214 



NEW YORK STATE MUSEUM 



distal slender, slightly curved portion; face yellowish brown. 

 Mesonotum with the anterior median triangular area and posterior 

 sublateral irregular areas dark brown, the median posterior area 

 and oblique sublateral anterior areas and the lateral area bordering 

 the posterior submedian darker areas, fuscous yellowish. Scutellum 

 yellowish, postscutellum yellowish anteriorly and laterally, black on 

 the median posterior area. Abdomen semi transparent, yellowish, 

 each segment tinged with orange basally, the sixth and seventh 

 segments nearly suffused with orange, genitalia reddish brown with 

 fuscous markings. Wings (pi. 14, fig. 4) hyaline, costa pale straw 

 tinged with carmine, the third vein joining the margin well beyond 

 the apex; halteres (fig. 42) very long, slender, yellowish transparent, 

 distally fuscous yellowish. Coxae fuscous yellowish tinged with 

 reddish, femora and tibiae fuscous yellowish, tarsi slightly darker, 

 tinged with reddish; claws stout, strongly curved at the basal fourth 

 (fig. 41). Genitalia (fig. 43); basal clasp segment short, stout; 



Fig. 43 Hormomyia americana, genitalia 

 of male (enlarged, original) 

 terminal clasp segment slightly swollen at the base; dorsal plate 

 broad, deeply and broadly incised, the lobes broadly rounded; 

 ventral plate stout, broadly rounded though with a slight median 

 emargination. Type Cecid. 91. 



Hormomyia palustris Felt 



1907 Felt, E. P. New Species of Cecidomyiidae II, p. 19 



1908 N. Y. State Mus. Bui. 124, p. 300, 387 



Males of this species were captured Ma}^ 20, 1907, in considerable 

 numbers by Dr James G. Needham on the lake marsh near the 

 Limnological laboratory at Ithaca, N. Y. A close search failed to 

 disclose any females. 



