Coleopterological Notices. 307 



the intervals narrow and extremely convex ; in obsoletus the sulci 

 are always very coarsely punctate and the intervals wide and flatter. 

 Porcatus further differs in its prolonged and prominent prosternal 

 process, in its longer antennae and in its very much longer and more 

 robust tarsi. 



E. Clineaticollis n. sp. — Rather slender in the male, robust in the 

 female, moderately convex, rather shining, the pronotum feebly alutaceous : 

 elytra coarsely rugulose. Head rather large, more than one-half as wide as 

 the prothorax, very coarsely, deeply and rather densely punctured ; antennae 

 short and robust, distinctly shorter than the head and prothorax, third joint 

 two and one-half times as long as wide, fully as long as the next two, fourth 

 but very slightly longer than the fifth. Prothorax from one-third to two-fifths 

 wider than long, the «apex nearly as wide as the base, broadly, very feebly 

 emarginate in circular arc, the apical angles slightly obtuse, very narrowly 

 rounded and not in the least prominent ; base subtruncate, the angles slightly 

 obtuse, not distinctly rounded but not noticeably prominent; sides strongly 

 arcuate anteriorly, conspicuously convergent and almost perfectly straight in 

 basal two-thirds ; disk widest at apical third, broadly convex above, strongly 

 convex and declivous at the sides, rather sparsely, coarsely and deeply punc- 

 tate, the punctures about twice as large and distant as those of humeralis. 

 Elytra distinctly less than twice as long as the prothorax and from one-fourth 

 to two-fifths wider than the latter, at base equal in width to the contiguous 

 base of the same, rather abruptly declivous and pointed at apex ; humeri 

 obtuse, not rounded, not in the least prominent ; disk rather depressed above, 

 gradually strongly convex and declivous toward the sides, very coarsely, 

 deeply and densely punctate, the punctures irregularly arranged without 

 trace of impressed stripe, not muricate but producing a strongly rugulose 

 appearance by mutual semi-coalescence. Legs short and somewhat robust : 

 spurs of anterior tibiae rather slender but extremely unequal, the anterior 

 more than twice as long as the posterior in the male, less unequal, the ante- 

 rior about one-third longer than the posterior, although much more robust and 

 obtusely pointed in the female. Length 14.0-15.0 mm. ; width 5.2-6.9 mm. 



California (exact locality unknown). 



This species belongs near humeralis but differs in four important 

 characters, viz : the much shorter and more robust antenna? and 

 legs, the unexposed humeri, the very much coarser and deeper 

 elvtral sculpture and coarser, sparser pronotal punctures,-and finally 

 the smaller and much less unequal spurs of the anterior tibiae in the 

 male, the larger spur in humeralis being nearly four times as long 

 as the smaller one. In considering this enormous disparity in size 

 of the spurs, attention is redirected to the conditions existing in 

 Gnaptor, alluded to in the introductory remarks to the present genus. 



