1913] Johnson — Species of the Genus Gaurax of the Eastern United States 35 



Gaurax obscuripennis sp. nov. 



Face black, front brown, vertex ye'low, ocellar triangle and occiput black; 

 basal joints of the antennae yellowish, third joint black, arista? whitish, densely 

 pilose. Thorax yellow, with whitish hairs and a dorsa lline, broad in front and be- 

 coming gradually narrower posteriorly, humerus, a small spot in front of the wing, 

 and a large spot on the center of the pleura, black, the metanotum yellow, with a 

 black spool-shaped mark. Abdomen black. Halteres black, stems light yellow. 

 Legs light yellow, the apical third of the posterior femora black. Wings smoky, 

 the basal half forward of the fifth longitudinal vein blackish. Length, 1.5 mm. 



One specimen, Chester, Mass., August 7, 1912. Type in the 

 collection of the Boston Society of Natural History. 



Gaurax anchora Loew. 



Elachiptera dispar Williston, in Furbush and Fernald, Rept. on Gypsy Moth, 

 1896, p. 390, pi. 53, fig. 12. 



Collected by the writer at Weston, Mass., July 23, 1911. 

 Gaurax festivus Loen. 



Beverly, Mass., July 20, [Burgess] (U. S. Nat. Mus.); Auburn- 

 dale, Mass., June 12; Pottstown, Pa., August 8, (C. W. Johnson). 



In addition to the above the following species was discovered 

 among some unidentified material. 



Gaurax pseudostigma sp. nov. 



9 Face, front and antenna- yellow, ocelli and occiput black. Thorax and 

 scutellum yellow, with whitish hairs, metathorax shining, yellow, with a narrow 

 band of black below the scutellum. Abdomen yellow, with broad bands of black 

 en the posterior portion of the segments, the first narrowly interrupted. Halteres 

 and legs light yellow. Wings hyaline, with a black stigma-like spot at the end of 

 the marginal cells. Length, 1.5 mm. 



One specimen, Toronto, Ontario, Canada, July 4, 1911 (M. C. 

 Van Duzee). 



