A new stalk-eyed species of Batrachophthalmum Hendel (Diptera, Richardiidae) from Colombia Author De, Claudio J. B. Author Wolff, Marta Author Wendt, Lisiane D. text Zootaxa 2011 2932 41 46 journal article 46536 10.5281/zenodo.278067 6769e4a2-f64d-4523-a2b8-6e258be6397f 1175-5326 278067 Key to Richardiidae genera and species with stalked eyes 1. Hind femur conspicuously more swollen than other femora. Fore femur with or without weak spines on ventral surface; if spines present, always weaker than spines of mid and hind femora. Male: when present, stalk-eyed species with head width less than body length ( Richardia Robineau-Desvoidy )......................................................... 2 -. Hind femur not strongly swollen, similar in shape to other femora. Fore femur always with spines stronger than spines on mid and hind femora. Male: when present, stalk-eyed species with head width greater than the body length.................. 3 2. Wing brown with posterior region yellowish, without defined spots. Abdomen yellow or light brown............................................................................................ Richardia telescopica Gerstaecker -. Wing hyaline with a medial transversal and apical brown spots. Abdomen metallic blue......... Richardia stylops Hennig 3. Vein R2+3 doubly sinuate at tip....................................... Megalothoraca Hendel ( M. teleopsis Hennig *) -. Vein R2+3 sinuous along its length ( Fig. 8 )........................................ ( Batrachophthalmum Hendel ) ... 4 4. Ocellar seta developed ( Figs. 3–4 ). Orbital seta absent ( Fig. 3 ). Two dorsocentral setae. Wing with a central, narrow and continuous median band ( Fig. 1 ). Abdomen yellowish ( Fig. 2 ). Male: eye swelled, not stalked (Calanga, Peru )................................................................................................... B. rufiventre Hendel -. Ocellar seta weak ( Fig. 9 ). Orbital seta present ( Fig. 9 ). One dorsocentral seta. Wing with a wide and discontinuous median band ( Fig. 8 ). Abdomen light brown ( Fig. 7 ). Male: eye distinctly stalked; stalk approximately 1.5 times the length of the body ( Fig. 6 ) (Risaralda, Colombia ).................................. B. quimbaya Carvalho, Wolff & Wendt , new species