10 PROCEEDINGS OF THE NATIONAL MUSEUM vol.69 



PSEUDORHOPUS HARTMANI, new species 



Plate 1, figs. 2 and 11 ; plate 2, fig. 14 



Female. — Head slightly wider than long, thin frontooccipitally, 

 as seen from in front broadly rounded above, the sides well rounded 

 and a little convergent toward the broad truncate oral margin; 

 occiput perfectly plane on lower half, moderately concave above the 

 middle, with the neck inserted at the middle of this concavity, con- 

 siderably above the center of the occiput as a whole; eyes small, 

 nearly circular, only slightly longer than wide, the ventroposterior 

 margin slightly flattened; frontovertex much broader than long, the 

 ocelli in a very obtuse angle, the posterior pair about one-half as 

 far from the eye margins as their distance apart and much closer 

 to the occipital border; cheeks rather long and equal to the length 

 of the eyes. Face with a very distinct large depression with sloping 

 sides, reaching from a little above the oral margin at the insertion 

 of the antennae far upward between the eyes, the inferior part 

 divided by the triangular prominence between the antennae; this 

 prominence being broadly convex, not very high, a little longer 

 than its greatest width and reaching upward a little beyond a line 

 drawn tangent to the lower margin of the eyes; superiorly the 

 depression is separated from the frontovertex by an angulation. 



Antennae inserted far apart slightly above the oral margin ; scape 

 flattened, linear, and slightly wider on the basal half; pedicel twice 

 as long as thick, as long as the following three and one-half joints 

 combined; flagellum rather strongly clavate, the first three funicle 

 joints subequal, slightly wider than long, and increasing slightly m 

 width distad, the fomth and fifth joints increasingly both wider and 

 longer, the fifth being considerably wider than long; club a little 

 longer than the entire funicle, distinctly increasing in width toward 

 the apex, where it is obliquely truncate, the greatest width nearly 

 twice that of the preceding joint. 



Mandibles with a very broad truncate margin at apex; maxillary 

 palpi two-jointed, the basal joint a little longer than thick, the apical 

 joint about three times as long, tapering and with two setae at 

 apex; labial palpi with only one fusiform joint, which is about one- 

 third as long as the entire maxillary palpus. 



Thorax short, robust, about as thick dorsoventrally as broad and 

 rather convex above; pronotum strongly arcuate and hardly visible 

 in dorsal view; mesoscutum large, about one-third broader than 

 long, its posterior margin straight; axillae much wider than long, 

 acute, and meeting medially; scutellum distinctly four-sided, longer 

 than wide and reaching almost to the base of the abdomen, the apex 

 rather acutely angled, the sides abruptly declivous, the disk de- 

 pressed; propodeum very short medially, but lengthening at the 



