no. 1837. NEW SPECIES OF WASPS— ROHWER. 561 



angulate; vertex and occiput finely granular, with large irregular, 

 separated punctures which are smaller and closer in the postocellar 

 area; postocellar line equal with the ocellocular line, but distinctly 

 shorter than the ocelloccipital line; the apical antennal joints with 

 short spines at the apex beneath; scutellum and mesonotum shining, 

 with well separated, distinct punctures; the sutures separating the 

 scutellum not foveolate; mesopleurse irregularly, coarsely granular; 

 propodeum with irregular, coarser reticulations; legs normal; second 

 cubital cell narrowing above; abdomen with small indistinct punc- 

 tures. Black; mandibles and legs below femora reddish-yellow; 

 tegulse and tubercles yellow. Wings distinctly dusky; venation black 

 and pale brown. 



Nerepis, New Brunswick. One male collected August 20 by Mr. 

 A. G. Leavitt. 



Type.— Cat. No. 13739, U.S.N.M. 



Genus PASSALCECUS Shuckard. 



PASSALCECUS MELANOCRUS, new species. 



Related to P. annulatus (Say), but the scutellum is not impressed, 

 the propodeum does not have an impressed median line, and the 

 femora are black. 



Hale. — Length about 5 mm. Slender; clypeus and front closely 

 granular, vertex and occiput shining with separate, small punctures; 

 frontal line distinct; postocellar line much greater than the ocelloc- 

 ular line; antennae not spinose or dentate, the third joint distinctly 

 shorter than the fourth, apical one about one-fourth longer than the 

 preceding ; dorsulum with distinct, close punctures, with two impressed 

 foveolate lines anteriorly; scutellum sparsely punctured and not 

 impressed ; propodeum rather finely reticulate, without an impressed 

 line, upper surface of posterior face with a poorly defined fovea; 

 abdomen shining with little or no hair. Black; mandibles, except 

 margin, tubercles and base of posterior tibiae yellow; apical mar- 

 gins of flagellar joints except apical one and scape beneath whitish; 

 tegulse brownish ; four anterior tibise and tarsi reddish-yellow. Wings 

 hyaline, iridescent ; venation dark brown. 



Davis Mountains, Texas. Three males bred July 5, 1907, from ma- 

 terial collected April 12, 1907, from the galleries of Dendroctonus 

 barberi Hopkins. Notes under Bureau of Entomology number 

 "Hopk. U.S. 3904." 



Type.— Cat. No. 13740, U.S.N.M. 

 80796°— Proc . N . M . vol . 40—11 36 



