REPORT OF THE STATE ENTOMOLOGIST I914 211 



segment narrowly oval, with a length nearly three times its diameter. 

 Ovipositor about half the length of the abdomen; terminal lobes small, 

 narrowly oval. Type Cecid. 919. 



Phytophaga latipennis Felt 

 1908 Felt, E, P. N. Y. State Mus. Bui. 124, p. 353 (Rhabdophaga) ■ 

 Several specimens of this yellowish brown species were reared 

 from inconspicuous, knotted galls on willow, probably the glaucus 

 willow, presrmiably in the spring of 1905 or 1906 by Dr James G. 

 Needham, then of Lake Forest, 111. 



Gall. This is an inconspicuous, knotted growth on willow. 



Male. Length 2 mm. Antennae a little shorter than the body; 

 16 segments, the fifth with a stem three-fourths as long as the basal 

 enlargement, which latter has a length twice its diameter; terminal 

 segment slender, greatly produced, with a length four times its 

 diameter. Palpi; first segment irregularly subquadrate, the second 

 subrectangular, with a length three times its diameter, the third 

 and fourth subequal, each about one-half longer than the second. 

 Wings hyaline, the posterior margin distinctly produced to form a 

 rather broadly rounded lobe. Genitalia; basal clasp segment long, 

 stout; terminal clasp segment long, stout at base; dorsal plate long, 

 broad, triangularly incised; ventral plate long, broad, broadly and 

 angularly emarginate. Harpes stout, broadly rounded, with several 

 irregular, conspicuous, chitinous processes. Color and other char- 

 acters presumably nearly as in the female. 



Female. Length 4 mm. Antennae extending to the fourth 

 abdominal segment, sparsely haired, light brown; 15 segments, 

 the fifth with a length two and one-half times its diameter, the 

 terminal segment greatly produced, evidently composed of two closely 

 fused. Palpi; nearly as in the male, except that the subequal third 

 and fourth segments are relatively shorter. Mesonotum fuscous 

 brown, the submedian lines indistinct. Scutellum fuscous, post- 

 scutellum probably the same. Abdomen yellowish brown. Wings 

 hyaline, the third vein uniting with the margin a little before the 

 apex, the anal angle less produced than in the male. Halteres 

 yellowish basally, slightly fuscous apically. Legs a variable fuscous 

 yellowish; claws stout, strongly curved, simple, the pulvilli nearly 

 as long as the claws. Ovipositor about one-half the length of the 

 abdomen, the terminal lobes with a length three times the width, 

 narrowly rounded. Type Cecid. 782. 



Phytophaga americana Felt 

 1908 Felt, E. P, N. Y. State Mus. Bui. 124, p. 370, 371 (Mayetiola) 

 This species was reared in some numbers from a very elongate- 

 slender, swelling on willow twigs, Salix, received at the Bureau of 

 Entomology, Washington, D, C-, in May 1889 from 0. S. Westcott 

 of Maywood, 111. 



