564 Coleopterolocjical Notices, VI. 



clothed with Hnor Ijlackish hairs; elytra with a narrow denuded hand at the 

 ha.se, a broad cinereous fascia extended thence to apical two-fifths which en- 

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

 denuded fascia at apical fourth, the apex being again cinereo-pubescent. Head 

 two-thirds as wide as the prothorax, finely, rather sparsely punctiite and ru- 

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

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

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

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

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

 and nearly straight thence to the apex; disk very densely ininctate, rugose and 

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

 wide, nearly one-half wider than the prothorax, parallel near the base, 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-truneate at apex but otherwise unmodified. 



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

 able, although the tibia? and tarsi of some specimens become pale 

 and reddish. 



DASVTELLITS n. gen. 



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

 Dasytini thus far discovered in North America. The}' are allied 

 to I)asytes,as here accepted, in general organization, especiall}' in 

 having an impressed submarginal pronotal line delimiting a lateral 

 area of greater rugosity, and in the ver}- narrow ei)ipleur;'e which 

 gradually- become subvertical and evanescent behind, but difier 

 in having the ungual appendages well developed and generall}^ 

 fully as long as the claws. The anterior tibia? are slender, 

 clothed rather densely with short and decumbent ashy 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 A'er}- short and lie close to 

 the surface, being usually altogether invisible under low power. 



