68 Coleopterological Notices, III. 



California (probably near San Diego). Mr. W. Jiilich. 



The type is apparently a female, and the anterior tarsi are not 

 dilated. It is easily distinguishable from both bachei and blaisdelli 

 by the short antennae and broader elytra, and from the former, in 

 addition, by its short transverse prothorax with fine marginal bead. 



H. cylindriformis n. sp. — Narrow, strongly convex, subcylindrical, 

 black throughout, shining and feebly alutaceous. Head scarcely as long as 

 wide, broadly, evenly, feebly emarginate at apex, the surface rather finely and 

 densely, very strongly punctate ; eyes rather more prominent than the feebly 

 reflexed sides before them ; antennae slender about one-half as long as the 

 body (male) or scarcely as long as the head and prothorax (female), third 

 joint a little longer than the next two together, outer joints gradually and 

 only slightly broader, the tenth about one-half longer than wide and a little 

 shorter than the eleventh, the latter slightly longer in the male where it is 

 twice as long as wide, obliquely acute at apex. Prothorax elongate, fully as 

 long as wide, the apex broadly arcuate, a little narrower than the base, the 

 latter subtruncate ; sides broadly arcuate at or just before the middle, feebly 

 convergent and more feebly arcuate to the apex, broadly, distinctly sinuate 

 before the basal angles which are right, not at all rounded and somewhat 

 prominent ; disk evenly convex, finely, densely punctate, the punctures strong 

 and always distinctly separated, but slightly less dense toward the middle 

 where there is usually a narrow uneven impunctate line. Elytra twice as 

 long as wide, not quite three times as long as the prothorax, and, in the 

 middle, scarcely two-fifths wider than the latter ; sides parallel, broadly, 

 feebly, evenly arcuate ; apex obtusely ogival ; humeri completly obsolete, the 

 base exactly equal to the thoracic base ; disk with unimpressed series of small 

 unevenly spaced but generally approximate and slightly elongate punctures, 

 the intervals fiat, very finely, irregularly, sparsely punctate. Abdomen very 

 finely, rather sparsely punctate. Legs slender, the anterior tarsi very slightly 

 dilated in the male. Length 9.0-14.0 mm. ; width 3.2-5.0 mm. 



New Mexico (Fort Wingate). Dr. Shufeldt. 



This species, which is represented by a series of eight specimens, 

 is allied to difficilis, but differs in its more slender subcylindrical 

 form, much more elongate prothorax with less blunt apical angles, 

 narrower and more finely and sparsely punctate elytra and rather 

 shorter antennae. 



H viridimicans Horn appears to be homologous with the Cuban 

 rufipes, and to be more appropriately assignable to Nautes than to 

 Helops, although it must be confessed that the difference between 

 these genera has not been very satisfactorily expressed. 



H. montana Lee. is quite distinct from convexula in its broader, 

 more oblong form, and in its longer and much stouter antennae 

 and notably larger size. 



