COLEOPTERA. 49 



long again as the second, and very slightly shorter than the last, second 

 distinctly longer than the third, third and fourth sub-equal in length. 



Male — Fourth ventral segment having a small, triangular, impunctate 

 spot at the middle of the apex ; fifth segment emarginate in its middle three- 

 fifths at apex, emargination evenly rounded, and eight to ten times as wide 

 as deep, contiguous surface impressed nearly throughout anteriorly, sides of 

 impression slightly convergent, acutely ridged, and furnished with very 

 long, coarse setae, bottom of impressed surface impunctate ; sixth segment 

 triangularly incised at apex, incision one-third as wide as the segmental 

 apex, as wide as deep ; seventh segment deeply and roundly emarginate at 

 tip, teeth distinct, lateral setae very long. 



Female. — Sixth segment bilobed at apex, cusp minute and very broadly 

 rounded. 



Length 3.7-3.8 mm. 



Hermit Lake, Mount Washington, N. H., 1 %; Mount Washing- 

 ton, N. H. (valleys), 1 ?. 



This tine species greatly resembles rugifer, but differs in its more 

 slender form, and especially in its much more slender abdomen. It 

 also differs markedly in the nature of the punctuation of the head 

 and abdomen. In the type specimen the fourth joint of the maxillary 

 palpi is plainly visible, appearing as a stiff and regularly tapering 

 spine, protruding from the apex of the third joint. The small im- 

 punctate triangle of the fourth ventral segment may possibly be 

 abnormal. 



30. S. Slioslioilis n. sp. — Form moderately robust, sides parallel. 

 Pubescence moderate in length, rather sparse, semi-erect, fine, setiform, 

 pale fulvo-piceous. Head moderate, very robust, not twice as wide as long ; 

 interocular surface slightly more than twice as wide as the eye, fiat, equally 

 trilobed by the very deep, rounded sulcations ; intermediate surface evenly, 

 broadly, and strongly convex ; punctures fine, rounded, very close, and often 

 coalescent, interspaces nearly opaque ; ocular lines meeting at less than one 

 length in advance ; antennae as long as the width of head, slender, dark 

 piceous-brown, club distinct ; third joint one-third as long again as the 

 fourth, fourth and fifth equal, sixth very slightly longer than the seventh, 

 eighth twice as long as wide, seventh and eighth just perceptibly more 

 robust than the sixth, joints of club increasing gradually iu length and 

 breadth ; labial palpi very robust, piceous-black, basal joint pale piceo-testa- 

 ceous ; mentum bearing several very long setae. Prothorax very robust, 

 widest slightly in advance of the middle, where it is just perceptibly nar- 

 rower than the head, very slightly broader than long, and as wide as the 

 elytra at base ; sides thence rather rapidly convergent posteriorly and very 

 feebly sinuate ; anterior margin slightly longer and more arcuate than the 

 posterior ; surface feebly impressed along the flanks of the pronotum, and 

 transversely and rather strongly impressed just behind the anterior margin : 

 very closely, finely, and deeply punctured ; canaliculation rather deeply ex- 

 Stenini. 4 



