NO. 1113. PROCEEDINGS OF THE NATIONAL MUSEUM. 397 



ivory \itt;i, not quite reaching- margin nor suture; the punctuation is 

 sparse, but rather coarse before the ivory band, and behind it, it is 

 tiner, gradually more obsolete toward apex. The silvery band of the 

 prothoracic peduncle is f)rolonged beneath on the sides of the mesoster- 

 num, and the ivory band of elytra is continued as a band of silvery hairs 

 on the posterior part of the metasteruum. Femora strongly clavate; 

 tibiae deeply sulcate and carinate; tarsi short. Length 4 mm. 



One example, collected by Prof. C. II. T. Towusend at Brownsville, 

 Texas, June 20, 1805. 



Ti/p€.—:So. 208, U.S.N.M. 



It will be interesting to see if the antenna! characters of this species 

 are sexual or not, when the female is discovered. Bates has described 

 an allied genus Dlphyraimi,^ where the male has the third and fourth 

 antenual joints strongly clavate and the female these joints simple but 

 the terminal joints dilated. 



LEPTURA PERNIGRA, new species. 



Eobust, entirely black, covered with a sparse, short, black x>ubes- 

 cence, longer and more dense on the thorax. Dorsal surface sub- 

 opaque; ventral surface and legs shining. Antennie filiform, as long 

 as three-fourths of the body in the male, shorter in the female; 

 fourth joint as long as the sixth, fifth a little longer, third a little 

 louger than fifth; last joint not appendiculate. Head less wide than 

 the thorax; eyes large, prominent; vertex slightly concave, rugosely 

 punctate; mouth strongly produced; clypeus and labrum shining, 

 sparsely punctate. Thorax campanulate, a little longer than wide, 

 strongly narrowed at apex, deeply constricted at base, strongly 

 rounded at the sides; posterior angles wanting; median line obso- 

 letely depressed, smooth at base; disk densely but not confluently, 

 moderately coarsely punctate. Elytra at base much broader than 

 thorax, slightly narrowed from the base; apices slightly dehiscent, 

 obliquely truncate, broadly emarginate with angles acute; jjunctua- 

 tion slightly less coarse than on the thorax, very dense but not conflu- 

 ent at the base, more dispersed and muricate toward apex; ventral 

 surface densely i)unctate; middle of the last three abdominal segments 

 sparsely and finely punctulate, in the female nearly smooth. Length, 

 10 to 10.5 mm. 



Male. — Last ventral segment broadly concave, apical margin ])roadly 

 rounded. 



Eleven males and two females collected on Wilsons Peak, Los 

 Angeles County, California, in June by Mr. I). W. Coquillett. 



Tiipc.—^o. 207, U.S.N.M. 



This very distinct species should take its place in the group L. san- 

 giiinea of LeConte. From the equally black male of L. Icvtijica, LeConte, 



1 Trans. Ent. Soc. Loiidoii, 1872, p. 187. 



