234 PROCEEDINGS OF THE NATIONAL MUSEUM. tol. 53. 



CRATEROCERUS CALIFORNICUS, new species. 



Of the described species this new species is more closely allied to 

 fraternalis (Norton), but is easily distinguished from that species 

 by size, black prescutum, etc. 



Female. — Length, G mm. Clypeus convex, deeply, arcuately 

 emarginate apically, the lobes rather narrow, rounded apically; 

 supraclypeal foveae rather small, deep; supracl3'peal area flat; 

 median fovea deep, U-shaped, slightly breaking through crest; 

 antennal foveae large, breaking through crest; pentagonal area 

 poorly defined, trapezoidal ; postocellar area, well defined on all sides, 

 about four times as wide as the cephal-caudad length; head shining; 

 third antennal joint a trifle shorter than the fourth; thorax shining; 

 stigma broadest near base, tapering to apex; transA-erse radius re- 

 ceived slightly basad of middle of cell; third cubital cell distinctly 

 shorter than the second ; sheath stout, strongly oblique below, rounded 

 apically. Black; angles of pronotum and tegulae yellowish ; sternites 

 and legs below coxae piceous, paler at knees. Wings hyaline; vena- 

 tion dark brown, costa and stigma paler. 



Type-locality. — Eldorado County, California. Described from 

 two females collected by "W. M. Giffard, June, 1909, at an altitude 

 of 8,400 feet. 



Type.— Cut No. 19884, U.S.KM. 



Paratype in collection of Mr. Giffard. 



Suborder CLISTOGRASTER. 



Superfamily VESPOIDEA. 



The superfamily Vespoidea is here restricted to the old Diploptera 

 and is easily distinguished from the other groups placed in Vespoidea 

 by Ashmead in having the posterior margin of the pronotum above 

 and behind the anterior margin of the tegulae. 



Family MASARIDAE. 



PSEUDOMASARIS ALBIFRONS Rohwer. 



Two males collected by A. Koebele at Tucson, Arizona, June, 1900, 

 have the femora somewhat darker than in the type. 



Family EUMENIDAE. 



SYNOMORPH13S DEBILIS Saussnre. 



Two males from Tahoe, Eldorado County, collected June, 1909, 

 at an altitude of G,200 feet. 



These specimens differ slightly from eastern specimens in having 

 the dorsal aspect of the first tergite coarsely punctured, thus agreeing 

 better with Saussure's description. 



