Genus Ranchomyia. 585 



Sub-Family TRICHOPROSOPONINAE. 



' Theobald. 



(Hyloconopinae, Lutz; Joblotinae, Blanchard.) 



Genus RUNCHOMYIA. Theobald. 

 Binotia. Blanchard. 



Mono. Culicid. III., p. 319 (1903), Theobald; Archiv. de Parasitologic 

 VIII., p. 478 (1904), Blanchard ; Les Moust., p. 427 (1905), Blanchard ; 

 Gen. Ins., p. 38 (1905), Theobald. 



Blanchard renamed this genus, Binotia, because of Robineau- 

 Desvoidy's genus Khynchomyia (1830). The two names are quite 

 distinct and hence the original name for this genus has been 

 retained by Lutz and others. 



Runchomyia frontosa. Theobald (1903). 

 Binotia frontosa. Blanchard. 

 Mono. Culicid. III., p. 319 (1903) ; Les Moust., p. 427 (1905), Blanchard. 



$ . Head clothed with flat silvery-grey scales, dusky brown 

 behind and at the sides with dull pale bluish reflections, and in 

 some lights violet, ochreous behind with a row of dark forked 

 scales and black chaetae in front. Palpi longer than in J , 

 ochreous with brown scales, with violet reflections and numerous 

 brown bristles, dense at the apex; proboscis deep brown with 

 violet and bronzy hues as long as the whole body ; antennae 

 brown, basal segment bright testaceous, verticillate hairs longer 

 than in the $ and rather denser, but nothing like plumose ; 

 frontal process pale ochreous with a very small median rather 

 darker process. 



Thorax as in the £ , but the flat scales at the sides in front 

 are more pronounced.* Scutellum paler, almost ochreous ; 

 metanotum dark with weaker chaetae. 



Abdomen as in the ? , that is unbanded, blackish with violet 

 reflections with lateral yellow spots to some extent median but 

 extending more or less the whole length of the segments, curved 



* This character was omitted in Vol. III., p. 329. The sides of the 

 mesothorax in front in the ? have small flat pale scales forming a distinct 

 mass. 



