132 Journal Xew York Entomological Society, t^'o'- >^^ii- 



second, more slender and the fourth slightly longer than the third. Mesonotum 

 reddish brown, the submedian lines thickly haired. Scutellum and postscu- 

 tellum pale yellowish. Abdomen mostly yellowish brown, the second and third 

 segments fuscous; pleurae yellowish. Halteres yellowish basally, fuscous api- 

 cally. Coxae and femora basally yellowish, the distal portion of femora and 

 tibiae fuscous yellowish, the tarsi mostly fuscous. Genitalia ; basal clasp seg- 

 ment moderately stout ; terminal clasp segment long ; dorsal plate deeply and 

 triangularly emarginate, the lobes broadly and irregularly rounded ; ventral 

 plate long, broad, slightly dilated and broadly rounded apically. Type Cccid. 

 1336. 



Thomasia californica new species. 



The female described and tentatively referred to this genus, was 

 reared August 27, 1913, from galls on Symphoricarpos collected by 

 Prof. E. Bethel at Lake Tahoe, California, the last of July. This is 

 the first American representative of the genus to be found. 



Gall. — Length 1.5 cm., width i cm. This deformity consists of irregularly 

 thickened, partly unfolded opposite leaflets, the swelling being confined mostly 

 to the basal half of the midrib. The upper leaflets are usually affected and the 

 central shoot arrested or destroyed as a result of the infestation. 



Female. — Length 2.5 mm. Antennae extending to the third abdominal 

 segment, sparsely haired, fuscous yellowish; fourteen segments, the fifth with 

 a short stem, scarcely one-fifth the length of the cylindric basal enlargement, 

 which latter has a length two and one-half times its diameter; terminal segment 

 slightly produced and tapering shortly to an obtuse apex. Palpi; first segment 

 irregular, subquadrate, the second with a length fully three times its diameter, 

 the third one-half longer than the second, more slender, the fourth as long as 

 the third, somewhat dilated. Mesonotum yellowish brown. Scutellum and 

 postscutcllum yellowish. Abdomen yellowish salmon. Wings hyaline, the 

 third vein uniting with costa just before the apex of the wing. Halteres, coxae 

 and femora pale yellowish ; tibiae and tarsi light straw ; claws rather slender, 

 strongly curved, unidentate, the pulvilli about half the length of the claws. 

 Ovipositor as long as the body, the lobes narrowly oval and with a few coarse 

 setae. Type Cecid. a2438. 



Karschomyia viburni Felt. 



The striking male of this species, easily recognized by the trinodose 

 antennae and the enlarged and peculiar genitalia, was taken in Wash- 

 ington Park, Albany, N. Y., June i, 1906. Specimens have, sub- 

 sequently been received through TMr. Owen Bryant from Greylock 

 Mountain, Mass., and also from Mr. C. P. Alexander who captured 

 specimens of both sexes in August, 1909, in a bog swamp at Wood- 

 worth's Lake in the Adirondacks, altitude about 1.570 feet. Through 

 his efforts we have been able to associate the female with the ojipositc 

 sex. 



