Goleopterological Notices, VII. 361 



California. The inner arcuate outline formed by the strongly 

 modified joints four to six of the male antennae, reminds us 

 of a similar structure in Arthmius, and, in fact, the sixth joint 

 here is almost exactly similar to the eighth joint of the male an- 

 tenna of A. gloMcollis. This internal sinus, formed by the joints, 

 is probably of direct use in clasping the antennae of the female 

 during copulg,tion. 



This species differs greatly from biformis and arcifer in its 

 smaller size, much narrower form, narrower prothorax, and, frdm 

 the former, in the male antennae, which are radically different ; 

 these are relatively very much longer and more slender than in 

 arcifer. 



4. Li. my ops n. sp. — Elongate-oval, rather ventricose, polished andimpunc- 

 tate, black, the elytra, legs and antennae pale rufo-testaceous ; pubescence 

 coarse, pale, bristling but short on the flanks of the prothorax, moderately 

 short and recurved on the elytra. Head oval, distinctly elongate, very convex 

 anteriorly, gradually depressed posteriorly, vrhere the neck is deeply exca- 

 vated on each side of the distinct median carina as usual ; basal parts of the 

 head and sides of the neck bristling with long stiff pale setse ; eyes rather 

 small, feebly convex, with about ten rather coarse facets, median, the tempora 

 behind them very long, convergent and exactly straight to the narrowest part 

 of the neck ; clypeus conically declivous, rounded at apex ; labrum transverse, 

 parallelogramic, truncate; mandibles invisible in repose. Aniennse hareij % 

 as long as the body, regular, gradually and rather strongly incrassate toward 

 apex; first joint cylindric, ,^5' longer than wide, slightly longer and thicker 

 than the second, the latter distinctly obconic, % longer than wide, as long as 

 the next two and obviously thicker; four to six subequal, about as long as wide 

 and more or less rounded, the third a little shorter and scarcely as wide, 

 shorter than wide, six to eleven increasing perfectly evenly in width; seventh 

 feebly, the eighth more strongly, transverse; ninth %, tenth ^5, wider than 

 long, obtrapezoidal ; eleventh stout, oval, obtusely and very obliquely ogival at 

 tip, about as wide as the two preceding. Prothorax scarcely longer than wide, 

 fully }i wider than the head, feebly and somewhat arcuately narrowed an- 

 teriorly from near the middle, and just visibly narrower and strongly carinate 

 at the sides toward base; surface transversely impressed near the base, the 

 impression not extending to the sides, where there is a deep elongate fovea 

 just within each carina, also a large deep fovea on each flank below the carina. 

 Scutellum very minute. Elytra fully }4 longer than wide, 2% times as long 

 as the prothorax and a little more than twice as wide, strongly, evenly arcuate 

 at the sides and widest at the middle; humeri almost obsolete; humeral 

 plica narrow, moderate in length and rather feeble, the adjacent impression 

 very feeble; inner fovea large, deep, rounded, without a prolonged impression ; 

 subsutural impressions feeble but broadly visible toward base, the suture finely 

 and very feebly elevated but not beaded. Legs long, slender, the femora 



