22 PROCEEDINGS OF THE NATIONAL, MUSEUM. vol. 65. 



more densely ciliated. The males differ from males of tdbanivorus 

 by having the first funicle longer than the pedicel, the second joint 

 somewhat longer than fii*st, the third subequal to the first, and the 

 head, thorax and abdomen entirely black. 



Female. — Length, 1.15 mm. Vertex and posterior orbits, finely 

 reticulate-punctate, remainder of head smooth and polished; eyes 

 not hairy; antennae 11-jointed, clavate; scape subcylindrical, as long 

 as the pedicel and first three funicle joints combined; pedicel about 

 twice as long as thick; first funicle joint more slender than the pedi- 

 cel, about twice as long as thick and fully three-fourths as long as 

 pedicel; second funicle joint slightly shorter than the first, third a 

 little longer than broad, fourth about as long as broad ; club 5-jointed, 

 approximately equal in length to the pedicel and funicle combined, 

 the first and second joints very slightly broader than long, third and 

 fourth subquadrate, fifth longer than broad and conical ; mesoscutum 

 convex, sculptured like the vertex; scutellum smooth; propodeum 

 broadly and deeply excavated for reception of the protuberance on 

 first abdominal segment, only the lateral angles visible from above 

 and these small and triangular ; wings extending to the apex of abdo- 

 men and about one-third as broad as long ; the marginal vein about 

 two-thirds as long as the stigmal; postmarginal twice as long as 

 stigmal; discal ciliation moderately dense; marginal cilia short, the 

 longest cilia being at the posterior apical angle of wing; along the 

 anterior margin of wing are about 28 nearly evenly spaced fine 

 bristles between the base of submarginal and the apex of postmar- 

 ginal veins ; marginal cilia of hind wing equal to approximately two- 

 thirds the width of wing; abdomen narrower than the thorax, 

 pointed ovate, one-third longer than the head and thorax, abruptly 

 narrowed beyond second segment, polished, the suture between first 

 and second segments foveate; first segment broader than long with a 

 prominent rounded protuberance above almost equal in height to 

 the length of the segment; second segment comprising a little less 

 than half the total length of abdomen; third segment narrower at 

 base than the second at apex, the third and following segments gradu- 

 ally tapering toward apex of abdomen; ovipositor slightly exerted. 

 Black; trochanters, all tibiae and all tarsi brownish testaceous, the 

 apical joint of all tarsi dark and the front femora more or less 

 brownish; antennae entirely black; wings hyaline. 



Male. — Length 0.9 mm. Antennae 12- jointed, not clavate; scape as 

 long as pedicel and two first funicle joints together; pedicel nearly 

 twice as long as thick; first flagellar joint as long and as thick as 

 the pedicel; second longer than the first; third subequal to the 

 first; following joints moniliform and subquadrate, the apical joint 

 longer than broad and ovate; wings extending beyond the apex of 



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