CJhler.] 434 [April 17, 



VELIID.E. 



Rhagovelia Mayr. 

 B. obesa. 



Rhagovelia obesa Uhler, Proc. Bost. Soc. N. H., 1871, p. 107. 



Allied to R. collaris Mayr (Burm.), but differs in the colors, in the 

 more contracted abdomen with its acutely produced posterior tips of 

 the connexivum, and in the absence of dense long hairs at the tip of 

 venter in the same sex. 



Brownish, or bronze-black; the under side bluish, sericeous; when 

 very mature less polished, but more densely powdered with bluish, or 

 cinereous bloom. Head black, velvety, the front almost truncated, 

 cinereous, with an impressed longitudinal line running almost to the 

 base, a few long hairs about the sides and above ; the cranium a little 

 elevated on the middle, extending back in the form of a triangle; 

 the base of the occiput transversely a little carinately elevated. La- 

 brum and lateral lobes yellowish, or rufo-piceous ; rostrum black, 

 reaching to the tip of the anterior coxae. Eyes round, brown. An- 

 tenna? black, excepting the base of the basal joint, less hairy than in 

 R. collaris ; the basal joint stoutest, curved, about twice as long as the 

 second joint, the second subequal to the third, the fourth decidedly 

 shorter than the third. Thorax obese, the pronotum velvety blackish, 

 sparingly clothed about the sides with fine golden pubescence; eol- 

 lum with an orange band which is interrupted in the middle ; middle 

 line faintly carinated; the tip of pronotum produced at tip, curved 

 upwards, its extreme end expanded, emarginated, and each process 

 granulated; the humeri prominent in the winged individuals, in the 

 unwinged it is obliquely rounded. Pectus bluish, sericeous, each side 

 of prosternum broadly orange. Coxa?, trochanters, and usually the 

 base of femora, yellow; the femora bronzed or bluish-black, minutely 

 hoary pubescent; the tibiae and tarsi duller black; posterior femora 

 of the males stouter than of the females, in both with a yellow, black- 

 tipped, curved spur beyond the middle, and from it to near the tip 

 series of minute teeth. Abdomen moderately compressed, (very 

 strongly compressed in the unwinged females) minutely sericeous, 

 pubescent, excepting on the middle of tergum, which is bald, shining 

 black; the raised upper edge of the connexivum orange, in the female 

 its posterior tips produced into long slender spines. The middle of 

 the ante-genital ventral segment of the male quadrately, broadly flat- 

 tened, each side of which a little elevated. Basal genital segment of 



