Coleopterological Notices, III. 113 



exceedingly robust, compressed, rapidly and finely attenuate toward apex, 

 two-fifths as long as the body, joints four to eleven gradually increasing in 

 length, six and seven on the compressed side but very slightly longer than 

 wide, the tenth three-fourths longer than wide, the third quite distinctly 

 longer than the fourth. Prothorax three-fourths wider than long, the apex 

 broadly, moderately arcuate, three-fourths as wide as the base, the latter 

 broadly, strongly arcuate or feebly lobed in the middle, transverse toward the 

 basal angles, which are slightly obtuse but not distinctly rounded ; sides 

 broadly, evenly arcuate throughout ; disk slightly widest at basal third, very 

 feebly impressed in the middle near the base, very finely and rather sparsely 

 punctate. Elytra but little more than three times as long as the prothorax 

 and equal in width to the disk of the latter, rather abruptly but acutely ogival 

 in apical third ; sides parallel and straight ; disk with very feebly impressed 

 series of unusually fine and feeble punctures, the intervals still more minutely 

 and sparsely punctate. Abdomen finely and unusually densely punctate, the 

 apices of the segments narrowly impunctate, metasternum a little more coarsely 

 and sparsely so. Legs moderate, normal, the basal joint of the hind tarsi but 

 slightly longer than the remainder. Length 6.8 mm. ; width 2.8 mm. 



California (southern). 



A remarkably isolated species, to be readily identified by its 

 smooth, rather shining, minutely, sparsely punctate surface and 

 robust, compressed and rapidly finely attenuate antennae ; the pro- 

 notum is unusually deplanate along the base to the basal angles, 

 but strongly declivous thence anteriorly along the sides. 



I have seen but a single specimen which is a female. The so- 

 called sixth segment is about one-fifth as wide as the fifth, truncate 

 at apex, with the angles rounded. 



This species appears to approach the genus Menceceus, but the 

 posterior angles of the prothorax do not exhibit the slightest ten- 

 dency to prolongation backward. 



34 H. Iiitidipeiiilis n. sp. — Oblong-elongate, parallel, subdepressed, 

 dark piceo-castaneous above, the under surface, legs and antennae pale rufo- 

 testaceous ; elytral suture narrowly rufescent ; prothorax rather dull, the 

 elytra strongly shining ; pubescence very short, rather sparse, inconspicuous. 

 Head rather coarsely punctate, sparsely so between the eyes, the latter moder- 

 ate in size, separated by nearly three- fourths of their width ; antennae long, 

 somewhat stout, fully one-half as long as the body, the joints gradually nar- 

 rower and shorter toward apex, the intermediate extremely feebly obconical 

 and distinctly more than twice as long as wide, the third and fourth equal. 

 Prothorax a little more than one-half wider than long, the apex rather strongly 

 arcuate and continuous with the sides, which are broadly arcuate anteriorly, 

 becoming nearly parallel and straight only very near the base, the basal angles 

 right, not rounded ; base transverse, the sinuations rather broad, moderately 



