LiPHBIISAE 



ROBBER FLIES OF THE WORLD 



367 



Text-Figure 25. — Lamyra gulo Loew. 



they are stout and quite robust, attenuate but rapidly 

 swollen towards the base ; dorsally they have a medial 

 fissure. 



Distribution: Palaearctic: Lamyra pleskei Becker 

 (1913). 



Ethiopian: Lamyra gulo Loew (1851); versicolor 

 Ricardo (1925); vorax Loew (1858) [ = ?nobilw 

 Walker (1851)]. 



Genus Stiphrolamyra Engel 



Figures 225, 231, 257, 633, 1311, 1320, 1569, 1815, 2174 



Stiphrolamyra Engel, in Lindner Die Fliegen der palaearktis- 

 chen Region, vol. 4, p. 231, 1928. Type of genus: Lamyra 

 oipunctata Loew, 1S58, by original designation. 



Small to rather large flies with reduced pile and 

 usually characterized by the robust form, the long, 

 slender wings with very narrow, open, first posterior 

 cell. The end veins of the discal and fourth posterior 

 cells are in nearly the same plane but may be offset by 

 a short distance. They are distinguished from all re- 

 lated groups except Lamyra Loew and Neophoneus 



Williston by the dense tuft of bristles placed dorsally 

 in the middle of the proboscis. From Lamyra they are 

 distinguished by the distinctly short, broad form of 

 the abdomen and the much shorter hind femur and 

 tibia. From Neophoneus they are readily distin- 

 guished by the very blunt claws which they share with 

 Lamyra, besides the robust apex to the proboscis. In 

 addition, the terminalia of the female in Neophoneus 

 are quite different. Length 12 to 25 mm. 



Head, lateral aspect: The face is moderately pro- 

 duced above and a little more prominent ventrally, 

 being nearly straight in profile, the ventral extension 

 of the face is gradual and never as conspicuous as in 

 Lamyra. The eye is less than usual length, varying 

 from a little narrowed ventrally to rather markedly 

 narrowed. The central anterior area is a little flattened 

 and there is a distinct anteroventral recession on the 

 lower fourth of the eyes which may be rounded or 

 plane. Posterior eye margin plane through the middle, 

 the eye rising above the occiput dorsally. Occiput 

 comparatively short near the vertex, it remains short 

 in some species or even obliterated on the dorsal half. 

 In other species it is greatly thickened ventrally, the 



