564 Coleopterological ^^otices^ VI. 



clothed with finer lilackish hairs; elytra with a narrow denuded ])and at the 

 base, a broad cinereous fascia extended thence to apical two-fifths which en- 

 closes a complex pattern of denuded spots and lines, then a broad rhoinbiform 

 denuded fascia at apical fourth, the apex being again cinereo-pu])escent. Head 

 two-thirds as A\ide as the prothorax, finely, rather sparsely i)unctate and ru- 

 gose, the wide interspaces almost smooth toward the center of the disk; im- 

 pressions feeble, separated at apex by a smooth impunctate spot ; eyes moder- 

 ately large, not very prominent; antenntc moderate, the tenth joint equilatero- 

 triangular and almost symmetrical. Prothorax three-fifths wider than long, wid- 

 est and rather narrowly rounded near the base, the sides strongly convergent 

 and nearly straight thence to the apex ; disk very denselj- punctate, rugose and 

 dull under low power. Elytra but slightly more than one-half longer than 

 wide, nearly one-half wider than the prothorax, parallel near the Ijase, dis- 

 tinctly inflated and with the sides parallel and arcuate in apical three- fourths; 

 apex very broadly and obtusely ogival ; disk rather finely but strongly, not 

 very closely punctate. Length 2.0-2.25; width 0.8-1.0 mm. 



Nevada (Reno). 



The description relates to the female, and the male is, as usual, 

 smaller and narrower, parallel, not inflated behind, with a larger 

 head and more prominent eyes, and the prothorax only about two- 

 fifths wider than long; in addition, the basal denuded band of the 

 female elytra is less evident. The fifth ventral of the male is 

 broadly sinuato-truncate at apex but otherwise unmodified. 



I took a good series of this species, which is not unusually vari- 

 able, although the tibiae and tarsi of some specimens become pale 

 and reddish. 



DASYTELLl'S n. gen. 



The species of this genus are the smallest members of the tribe 

 Dasytini thus far discovered in North America. They are allied 

 to Dasytes,as here accepted, in general organization, especially in 

 having an impressed submarginal pronotal line delimiting a lateral 

 area of greater rugosit}', and in the ver}- narrow epipleurre which 

 gradually become subvertical and evanescent behind, but ditter 

 in having the ungual appendages well developed and generally 

 full}- as long as the claws. The anterior tibire are slender, 

 clothed rather densely' with short and decumbent ash}' hairs, and 

 are completely devoid of spinules. The antenna? as a rule are 

 much shorter and more incrassate toward tip than in Dasytes, 

 and the marginal cilia of the body are very short and lie close to 

 the surface, being usually altogether invisible nnder low power. 



