io6 



NEW YORK STATE MUSEUM 



Stout, the loops short, broad; terminal segment produced, taperinp 

 narrowly rounded. Palpi; first segment short, stout, second one- 

 half longer, slender, the third broadly oval, the fourth a little longer 

 tapermg distally. Mesonotum shining yellowish brown, the sub- 

 median hnes thickly haired. Scutellum dark reddish brown post- 

 scutellum reddish orange. Abdomen dark red, somewhat fuscous 

 basally and laterally, the segments sparsely margined with fuscous 

 hairs. Genitalia fuscous yellowish. Wings hyaline, costa yellowish 

 brown. Halteres yellowish, fuscous subapically. Coxae, femora and 

 tibiae fuscous yellowish, the tarsi a little darker; claws stout strongly 

 curved, the pulvilli as long as the claws. Genitalia; basal clasp 

 segment stout; terminal clasp segment moderatelv slender; dorsal 

 plate short, deeply and triangularly emarginate, the lobes broadly 

 rounded; ventral plate broad, very broadly emarginate, the lobes 

 broadly rounded. 



Female. Length 1.75 mm. Antennae extending to the second 

 abdominal segment, sparsely haired, pale yellowish carmine apically 

 fourteen segments, the fifth with a length two and one-half times 

 Its diameter; rather high circumfila at the basal third and apically 

 terminal segment slightly reduced, tapering, narrowly rounded.' 

 Palpi ; first segment short, stout, the second broadly oval, the third 

 a little longer, more slender, the fourth twice the length of the third 

 Mesonotum shining dark brown, the submedian lines thickly haired. 

 Scutellum fuscous yellowish, postscutellum yellowish. Abdomen 

 yellowish orange, the basal segments reddish; ovipositor yellowish 

 transparent. Halteres pale yellowish. Coxae, femora and tibiae 

 mostly pale straw, the tarsi a variable fuscous yellowish; claws 

 rather slender, evenly curved, pulvilli as long as the claws.' Ovi- 

 positor short, terminal lobes protuberant, triangular. Cecid. ai945. 



Caryomyia thompsoni Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 388 (Hormomyia) 

 191 8 N. Y. State Mus. Bui. 200, p. 7 



This species was first reared by the late Dr M. T. Thompson, 

 who apparently obtained it from a gall which he described as yellow^ 

 green or broAvn, melon-shaped, with a depressed center and either 

 smooth with sparse, short, whitish hairs or quite pubescent. Subse- 

 quent rearings in the spring of 1908 enabled us to obtain in some 

 numbers apparently the same insect from a peculiar small, globular, 

 long-haired, thin-walled gall taken the preceding fall in the vicinity 

 of New York City and which is probably the same as Thompson's 

 very pubescent gall. Apparently the same gall was taken by L. H. 

 Weld at Ithaca, N. Y., and at Evanston, 111., judging from the 

 photograph received. The original characterization of this species 

 was drafted from an alcoholic specimen. The later descriptions are 

 from recently reared material. The insects winter in the gall and 



