328 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.52. 



closely punctate and hairy, the hairs tawny; ocelli equidistant from 

 each other; antennae black, the scape and first flagellar segment 

 shinuig, the rest duU, more than 30-segmented (broken); labrum 

 broad for the genus, almost semicircular in outline, black, slightly 

 less punctate and hairy than the face; mandibles curved at tip, bi- 

 dentate, the inner tooth short, the outer much longer and curved, 

 black, beak black, the basal segments of both palpi only slightly 

 thicker than those following, all the segments except the last tending 

 toward a clavate shape, the last nearly cylindrical, tapering shghtly 

 at each end. 



Thorax. — Black, caudal half of lateral lobes of pronotum, meso- 

 scutum, a large portion of the middle of the mesopleurae, base of scu- 

 tellum and upper lialf of metapleurae red ; dorsum and cephalic half 

 of the pronotum black, this shinmg, finely punctate around its bor- 

 ders, the pits rather large and pomted below, the front borders of 

 the pits straight, the diagonal depression highly polished and smooth; 

 proepisterna black, only slightly shining, more coarsely and closely 

 punctate and hairy; parapsidal furrows of the mesonotum distinct and 

 rather sharply defined, the median lobe divided by a narrow shallow 

 longitudinal groove, the two halves flattened a little; the two lateral 

 lobes only slightly flattened; hind angles of the mesoscutum only 

 slightly produced; fossa of the scuteUum not very deep, with only 

 the median carina distinct, profile of scuteUum evenly curved to 

 tip which is lightly elevated, sides unifonnly rounded off, triangular 

 in shape with the tip truncate; mesopleurae smooth, shining, sparsely 

 and faintly punctate and hairy, the front border and all of the lower 

 half black, the remainder red; venter black, tegulae black; pleurae 

 bulging somewhat above the furrow, this straight, horizontal, well 

 defined and crenulate, and m length less than haK the width of the 

 pleurae; metathorax black, the upper third of the pleurae reddish; 

 metapleurae smooth, shining, slightly more sparsely and coarsely 

 ptmctate and hairy than are the mesopleurae, the lower hind corner 

 roughened; propodeum black, with six longitudinal keels, the two 

 median converging uniformly in front to form an elongate triangle, 

 and meeting behind in a much sharper angle, with only one distinct 

 transverse carina, which forms the base of the triangles; profile 

 gently rounded above, but with the caudal face slightly distinct from 

 the general outline; spiracles oval. 



^Vings. — Infuscated, venation typical, the second cubital cell 

 trapezoidial; fore wing, 5 mm.; hind wing, 4 mm. 



Legs. — Fore and middle coxae, trochanters, and femora black, 

 the tibiae dark and with a strong blackish tinge ; fore tarsi paler red- 

 dish, tarsal claws black, middle tarsi same color as tibiae, claws black; 

 hind coxae red, black beneath and behind, trochanters black, femora 

 honey-yellow, tips and all of tibiae and tarsi dark reddish brown, 



