50*8 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 53. 



throughout, especially the hind tibia and all tarsi; tergites 1 and 2 

 black throughout, 3 largely reddish, 4 and 5 reddish with median 

 black spot, 6 reddish with black apical spot, others black. 



Male. — Very like female, but with eyes nearly parallel within, 

 malar space considerably longer, tergites slightly narrower, and hind 

 tibiae darker. 



Type-locality. — Massachusetts. 



Other locality. — Camden, New Jersey. 



Type.— Cat. No. 20252, U.S.N.M. 



Very closely allied to radiolatus Provancher, the principal distin- 

 guishing characters being those given in the table to species. Ap- 

 parently these characters are quite variable and the two species may 

 prove to be the same when a larger series of specimens is availa- 

 ble for study. The species seems to average slightly larger than 

 radiolatus. 



Described from two females and two males, the paratype female 

 from Cape May, New Jersey, and all others from Massachusetts. 

 The paratypes differ from the types principally in having the reddish 

 color of the abdomen largely replaced by blackish. 



PSEUDERIPTERNUS RADIOLATUS (Provancher). 



Podogaster radiolata Provancher, Nat. Can., vol. 7, 1875, p. 329, female. 



In the United States National Museum collection is a female 

 specimen from Long Island, designated as a homotype by Mr. A. B, 

 Gahan, who compared it with the type of Podogaster radiolata 

 Provancher. In addition to the characters given in the table to 

 species, this differs from the type of gracilipes in having the eyes 

 slightly more convergent; the diameter of the ocelli only about 

 half as long as postoceUar line; the postpetiole relatively somewhat 

 longer and the petiole shorter, the second tergite wider, the hind 

 tibiae black with their tarsi by contrast paler. In a number of males 

 from New Hampshire, Massachusetts, and Connecticut there is con- 

 sidearble variation with respect especially to the length of the malar 

 space, from about as long as in the female to about haK as long as 

 basal width of mandible, in the relative length of hind tibiae and 

 tarsi, and in the stoutness of the hind femora. The color is the same 

 and varies in the same way as in gracilipes. 



Genus DOLICHOSELEPHUS Ashmead. 



Dolichoselephus Ashmead, Bull. 1, Colo. Biol. Soc, 1890, p. 23. 



Szepligeti * considers this genus a synonym of Heterocola Foerster. 

 Such may be the case, but since the unique specimen of the genotype 

 {Dolichoselephus cocTcerelli Ashmead) differs from Szepligeti's descrip- 

 tion of Heterocola in possessing well-marked lateral fovea on the 



' Gen. Ins., fasc. 34, 1905, p. 56. 



