G4 NORTH AMERICAN 



finely and rather closely punctulate ; transverse carinae tricuspid, cusps 

 widely separated, short, middle ones aciculate at tips ; under surface finely 

 and sparsely punctulate, piceous-black, densely pubescent. Legs moderate. 

 fusco-piceous ; first joint of the posterior tarsi twice as long as the second 

 second very slightly longer than the third. 



Male. — Unknown. 



Female. — Sixth ventral segment having traces of a slight bilohation at 

 apex, otherwise evenly rounded. 



Length 2.7 mm. 



White Fish Point, Michigan, 1. 



45. S. inoriiatus n. sp. (Schwarz MS.). — Form rather slender. Pubes- 

 cence moderately close and long, semi-erect, setiform, cinereous, and rather 

 conspicuous. Head moderate, slightly more than twice as wide as long ; inter- 

 ocular surface nearly flat, slightly more than twice as wide as the eye ; closely, 

 evenly, and finely punctate throughout ; interspaces one-half as wide as the 

 punctures, convex, polished ; longitudinal elevation as wide as the lateral 

 portions, evenly and moderately convex, very apparent ; ocular lines meeting 

 at over two lengths in advance ; antennae longer than the width of head, 

 rather slender, piceous-black, club small ; third joint one-third as long again 

 as the fourth, fourth and fifth equal, sixth much longer and narrower than 

 seventh, eighth elongated, nearly as thick as the seventh, joints of club 

 increasing in length, last two equal in width, last as long as the eighth and 

 ninth together ; maxillary palpi dark piceous, first joint slightly paler. 

 Prothorax widest slightly before the middle, where it is four-fifths as wide 

 as the head, and very slightly narrower than long ; sides thence very moder- 

 ately convergent posteriorly and very feebly sinuate ; anterior and posterior 

 margins equal in length, the former the more arcuate ; surface rather evenly 

 convex, closely, rather finely, and evenly punctured ; punctures polygonal 

 in outline, interspaces one-fourth their width, convex, and polished ; canali- 

 culation distinct, somewhat irregular in outline, roundly impressed, begin- 

 ning slightly before the middle, and equal in length to one-half that of the 

 pronotum. Elytra at base as wide as the head ; sides nearly parallel, slightly 

 longer than the width at base ; together moderately emarginate posteriorly; 

 suture slightly longer than the pronotum ; surface evenly and rather strongly 

 con vex » deeply, very closely, rather finely, and evenly punctate, interspaces 

 narrow, convex, and polished. Abdominal segments decreasing uniformly 

 and extremely gradually in width, first as wide as the contiguous elytra; 

 surface convex, evenly, rather coarsely, and moderately closely punctulate ; 

 transverse carinae tricuspid, middle cusps long and acicular, lateral one-half 

 as long, broad, truncate at tip. Legs dark piceous above, rufo-piceous be- 

 neath, rather short and stout; first joint of the posterior tarsi three-fourths 

 as long again as the second, and as long as the second and third together, 

 last joint longer than the first. 



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

 middle fourth, emargination evenly rounded, and ten times as wide as deep, 

 contiguous surface flattened throughout anteriorly, and bordered with long, 



