l6o NEW YORK STATE MUSEUM 



and pleurae pale salmon, genitalia fuscous yellowish. Halteres 

 yellowish transparent. Legs pale yellowish, the femora dorsally 

 blackish, tibiae and tarsi progressively fuscous apically. 



Female. Length 1.75 mm. Antennae with presumably 15 

 segments, other characters about as in the male. 



Collected and reared by Dr M. T. Thompson of Clark University, 

 Worcester, Mass. from a fleshy fold or lamina near the midvein on 

 leaves of sweet fern. 



Type Cecid. 11 03, N. Y. State Museum. 



Hormomyia crataegifolia n. sp. 



Male. Length 4 mm. Antennae a little longer than the body, 

 sparsely haired, reddish brown, 14 segments. Mesonotum dark 

 brown, the submedian lines sparsely clothed with whitish hairs, a 

 few scattered hairs on the lateral borders. Scutellum dark brown, 

 with a few whitish hairs on each side, postscutellum sHghtly darker. 

 Abdomen dark red, pleurae darker. Halteres and coxae yellowish 

 red, the remainder of the legs a little paler, with the tarsi somewhat 

 whitish. 



Female. Length 4 mm. Antennae extending to the fourth 

 abdominal segment, yellowish red or reddish, sparsely haired, 14 

 segments. Colorational characters about as in the opposite sex. 



Bred from whitish, oval cocoons adhering to Crataegus leaves. 

 Larvae taken from the cockscomb gall on Crataegus. 



Type Cecid. ai362, N. Y. State Museum. 



Hormomyia needhami n. sp. 



Male. Length 6 mm. Antennae extending to the fourth 

 abdominal segment, finely haired, pale fuscous yell wish, the stems 

 semitransparent, 26 segments; face fuscous. Mesonotum yellowish, 

 the anterior and lateral margins bordered by fuscous, the latter 

 slightly produced on the median line. Scutellum and postscutellum 

 pale yellowish, the latter dark brown posteriorly. Abdomen 

 fuscous yellowish, sparsely clothed with fine hairs. Halteres 

 fuscous yellowish. Legs a variable fuscous yellowish. 



Taken by Dr James G. Needham at Lake Forest, 111., June 6, 1906. 



Type Cecid. 788, N. Y. State Museum. 



Hormomyia truncata n. sp. 



Male. Length 3 mm. Antennae nearly as long as the body, 

 thickly haired, pale yellowish, 23 segments; mouth parts fuscous 



