438 Coleopterological Notices, V. 



California (Sta. Cruz Co.). 



The male of this remarkably isolated species has the venter 

 abruptly and strongly, subcircularly concave near the apex, the 

 sides of the concavity on the disk of the fifth segment acutely ele- 

 vated, the cusp-like elevation with a tuft of long stiff setae. In the 

 female the transverse apex of the sixth segment is a little more 

 emarginate on the right, the middle produced as an abrupt rounded 

 cusp. A single pair. 



This is the smallest, narrowest and most parallel species of the 

 genus. 



S. loiigicollis 11. sp. — Moderately stout, depresseri, polished, impnnctate, 

 rufo-testaceous and coarsely, very sparsely pubescent throughout. Head about 

 four-filths as wide as the prothorax, distinctly wider than long, the frontal 

 margin feebly arcuate, equalling one-half the maximum width and as wide as 

 the neck ; eyes rather large, moderately prominent ; tempora to the neck as 

 large as the eye, strongly rounded, not at all prominent ; frontal pit large, 

 oval, more acutely rounded behind, abrupt, extremely deep and cavernous, 

 with the bottom spongy ; fovese of the vertex small, nude, situated behind 

 the middle and distant by less than one-third of tlie total width ; anlennje a 

 little longer than the head and prothorax, gradually slightly thicker toward 

 tip, eighth joint subglobular, ninth and tenth transverse. Prothorax very 

 nearly as long as wide, widest before the middle where tlie sides are strongly 

 rounded, very strongly convergent anteriorly, sinuate near the apex, the latter 

 feebly subtubulate, convergent and nearly straight in basal half ; discal fovefe 

 minute, at the middle, separated by one-fourth the width ; transverse impres- 

 sion just behind basal third straight, abruptly, minutely foveate at the middle 

 and just behind each end ; lateral foveas at basal fourtVi large, nude and free. 

 Elytra subquadrate, two-thirds longer than the prothorax and, near the apex, 

 nearly twice as wide ; sides more inflated and arcuate posteriorly ; sutural 

 striae coarsely punctate near the base, discal very coarsely, deeply impressed 

 and coarsely punctate in basal half, continued very feeldy and indefinitely 

 by a series of feeble punctures nearly to the apex, approaching the suture; 

 intermediate region with a series of two or three coarse subbasal punctures. 

 Abdomen about as long and wide as the elytra, the first visible dorsal scarcely 

 more than one-half as long as the second, with the interrupted pubescent line 

 broad. Length 1.6 mm. ; width 0.6 mm. 



California (Sta. Cruz Co.). 



The single male before me has the abdomen deflexed behind, the 

 venter broadly, indefinitely impressed near the apex but without 

 further modification, except a very feeble transverse tumidity near 

 the anterior margin of the sixth segment. Seventh or anal seg- 

 ment of the usual structure, with the oblique asymmetric median 

 portion rounded throughout behind. 



