618 PROCEEDINGS OF THE NATIONAL MUSEUM. 



TOL. 53. 



well separated punctures, strongly convex, not margined; metaplcura 

 sculptured much like lower part of mesopleura; propodeum with 

 areola and petiolar area separated, the former about four-fifths as 

 long as latter and about twice as long as wide, both areas transversely 

 rugose, basal areas punctate, lateral and pleural areas rugoso- 

 punctate; legs very slender, hind basi-tarsus distinctly more than half 

 as long as tibia and about equal to next three joints united, last joint 

 hardly more than half as long as third; wings hyaline; stigma about 

 two-fifths as wide as long, radius arising slightly beyond middle, 

 second abscissa of radius sinuate; second recurrent nearly inter- 

 stitial, basal vein nearly straight, second discoidal cell about two- 

 fifths as wide at base as at apex, nervulus interstitial, nervellus 

 slightly antefurcal, hardly broken. Abdomen strongly impressed 

 beyond second segment, slightly more than twice as long as head and 

 thorax, petiole cyhndrical, without carinae or foveae, much longer 

 than postpetiole, and with the sternite inclosed by the tergite; second 

 tergitc about six times as long as wide at base, parallel-sided, longi- 

 tudinally aciculate, its spiracles in the middle; ovipositor slighSy 

 shorter than first tergite. 



Rufo-testaceous with lighter and darker markings as follows: 

 Orbits, clypeus, mandibles, palpi, scape below, lower edge of pro- 

 notum, notauh, scutellum, coxae at apex, trochanters abov'e, a broad 

 longitudinal band on mesopleura, tegidae, wing bases various shades 

 of yellow, darker on thorax; antennae, facial tubercle, occiput, 

 ©cellar triangle, area between scutellum and wings, postscutellum,' 

 large triangular spot in basal middle of propodeum and reaching apex 

 of areola, sternauli, petiole at base, second tergite except at^'apex, 

 third at base, fifth in dorsal middle, and others entirely, hind tro- 

 chanters at base, and hind tibiae above, black or infuscated. 

 Type-locality. — Vienna, Virginia. 

 Other ZoraZit'^/.— Wellesley, ^lassachusetts. 

 Type.— -Cat. No. 20254, U.S.N.M. 



Described from two females, the type taken by Mr. W. F. Turner, 

 May 12, 1915, and the paratype captured June 24, 1892. Except for 

 its slightly paler color, especially in the legs, the paratype is like the 

 type. 



CREMASTUS (CREMASTUS) RUFICEPS. new species. 



FemaU.—Lmgih. 10.5 mm., antennae 6.5 mm., ovipositor 4 mm. 

 Closely related to longivenirls Cushman from which it differs as 

 follows: Malar space barely as long as basal width of mandibles, 

 which are somewhat broader relatively at apex; face more strongly 

 elevated in middle; interfoveal line nearly a half longer than foveo- 

 ocular line: clypeus only about two-thirds as long as interfoveal line; 

 lateral ocellar, postocellar, and ocell-ocular lines in proportion of 

 1 : 1 .5 :1 , ocelli nearly 1 . Thorax similarly but less strongly sculptured 



