Goleopterological Notices, VI. 143 



Obesus, granularis and pallens are typical of three distinct 

 sections of the genus, and the old world species will add several 

 others. 



1. A. obe.Slls n. sp. — Stout, very convex, dull, the elytra alutaceous, rufo- 

 testaceous, the elytra, inetasternuni and abdomen black, varying to brown; 

 pubescence short, coarse, cinereous, recumbent, rather dense and conspicuous, 

 devoid of erect setae. Head triangular, slightly wider than long, rather de- 

 pressed, tlie base transversely truncate or even very feebly sinuato-truncate 

 but not distinctly imijressed; tempora narrowly rounded, \erj prominent; 

 eyes large, convex, at about three-fourths of their own length from the base; 

 disk finely and closely tuberculose, with a wide smooth median line toward 

 apex; antennie scarcely one-half longer than the head, somewhat slender, 

 moderately inerassate, the tenth joint slighth? wider than long, eleventh only 

 slightly longer than the tenth, rounded, obtusely pointed. Frothorax trans- 

 versely trapezoidal, distinctly wider than the head, widest and more strongly 

 rounded near the apex, the sides thence convergent and broadly, evenly arcu- 

 ate to the basal margin Avhich is distinct and cylindrical for a short distance to 

 the base; apex transversely and very feebly arcuate, nearly one-half wider than 

 the base; disk hnely, closely tuberculose, also minutely punctate, abruptly 

 declivous and very feebly concave toward the middle anteriorly, the summit 

 of the declivity not more strongly tuberculose; median line slightly impressed. 

 Elytra suboval, very convex, scarcely more than one-half longer than wide, a 

 little more than one-third wider than the prothorax, the sides subparallel, 

 evenly and strongly arcuate; apex somewhat narrowly subtruncate; sides 

 toward base evenly rounded almost to the prothorax, the base broadly sinuate, 

 the basal parts of the humeri very narrow and strongly rounded; disk finely, 

 closely punctate, without impressions or omoplates. Abdomen dull, strongly 

 reticulate, finely but strongly, densely punctate. Legs as in Anthicus, mod- 

 erately long, thick. Length 3.1-3.8 mm.; width 1.25-1.4 mm. 



California (San Francisco). 



The male has the anterior tibite thick and strongly, inwardly 

 arcuate toward apex, the fifth ventral rounded behind and un- 

 modified, the genital segment large, corneous, black, truncate at 

 apex and transversely, unequalh' impressed throughout the width ; 

 the copulatory spicule is broad and stout, but rather abruptly 

 narrowed near the apex and prolonged in a slender straight pro- 

 cess which is ver}' strongly compressed and vertically laminiform, 

 the apex slightlj^ swollen A'erticalh' and obtuse in profile. 



This is one of the largest, and, with the exception of Tanar- 

 thrus salinus, probably the bulkiest species of the tribe in North 

 America. I have taken it in large numbers on the sandy sea- 

 beaches near the city. 



