58 NORTH AMERICAN 



Elytra at base about equal in width to the head; sides nearly parallel, 

 slightly arcuate, longer than the width at base; together broadly, very 

 evenly, and feebly emarginate posteriorly ; suture one-fifth as long again as 

 the pronotum ; surface broadly convex, broadly and feebly impressed about 

 the suture at the base ; rather finely, deeply, and somewhat irregularly 

 punctate, punctures seldom coalescing, except at a small spot near the centre 

 of each elytron. Abdominal segments decreasing very uniformly and quite 

 rapidly in width, first somewhat narrower than the contiguous elytra : sur- 

 face convex, finely, and closely punctulate ; transverse carinae tricuspid, 

 cusps quite approximate, middle short, aciculate at tip, lateral broad, ex- 

 panding at tip, intervals strongly sinuate. Legs rather long and slender, 

 pale piceous and rufo-piceous ; first joint of posterior tarsi twice as long as 

 the second, joints two to four very narrow at base, decreasing uniformly in 

 length, 'fifth very narrow at base. 



Male. — Posterior edge of the fifth ventral segment emarginate in its middle 

 third, emargination evenly rounded, very feeble, twelve times as wide as 

 deep ; sixth segment sinuate at apex, sinus and vertices equal in width and 

 curvature, sinus but slightly wider than deep ; seventh broadly and feebly 

 emarginate at the vertex. 



Fexhale. — Sixth segment rounded behind. 



Length 3.0 mm. 



District of Columbia, 1 ; Pennsylvania, 20 ; Selma, Alabama, 1. 



A very common species, abounding on the shores of Delaware Bay 

 below Philadelphia ; it also occurs under debris on the beach at Cape 

 May, N. J. 



30. S. illgratllS n. sp. — Form rather slender. Pubescence moderately 

 short, sub-recumbent, coarse, rather close, pale fulvo-cinereous, somewhat 

 conspicuous. Head moderate or small, twice as wide as long; interocular 

 surface nearly flat, rather more than twice as wide as the eye, equally tri- 

 Lobed by the very wide and gently rounded sulcations ; intermediate surface 

 evenly and feebly convex, punctures small, rounded, rather close, very evenly 

 distributed ; ocular lines meeting at two lengths in advance ; antennae short, 

 scarcely as long as the width of head, dark piceous-brown, basal joint black- 

 ish, somewhat robust, club moderate ; joints three to six nearly uniformly 

 and quite rapidly decreasing in length, sixth slightly longer and much more 

 slender than the seventh, eighth slightly narrower than the seventh, globu- 

 lar, middle joint of club much the thickest ; maxillary palpi moderate, dark 

 piceous-brown, basal joint rather pale, piceo-testaceous. Prothorax arcuately, 

 evenly, and rather rapidly widening to the middle, where it is four-fifths as 

 wide as the head and distinctly narrower than long; sides thence rather 

 rapidly convergent and sinuate ; anterior margin just perceptibly longer and 

 more arcuate than the posterior ; surface rather finely, feebly, distantly, and 

 evenly punctate ; punctures round, separated by their own widths, inter- 

 spaces nearly flat, polished ; canaliculation oblong, beginning very slightly 

 before the middle, equal in length to two-fifths that of the pronotum, feebly, 

 and roundly impressed. Elytra at base equal in width to the head ; sides 

 strongly divergent posteriorly, longer than the width at base, straight for a 



