140 NEW YORK STATE MUSEUM 



This light-brown male was reared September 12, 1893 from pods 

 of Yucca angustifolia received at the bureau of ento- 

 mology, United States Department of Agriculture, Washington, D. C. 



Gall. This species apparently produces no deformity, having been 

 reared from Yucca pods. 



Male. Length .75 mm. Antennae about twice the length of the 

 body, thickly haired, light brown; fourteen segments, the fifth with 

 stems each two and one-half times their diameter ; distal enlargement 

 pyriform, with a length one-fourth greater than its diameter; ter- 

 minal segment, distal enlargement with a length three times its 

 diameter, obtuse. Palpi; first segment quadrate, the second with a 

 length three times the width, the third and fourth missing. Mesono- 

 tum reddish brown. Scutellum light yellowish. Abdomen light 

 brown, rather thickly haired; genitalia fuscous. Wings with a 

 length two and one-eighth times the width, hyaline, costa dark brown. 

 Halteres yellowish transparent. Coxae and base of femora pale 

 yellowish, distal portion of femora, tibiae and tarsi light brown; 

 claws rather stout, strongly curved, the pulvilli about as long as the 

 claws. Genitalia; basal clasp segment slender; terminal clasp 

 segment long ; dorsal plate probably triangularly emarginate ; ventral 

 plate long, broadly rounded; style long. Type Cecid. 1017. 



Lestodiplosis solidaginis Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 409 



1909 Ottawa Nat., 22:248 



1918 N. Y. State Mus. Bui. 200, p. 192 



This species was reared August 20, 1907 in association with R h o - 

 palomyia albipennis Felt from a gall collected at Albany. 

 It is presumably zoophagous. 



Male. Length i mm. Antennae longer than the body, rather 

 thickly haired, the basal segment yellowish; fourteen segments, the 

 fifth with stems three and one-half and two times their diameters 

 respective^; terminal segrnent, distal enlargement cyHndric, with a 

 length about three times its diameter and tapering abruptly to a 

 narrowly rounded apex. Palpi; first segment short, stout, broadly 

 rounded, the second narrowly oval, the third a little longer, more 

 slender, the fourth as long as the third; face yellowish. Mesonotum 

 fuscous, the submedian lines darker. Scutelltmi fuscous, postscu- 

 tellum a Httle lighter. Abdomen yellowish, the second and the base 

 of the third segments reddish; membrane and pleura yellowish. 

 Wings hyaline, costa dark brown, subcosta uniting therewith at 

 the basal third; halteres yellowish. Coxae whitish transparent; 

 femora yellowish basally, darker apically; tibiae a variable fuscous; 

 tarsi with the first segment fuscous, the others lighter; claws slender, 

 slightly curved, simple, the pulvilli shorter than the claws. Geni- 

 talia; basal clasp segment slender, terminal clasp segment slender, 

 slightly swollen basally. Dorsal plate deeply and triangularly 



