1915] Fell — Neiv South American Gall Midges 1^^ 



Delphodiplosis gen. nov. 



The prolongation of the mouthparts and unidentate claws sug- 

 gests a relationship with Stomatosema Kieff., from which it may 

 be most easily separated by the smaller number of antennal seg- 

 ments. There is also no such curvature of the claws as is attrib- 

 uted to the European genus. 



Type: D. cinctipes n. sp. 



Delphodiplosis cinctipes sp. nov. 



The strikingly colored midge described below was collected 

 December 16, 1912, at Bartica, British Guiana, by Mr. H. S. Par- 

 rish and donated to the state collections by Mr. C. P. Alexander. 



Female: Length, 3 mm. Antennae nearly as long as the body, rather thickly 

 white-haired, fuscous yellowish, the stems whitish; 14 segments, the fifth with a 

 stem one-half the length of the cylindric basal enlargement, which latter has a length 

 two and one-half times its diameter; low circumfili at the basal fourth and apically 

 and a thick subapical band of long, whitish setae; terminal segment with an apical 

 fingerlike process about one-half the length of the produced basal enlargement, 

 which latter has a length fully four times its diameter. Palpi; the first segment 

 rectangular, with a length nearly three times its diameter, the second more slender, 

 with a length twice that of the first, the third a little shorter and more slender than 

 the second, and the fourth a little longer and more slender than the third. Eyes- 

 holoptic, the mouthparts produced and about half the length of the diameter of 

 the head. Mesonotum nearly smooth, shining dark brown. Scutellum and post- 

 scutellum fuscous yellowish. Abdomen mostly dark yellowish brown, the pleurae 

 yellowish. Ovipositor yellowish orange. Wings hyaline, costa especially, and the 

 membrane rather thickly clothed with narrow, dark brown scales, subcosta uniting 

 with the anterior margin near the basal third, the third vein well beyond the apex, 

 the fifth at the distal fourth, its branch near the basal third. Halteres and coxae 

 yellowish transparent, the anterior and midlegs with the femora, tibiae and first 

 and second tarsal segments mostly dark brown, the distal portion of the second 

 tarsal segment and the others yellowish brown; posterior legs with the basal two- 

 thirds of the femora and tibiae white, a narrow band of white on the tibio-tarsal 

 articulation, the second tarsal segment mostly fuscous yellowish, the other tarsal 

 segments like the anterior tarsi; claws stout, evenly curved, unidentate, the pul- 

 villi as long as the claws. Ovipositor short, when extended with a length less than 

 half that of the abdomen, the terminal lobes sparsely setose, very long, slender, 

 with a length fully sbc times the diameter, minor lobes short, less than one-fourth 

 the length of the principal lobes and thickly clothed with short, stout setae. 



Type: Cecid. 1598. 



Epihormomyia gen. nov. 



The combination of characters presented by this female are so 

 remarkable that it is assigned to a new genus, a position which 

 we believe will be amply justified when the opposite sex is known. 



