428 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 112 



laterally. Sixth sternum longer than seventh; eighth visible its 

 entire width. Claspers parallel sided, not reaching apex of hypo- 

 pygium (fig. 1). 



Overall body length 12.0 mm. 



Female: Head brownish, darker ventrally, with inconspicuous 

 longitudinal median yellowish stripe. First antennal segment with 

 six or seven narrow yellowish bands; second, third, and fourth brown- 

 ish, last one covered with long silvery pilosity. Thorax brownish; 

 forelegs yellowish white, apices and bases of segments brownish; 

 brownish areas among spines of armature of f orefemur, spines yellowish 

 white or stramineous with black points, hairs of armature brown; 

 tarsi brownish. Middle and hind femora yellowish white, each with 

 four or five broad brownish bands; middle and hind tibiae straw 

 colored; middle tibia with brownish basal band; tarsi blackish brown. 

 Abdomen brown, darker ventrally and toward apex, terga lighter 

 medianly. 



Body with very scarce silvery decumbent pilosity. 



Head heavily granulose; eyes relatively small. Interantennal 

 spine nearly straight. Fourth antennal segment four times as long 

 as third. 



Thoracic segments granulate; lengths of segments: 2.6, 1.5, 0.8 mm. 

 Armature of forefemur with inner row consisting of setae arising from 

 wartlike bases, a strong spine at end of row. Claws of foretarsi two ; 

 the inner very short, closely appressed to base of outer. First spine 

 of forefemur at nearly its length from tip of trochanter. Basal half 

 of forefemur gradually thickened to first spine. 



Abdomen without bulbous swelling. Posterior angles of terga 

 produced, lateral margins shallowly concave, hind margins with 

 median blackish wart or small projections, as in figure 88; connexivium 

 rugose or granulose. First tergum with well-developed median 

 longitudinal elevation. Sixth tergum medianly longer than seventh, 

 its apex wider than that of seventh, with a backward sloping tubercle 

 on hind margin. Seventh tergum with posterior angles produced 

 backward, hind margin with a well-developed median spine, with 

 longitudinal carina. Eighth tergum transversely corrugate, lateral 

 margin slightly elevated, hind margin medianly produced and shallowly 

 concave at either side of center, lateral angles slightly elevated. 

 Ninth tergum nearly twice as long as eighth, disc slightly elevated, 

 lateral margins from about middle of segment to apex raised and then 

 curving mesad, with an almost circular elevation between them (fig. 

 123). Hind margins of second to fifth sterna straight; of sixth 

 broadly and shallowly concave. Seventh sternum concave on sides, 

 and hind margin with a narrow small median emargination ; laterally 

 compressed near middle. 



