342 PROCEEDINGS OF THE NATIONAL MUSEUM. 



face more or less purplish, the genae flecked with yellowish green and 

 with black; vertex moderately arched, feebly elevated above the pro- 

 uotuin, the interspace between the eyes a little broader than (male) or 

 nearly twice as broad as (female) the first antenna! joint; fastigium 

 rather shallow, but with distinct blunt bounding walls, which have a 

 subovate outline; frontal costa fully as broad as the interspace between 

 the eyes, slightly compressed above, sulcate at and below the ocellus, 

 laterally pun ctulate above; eyes rather prominent, a little longer than 

 theiufraocular portion of the geuae; antennae reddish at the base, becom- 

 ing more and more fuscous apically, about four- fifths (male) or two- 

 thirds (female) as long as the hind femora. Pronotum pretty uniform, 

 scarcely expanding on the metazona, wfiich is only slightly separated 

 from the prozona and is obscurely punctate; behind the eyes is a black 

 band, which crosses the upper half of the lateral lobes of the prozona, 

 but is not very distinct from the general iufuscation of the prothorax; 

 median carina slight, distinct only at the extreme front and on the 

 metazona; lateral carinae tolerably distinct; transverse sulci of prozona 

 slight, the anterior scarcely severing the median carina; front margin 

 truncate, hind margin obtusangulate; prozoua feebly longitudinal (male) 

 or quadrate or transverse (female). Prosterual spine of moderate 

 length, stout, conico-cylindrical, somewhat appressed, blunt, erect; 

 interspace between mesosternal lobes nearly or quite twice as long as 

 broad (male) or a little longer than broad (female). Tegmina reaching 

 or somewhat surpassing the tips of the hind femora, moderately broad, 

 distinctly tapering, very dark brown or blackish, especially in the male, 

 rather inconspicuously maculate along the discoidal area; wings rather 

 broad, hyaline, very faintly infumated in the apical half, the veins 

 mostly dark fuscous. Fore and middle femora a little tumid in the 

 male, reddish brown, infuscated above, especially at the apex; hind 

 femora mostly blackish externally, with oblique, more or less broken, 

 median and basal bands of dull testaceous, especially in the male, 

 the geniculation black; hind tibiae red with a narrow basal black or 

 blackish annulus, the spines black, eleven to fourteen in number 

 in the outer series. Extremity of male abdomen a very little clavate, 

 scarcely recurved, the supraanal plate rounded triangular, of about 

 equal length and breadth; furcula reduced to a pair of slight, blunt 

 tubercles; cerci small, compressed, the basal two-thirds straight, 

 slightly tumid, directed backward, tapering slightly, the apical third 

 forked, the forks at right angles, the upper generally twice as broad 

 and half as long again as the lower (but the lower very variable in 

 size), compressed, straight, but a little incurved, rounded at tip, the 

 lower more nearly in the course of the basal portion, straight, bluntly 

 tipped; subgenital plate rather broad, a little longer than broad, haus- 

 trate, subquadrate, entire. Basal tooth of the lower valves of the ovi- 

 positor sharp, triangular, as long as broad. 



