DASTPOGONINAE 



ROBBER FLIES OF THE WORLD 



257 



Text-Figure 16. — A species of Lagodias Loew. 



middle vein ; anterior crossvein at the basal third of the 

 discal cell. Alula moderately wide; ambient vein 

 complete. 



Abdomen: The abdomen is unusually long and 

 slender, subcylindrical, gently clavate and as long as 

 the wing. In profile the second segment is concave 

 dorsally, with a single, medial basal bulla; the third 

 segment is slightly concave basally. The second tergite 

 and to some extent the next three are considerably 

 lengthened. Pile of the abdomen very scanty, minute 

 and appressed and almost wanting, longer only later- 

 ally and terminally on the seventh segment. Sides of 

 the first tergite with a single, weak bristle. Males with 

 eight tergites, but the eighth is reduced to an ex- 

 tremely short, lateral lip on the left side, the seventh 

 is nearly as long as the sixth. Male terminalia rotate 

 one-half; the epandrium is in ventral position and 

 forms a convex, lengthened, basketlike or troughlike 

 structure in combination with the proctiger. The male 

 terminalia are quite similar to Neolaparus Williston. 

 The aedeagus is long and prominent. Females with 



acanthophorites and 5 pairs of long, sharp spine. 

 Ventral plate long, the apex produced and with a deep, 

 divergent, medial notch. 



Distribution : Ethiopian : Lagodias albidlpennis 

 Loew (185S) ; inermis Herman (1907) ; faustus 

 Karsch (1886); laticornis Loew (1859); teratodes 

 Hermann (1906). 



Genus Nicocles Jaennicke 

 Figtjees 142, 572, 1139, 1148, 2014 



Pygostylus Loew, Berliner Ent. Zeitschr., vol. 10, p. 16, 1866. 



Type of genus: Dasypogon politus Say, 1823, as Pygostylus 



argentifer Loew, 1866, by monotypy. Preoccupied by 



Hynienoptera, 1833. 

 Nicocles Jaennicke, Abhandl. Senekenberg. naturf. Ges., vol. 6, 



p. 355, 1867. Type of genus: Nicocles analis Jaennicke, 



1867, by monotypy. 



Small flies, characterized by the moderately wide, 

 short face with reduced bristles and pile, the large, high 

 ocellarium and the rather high, arched mesonotum. 



