226 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



Habitat. — Virginia. 

 Tyi^e in National Mnseum. 



Described from a single specimen taken by Mr. Theo. Pergande, Oc- 

 tober 10, 1880. 



Anteris nigriceps, sp. nov. 

 (Pl.x,Fig.2, 9.) 



S 9 . Length, 1.8 to 2.1"'"'. Head and thorax closely, minntely pniic- 

 tate; three basal abdominal segments? striated. Head and abdomen 

 black, the petiole and second segment at base, yellow, sometimes fus- 

 cous or black ; mandibles pale, the teeth black ; thorax and legs brown- 

 ish-yellow; in 9 the scutellum and metathorax fusccms or black, rarely 

 so in S ; mesonotum with 2 furrows. Antenna} 12-jointed, black, the 

 scape yellow, sometimes the pedicel in female yeHow; in the 2 the first 

 funiclar jointislong, longer than the pedicel, the second scarcely half as 

 long as the first, the third very slightly shorter than second, the fourth 

 transverse, club long, fusiform ; in S filiform, the first funiclar joint about 

 twice as long as the pedicel, the third shorter, emarginated at base, the 

 second shorter than the third, the joints after the third oblong oval, 

 about twice as long as thick. Wings hyaline or subhyaline; the mar- 

 ginal vein jiunctiform or about twice as long as thick, the stigmal vein 

 oblique, ending in a distinct rounded knob. 



Habitat. — Jacksonville, Fla., and Arlington, Va. 



Types in Coll. Ashmead. • ■ 



Described from several specimens. 



AFEOUS Forster. 



Hym. Stud., II, p. 101 (1856). 



(Type A. Jeptocerus Fiirst.) 



Head transverse quadrate or subquadrate, the occiput concave, mar- 

 gined; ocelli 3, triangularly arranged, the lateral a little away from the 

 marginof the eye; eyes large, oval, bare. ; .* 



Antennae inserted just above the clypeus, 12-jointed, filiform in both 

 sexes. .. n 



Maxillary palpi 4-join ted; labial i)alpi .'i-jointed. 



Mandibles 3-dentate. 



Thorax long ovoid, the prothorax visible from above, especially later- 

 ally; mesonotum with 2 distinct furrows, abbreviated anteriorly; scu- 

 tellum short, with a row of punctures posteriorly; metathorax short, 

 with the dorsum bicarinated. 



Front wings with the marginal vein usually longer than the stigmal, 

 the postmarginal greatly lengthened, the stigmal oblique, with a slight 

 knob at tip; basal vein wanting. 



Abdomen sessile, fusiforu). always much longer than the head and 

 thorax together, all the segments lengthened, the second and third the 

 longest, the first and second with lateral dorsal carinae. 



