1918] Dipterous Genus Drapetis Meigen 205 



Eudrapetis spinipes, sp. nov. 



Length l.{) mm. Body polished black, very sparsely hairy, legs 

 luteous, hind tibise with several black spinous bristles toward its apex. 

 Front broadly V-shaped, gray pollinose, at the bottom nearly as wide 

 as the second antennal joint, eyes subcontiguous at the middle of the 

 face, lower occiput white-pruinose, cheeks broad, their greatest diameter 

 one-fifth the eye-height; palpi broad, yellowish, with a single apical 

 hair, proboscis nearly as long as the eye-height, brown; antennae black, 

 the second joint with a long seta beneath, the third joint oval, slightly 

 longer than broad, the slender subterminal arista loosely microscop- 

 ically pubescent. The very sparse and short hairs of the thorax black, 

 no dorsocentrals, two scutellars; pleura; entirely polished. Abdomen 

 shining black, its sparse hairs brown; hypopygium small, closed, 

 beneath with white hairs. Legs including the coxae and ends of the 

 tarsi entirely yellow, anterior femora with a single preapical, hind 

 femora with two preapical bristles, anterior tibiae tipped with a pair of 

 long, black spines, hind tibiae at two-thirds their length with a long 

 flexor spine, beyond which on the outside are two preapical and two 

 apical spines, all long, on the inside the short broad apical spur is strong, 

 metatarsi not setulose beneath. Halteres yellow. Wings brownish, 

 veins narrow but firm, the third and fourth veins sub]3arallel, the first 

 posterior cell widest before its apex, the second, third and fourth sections 

 of the costa proportioned 1.6 : 2.4 : 1, anterior cross-vein at two-thirds 

 the length of the second basal cell, outer sections of the fourth vein 

 proportioned 1 : 9, of the fifth vein subequal, marginal ciHa uniformly 

 short. 



Numerous specimens: Kamerun, West Africa, received from 

 Professor Roland Thaxter. 



Ctenodrapetis aristalis, sp. nov. 



cf , 9 • Length 1.4 mm. Head glistening black, thorax reddish, 

 abdomen largely or completely black, legs yellow. Front very narrow, 

 eyes contiguous below the antennae, vertical and ocellar bristles long; 

 basal joints of the antenna? short, yellow, without bristles beneath, the 

 third joint elongate, bluntly oval, thickly black-pubescent, the terminal 

 arista twice as long as the antennae, with dense black pubescence, so as 

 to appear nearly as thick as the antenna itself. Palpi white; prqboscis 

 yellow. Thorax polished reddish yellow, the scutellum and metanotum 

 brown, not pubescent, five pale dorsocentrals, the hindmost long, two 

 scutellars. Abdomen with scattered pale hairs, those of the last seg- 

 ment long, apex of the four basal segments sometimes whitish; hypo- 

 pygium longer than broad, with few hairs and with asymmetrical 

 appendages visible. Legs slender, including the coxae pale yellow, the 

 anterior tibiae and tarsi a little darker, hind tibiae with only a slight 

 apical swelling and with a single extensor bristle located at the middle, 

 anterior femora with a fine basal hair beneath and all the femora with 

 a preapical bristle on the front side. Halteres white; calypteres white 



