402 BULLETIN 15, UNITED STATES NATIONAL MUSEUM. 



last two, or the fifth and sixth, being wider than hmif^ the club joints are 

 slightly pedicellate, transverse, increasing in size, the last very large 

 cone-shaped. Mesonotal furrows deep and broad. tScutelhim with a 

 punctate frenum and two broad fovetii at base. Metathorax rugoso- 

 punctate, pubescent. Wings hyaline, pubescent, fringed. Abdomen 

 smooth, polished, impuuctured, the petiole longitudinally striated. 



Habitat, — Washington, D. C. 



Type in Coll. Ashmead. 



Described from a single specimen, taken by myself along the canal 

 at Georgetown. 



TROPIDOPSIS Asbm., gen. uov. 

 (Type T. clavaia Ashm.) 



Head subglobose, the face in the female Hat, with delicate side keels; 

 ocelli 3, triangularly arranged; eyes large, rounded. 



Antenna' in $ 12-jointed, terminating in a large, abrupt, o-jointed 

 club, the fuuicle slender; in $ 14-Jointed, filiform, longer than the body, 

 the flagellar joints, except the first and last, elliptic-oval, pilose. 



Mandibles short, bifid. 



Thorax as in Lo.votropa, the metathorax emarginated posteriorly, the 

 angles a little prominent, centrally with an acute cariiui. 



Front wings pubescent, the submarginal nervure reaching the costa 

 at about the middle, the marginal nervure about twice as long as thick, 

 the stigmal vein not developed, the basal nervure distinct. 



Abdomen petiolate, oblong-oval, the second segment very long. 



Legs clavate. 



Allied to Loxofropo, l)ut readily distinguished by the much longer 

 submarginal nervure, presence of facial keels, and the ditierence in 

 the male antenna. 



Tropidopsis clavata, sp. uov. 

 (PI. XVII, Fig. 2, 9 ; ii, ^ auteinia.) 



9 . Length, ].4""". Brownish-red or ferruginous, smooth, polished; 

 antenna^, except club and legs, pale, or yellowish. Antenna lli-jointed, 

 terminating in an abrupt 3-jointed black club, the first two joints of 

 which are rpiadrate, the last oblong; funicle 7-jointed, slender, the first 

 joint about twice as long as the second, the following not longer than 

 thick, the last two or three slightly trauverse; pedicel obcouic, nuich 

 larger and stouter than the first funiclar joint. Head globose, the face 

 flat with delicate side keels. Eyes large, rounded. Scutellum with a 

 single fovea at ))ase. Metanotum emargiuate, the angles a little promi- 

 nent. Abdomen oblong-oval, the petiole a little longer than thick, 

 pubescent. Wings hyaline, fringed, the submarginal vein reaching the 

 costa at about the middle of the wing, ending in a subtriaugular 

 marginal vein; basal nervure straight. 



$. Length, 1.3""". Antenna longer than the body; 14-jointed, fili- 



