ART. 20. ICHNEUMOX-FLIES OF TRIBE PANISCINI— CUSHMAN. 41 



J/aZe.— Essentially like female but abdomen even more slender. 

 Type-locality.— South Fork of Eagle Creek, White Mountains, 



New Mexico. 



Type.— Cat. No. 26000, U.S.N.M. 



One female and four males all taken at the type-locality by 

 C. H. T. Townsend. ^ „ ^ 



PANISCUS GEMINATUS (Say). 



^Ophion chloris Oliviek, Encyc. Method. Ina., vol. 8, 1811, p. 509. 



Ophion geminatus Say, Contrib. Maclur. Lye. Phila., vol. 1, 1828, p. 76 (LeConte 



ed., vol. 1, p. 379). 

 Paniscus geminatus Norton, Proc Ent. Soc. Phila., vol. 1, 1863, p. 364.-Cushman 

 and Gahan, Proc. Ent. Soc. Wash., vol. 23, 1921, p. 169. 

 The identity of this species is discussed in the last mentioned 

 reference above. It is the most abundant species in the East. With 

 it in the National Collection have been confused many of the new 

 species described above as well as ocellatus Viereck. 



In its typical form this is a small species not exceeding 10 mm. in 

 length, of uniform testaceous color with the vertex black, the ocelli 

 distinctly separated from the eyes, the clypeus rather long and 

 narrowly truncate, the propodeum finely transversely striate with 

 apophyses weak, the antennae and legs slender with the apical tarsal 

 joints and claws moderate, the latter with about eight large teeth m 

 the female and somewhat more densely pectinate at the apex in the 

 male than in the female. 



It is represented in the National Collection by about sixty specimens 

 of both sexes from New Hampshire to South Dakota, south to Florida 

 and Texas. It probably is generally distributed throughout the 

 United States and Canada east of the Rocky Mountains. Records 

 of its occurrence outside of this region are probably due to mis- 

 determination. 



As with several of the species this species occurs in two forms, 

 a majority of the specimens being conspicuously larger than the 

 typical form. This large form, which is the one usually referred to 

 in literature as geminatus, is described below. 



PANISCUS GEMINATUS, variety SAYI, new variety. 



Much larger than the typical form, ranging in size from 13 to 

 19 mm. in length and differing otherwise in having the ocelli con- 

 tiguous with the eyes and the propodeal apophyses stronger. 



Type-locality.— FfxWs Church, Virginia. 



Type.— Q2it. No. 26001, U.S.N.M. 



The type series consists of five specimens of each sex, all from the 

 vicinity of Washington, District of Columbia, selected from a series 

 of about seventy-five. This variety has the same distribution as 

 the typical form. 



