COLEOPTERA. .",1 



tibly and roundly emarginate behind ; suture about equal in length to the 

 pronotumi; surface rather depressed, each having a slight elevation at the 

 middle of its base ; coarsely, sub-variolately, closely, and very irregularly 

 punctured and channeled. Abdominal segments decreasing uniformly and 

 very gradually in width, first about as wide as the contiguous elytra ; surface 

 moderately convex, finely and feebly pnnctulate ; transverse carinae uni- 

 cuspid, cusp long and aciculate. Legs rather long and slender, fuscous, 

 under sides of femora rufous ; first joint of posterior tarsi very short, one- 

 half as long again as the second, one-half as long as the last ; joints two to 

 four uniformly and gradually decreasing in length, together not as long as 

 the fifth. Body winged. 



Male. — Fourth ventral segment slightly flattened in its middle three-fifths, 

 more strongly so behind, edge scarcely modified ; fifth segment deeply emar- 

 ginate in its middle three-fifths at apex, emargination very evenly rounded, 

 from six to seven times as wide as deep, contiguous surface rather strongly 

 and cylindrically impressed throughout anteriorly, the borders of all the 

 impressed and flattened surfaces being bordered with long, recumbent, pice- 

 ous setae ; sixth segment narrowly sinuate at apex, sinus one-half as wide 

 as the apices, nearly as deep as wide, acutely rounded at the bottom, sides 

 nearly straight, exterior angles rather acute. 



Female. — Sixth segment broadly and very evenly rounded behind. 



Length 4.0-4.2 mm. 



Vancouver Island, British Columbia, 5. 



Resembles at first sight a diminutive maritimus, but is quite dis- 

 tinct,' as may be interred from the descriptions. 



32. S. vexatllS n. sp. — Form moderately slender. Pubescence mode- 

 rately long, semi-erect, somewhat close, pale piceous anteriorly, flavate on the 

 abdomen. Head rather large, twice as widb as long ; interocular surface 

 slightly more than twice as wide as the eye, moderately depressed, finely and 

 somewhat irregularly punctured, interspaces in some spots as wide as or 

 wider than the punctures, flat, and shining; equally triiobed by the very 

 deep and conspicuous sulcations ; intermediate surface strongly and evenly 

 convex; ocular lines meeting at two lengths in advance ; antennae piceous- 

 black, very slightly longer than the width of head, slender, club not con- 

 spicuous ; third joint scarcely one-fifth as long again as the fourth, joints 

 four to six uniformly decreasing in length, sixth and seventh equal in 

 length, the latter thicker, eighth elongated, as wide as the "seventh, joint- of 

 club increasing in length, the last two equal in thickness and stouter than 

 the ninth ; first joint of maxillary palpi and base of the second translucent, 

 pale testaceous, remainder piceous-black. Prothorax widest a little b 

 the middle, where it is four-fifths as wide as the head, and about as wide as 

 long; sides thence moderately convergent posteriorly and slightly sinuate ; 

 anterior margin slightly shorter and much more arcuate than the posterior : 

 surface distinctly bi-tuberculate at the sides, very irregularly and rather 

 finely punctate ; punctures in the middle very small and distant, crowded 

 and larger at the ends ; canaliculation very conspicuous, short, narrowly 



