Vol. XXli] ENTOMOLOGICAL NEWS 305 



Hyperdiplosis coffeae n. sp. 



The midge described below was reared February 3, 1911, 

 from the fruits of the Liberian coffee tree, Coffea libcrica. 

 It is tentatively referred to this genus, since the claws are less 

 strongly bent, while the circumfili are more produced than in 

 other species placed in this group. 



M^ale. Length i mm. Antennae nearly twice the length of the body, 

 thickly haired, light brown : 14 segments, the fifth having the two por- 

 tions of the stem, each with a length about thrice the diameter; the 

 basal enlargement subglobose, the subbasal whorl rather thick, stout, 

 the circumfihim with loops extending to the produced distal enlarge- 

 ment, which latter has a length twice its diameter, a sparse whorl of 

 rather long setae, subbasal and subapical circumfili, the loops of the 

 latter extending to the apex of the segment; terminal segment pro- 

 duced, the basal portion of the stem with a length four times its 

 diameter, the distal enlargement subcylindric, tapering distallv and 

 with a length four times its diameter and apically a loner, finsrer-like 

 process with a length four times its diameter and subacute distallv. 

 Palpi : first segment probably subquadrate. the second slender, with a 

 length four times its diameter, the third a little longer than the second, 

 more slender; the fourth as long as the third, dilated : eves large, 

 black. Entire body a pale yellowish. Wings yellowish white, costa 

 very pale yellowish, the third vein uniting with the margin well beyond 

 the apex of the wing. Halteres whitish transparent. Legs mostly 

 a light straw, the distal tarsal segments darker; claws stout, strongly 

 bent and swollen subapically, simple, the pulvilli shorter than the 

 claws. Genitalia: basal clasp segment short, stout, obliquely truncate; 

 terminal clasp segment as long as the basal clasp segment, swollen 

 basally, curved: dorsal plate nearly as long as the ventral plate, trian- 

 gularlv incised, the lobes obliquely emarginate and sparselv setose; 

 ventral plate long, broad, very deeply and roundly emarginate, the 

 slender lobes diverging, narrowlv rounded and sparsely setose apically; 

 style long, stout, broadly rounded. 



Female. Length i mm. Antennae about as long as the body, thickly 

 haired, yellowish brown ; 14 segments, the fifth with a stem about three- 

 quarters the length of the cylindric basal enlargement, which latter 

 has a length thrice its diameter; subbasal whorl sparse, the subapical 

 band thick, the setae long and strongly curved ; terminal segment pro- 

 duced, the basal enlargement subcylindric, with a length four times its 

 diameter and apically with a long, finger-like process. Ovipositor short, 

 the terminal lobes narrowly lanceolate and sparsely setose. Other 

 characters nearly as in the male. 



Type. Cecid a2i33, N. Y. State Museum. 



