NO. 2219. A REVISION OF THE CREMASTINI—CUSnSIAN. 51? 



ing very slightly behind middle; angle of radius very widely obtuse, 

 second abscissa sinuate. Abdomen very slender, slightly more tlian 

 twice as long as head and thorax united; petiole cylindrical, without 

 carinao or foveae, ventral margins of tergite mooting bolow and 

 inclosing stomite; postpetiole weakly striate, hardly more than half 

 as long as petiole; second tergite nearly five times as long as wide at 

 base, its sides nearly parallel, obscurely longitudinally striate, as is 

 also the base of third tergite; ovipositor only about as long as first 

 tergite. 



Black and rufous; head black, mandibles, palpi, clypeus at each 

 side, anterior and superior orbits narrowly, and scape beneath yellow, 

 malar space piceous; thorax black with upper posterior part of mcso- 

 pleura, metapleura except lower margin, and propodeum, except largo 

 basal median spot and small apical spot, rufous; scutellum, togulao, 

 and wing bases yellow; coxae black at base, testaceous at apex, as are 

 also hind trochanters, middle and hind femora, except at apex; hind 

 tibiae and tarsi, rufofuscous, rest of legs testaceous; abdomen with 

 petiole, second tergite, except at apex, and all tergites beyond fourth 

 black, otherwise rufous. 



Type-locality. — Mount Washington, Now Hampshire, 5,000-5,500 

 feet. 



Other locality. — Hanover, New Hampshire. 



Type.— Cut. No. 20253, U.S.N.M. 



Described from two females. The paratype differs from the type 

 only in having the yellows and reds slightly paler. 



CREMASTUS (CREMASTUS) LONGIVENTKIS, new species. 



Female. — Length 13 mm., antennae 7 mm., ovipositor 2 mm. 

 Head in front view subtriangular, eyes distinctly divergent, scarcely 

 as long as greatest width of face, face scarcely elevated in middle, 

 occipital carina broadly interrupted in middle, temples nearly flat, 

 strongly sloping, malar space slightly longer than basal width of 

 mandible, mandibles about two-thirds as wide at apex as at base, 

 interfoveal line about a fourth longer than foveo-ocular line, clypeus 

 subangular at apex, rather strongly convex both longitudinally and 

 in profile, slightly shorter than interfoveal line, suture nearly straight 

 between foveae; lateral ocellar, postoceUar, and ocell-ocular lines in 

 about the proportions of 1 : 2 :1 .5, the ocelli equal in size, their diameter 

 equal to the lateral ocellar line; face and clypeus finely but distinctly 

 punctate, head otherwise granular, except polished occiput. Thorax 

 strongly tapering, the propodeum sloping nearly from base and ex- 

 tending distinctly beyond middle of coxae ;pronotum strongly rugidoso- 

 punctate; mesoscutum finely, densely punctate, more strongly so in 

 position of weakly impressed notauli; mesopleura polished and 

 weakly rugulose in longitudinal impression, otherwise as well as 

 sternum densely punctate, sternauli weak: soutcllTun with distinct 



