genus of damselflies with 65 species, out of which 20 are recorded in the New World and distributed from Canada to central Chile and Argentina (GARRISON et al 2010)
The Colombian fauna has eight species (PEREZGUTIERREZ & PALACINO-RODRIGUEZ 2011) five of which inhabiting in the high altitude mountains of the Eastern Andes near Bogota, namely I. capreolus (Hagen, 1861), I. chingaza Realpe, 2010; I. cruzi De Marmels, 1987, I. cyane Realpe, 2010 & I. ramburii (Selys, 1850)
We describe a new species from the same region, collected at an elevation of 3,600 m
Summary
Ischnura is a cosmopolitan genus of damselflies with 65 species, out of which 20 are recorded in the New World and distributed from Canada to central Chile and Argentina (GARRISON et al 2010). The Colombian fauna has eight species (PEREZGUTIERREZ & PALACINO-RODRIGUEZ 2011) five of which inhabiting in the high altitude mountains of the Eastern Andes near Bogota, namely I. capreolus (Hagen, 1861), I. chingaza Realpe, 2010; I. cruzi De Marmels, 1987, I. cyane Realpe, 2010 & I. ramburii (Selys, 1850). HW pterostigma light brown (Fig. 2), surrounded by yellow, smaller than that of FW. Penis with distal segment deeply bifid (Figs 7 and 8) forming two long curved processes.
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