250 NEW YORK STATE MUSEUM 



Gall. It is a rather firm greenish or reddish subglobular budlike 

 enlargement about 2 mm in diameter and usually with a slight apical 

 protuberance. See plate 15, figure 2, and also New York Museum 

 Bulletin 175, plate 1, figure 2, for a colored illustration. 



Male. Length 2.5 mm. Antennae as long as the body, sparsely 

 white-haired, fuscous yellowish, some of the terminal segments 

 reddish; 18 to 20 segments, the fifth with a stem as long as the 

 basal enlargement; terminal segment reduced. Palpi; small, com- 

 posed of a rather long, large basal segment and a little longer distal 

 one. Mesonotum reddish brown, submedian lines yellowish, broad, 

 rather thickly haired. Scutellum and postscutellum yellowish red. 

 Abdomen yellowish red, thickly haired, basal segment somewhat 

 fuscous ; genitalia reddish ; halteres yellowish basally , fuscous apically . 

 Coxae fuscous yellowish, femora, tibiae and tarsi mostly variable 

 reddish; claws stout, slightly curved. Genitalia; basal clasp seg- 

 ment short, greatly swollen at the basal third; dorsal plate broad, 

 deeply emarginate; ventral plate broad, acutely rounded. Harpes 

 stout, convolute, a quadrate, subapical spur. 



Female. Length 2.5 mm. Antennae extending to the base of 

 the abdomen, thickly white-haired, pale yellowish, reddish fuscous 

 basally; 18 segments, the fifth twice as long as its diameter, the 

 two distal segments frequently fused. Palpi; the first segment 

 long, slightly expanded distally, second about equal to the first, 

 swollen basally, tapering; face reddish fuscous. Mesonotum pale 

 brownish yellow, submedian lines sparsely black-haired. Scutellum 

 pale yellowish red, postscutellum fuscous yellowish. Abdomen 

 dark carmine, the dorsum of the posterior segments yellowish; 

 terminal segments pale salmon. Wings (Plate 17, figure 4) hyaline, 

 costa dark brown ; femora and tibiae dark fuscous ; tarsi black ; claws 

 heavy, strongly curved. Ovipositor nearly as long as the body, the 

 terminal lobes rather broad, rounded. Type Cecid. ai6o5- 



Rhopalomyia apicata Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 364 



This species was taken in a trap lantern at Nassau, N. Y., July 7, 

 1906. 



Male. Length 2.5 mm. Antennae about as long as the body, 

 thickly haired, dark brown, basally fuscous, the stems semitrans- 

 parcnt; 21 segments, the fifth with a stem as long as the basal enlarge- 

 ment, which latter has a length one-half greater than its diameter; 

 terminal segment produced, tapering to an acute apex. Palpi; 

 the first segment rather slender, with a Length about two and one- 

 half times its diameter, the second a little longer, acute distally; 

 face fuscous. Mesonotum dark brown, the submedian lines yellow- 

 ish, indistinct. Scutellum reddish brown, postscutellum yellowish 

 brown. Abdomen dark fuscous yellowish, rather thickly elothed 



wiih short, fuscous hairs. Wings hyaline, costa light brown; halteres 



