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 Museimi 

 Bulletin 175, plate i, 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, sHghtly curved. Genitalia; basal clasp seg- 

 ment short, greatly swollen at the basal third; dorsal pla,te 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. Scutelltnn 

 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- 

 parent; 2 1 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. Scutelltun reddish brown, postscutellum yellowish 

 brown. Abdomen dark fuscous yellowish, rather thickly clothed 

 with short, fuscous hairs. Wings hyaline, costa Hght brown; halteres 



