PTEROSTICHIN/E 389 



Body smaller, narrower and more convex 1 8 



1 8 Form ventricose, the hind body very much broader than the pro- 

 thorax. Black and shining, the legs black, with piceous tarsi; ely- 

 tra feebly iridescent; surface rather convex; head slightly elongate, 

 with long neck and large, rather prominent eyes, three-fourths as 

 wide as the prothorax; mandibles black, rufous distally except at 

 the extreme apex; labrum very dark, the palpi pale; antennae pice- 

 ous, rufous basally; prothorax a fourth wider than long, widest at 

 the middle, the sides subevenly, moderately arcuate to the basal 

 angles, which are minutely and abruptly prominent, not rounded; 

 margins narrowly reflexed, diaphanous posteriorly; apex sinuate, 

 with distinct angles and distinctly narrower than the base, which is 

 margined laterally; apical incised line very fine, obsolete medially; 

 impressions nearly obsolete; medio-subbasal punctures very few, 

 clustered in two groups; foveae moderate, linear, not attaining the 

 base; elytra less than one-half longer than wide, three-fifths wider 

 than the prothorax, parallel, rapidly obtusely rounded behind, the 

 sides more rounded basally; sinus moderate and short; striae not 

 very fine, feebly impressed, finely but strongly, closely punctate, 

 the seventh distinct to the base, though gradually finer; intervals 

 moderately convex. Length (9) 6.7 mm.; width 2.8 mm. Texas 

 (Galveston). A single example taken by the writer. 



parvicollis n. sp. 



Form more elongate, not ventricose, moderately convex 19 



19 Body moderately broad, polished, black; legs obscure rufous, the 

 hind femora alone blackish; elytra rather brilliantly iridescent; head 

 four-sevenths as wide as the prothorax, elongate, with moderate but 

 rather prominent eyes; mandibles obscure rufous, darker distally; 

 palpi pale; antennae slender, piceo-testaceous, paler basally; pro- 

 thorax not a fourth wider than long, widest slightly before the mid- 

 dle, the sides finely, diaphanously reflexed, subevenly and moder- 

 ately rounded, a little less so basally to the angles, which are very 

 minutely subprominent and not rounded, the sides coming upon 

 the base in distinctly more than a right angle; apex deeply sinuate, 

 with rather blunt angles, much narrower than the base, which is 

 finely margined except along the median sinus; apical incised line 

 distinct, entire and obtusely angulate; surface with very feeble 

 ruguliform transverse lines and nearly obsolete impressions; sub- 

 basal punctures distinct, sparse, and extending also outwardly along 

 the base; foveae rather long and deep, far from attaining the base; 

 elytra three-fifths longer than wide, barely a third wider than the 

 prothorax, gradually, then more rapidly, rounded posteriorly, the 

 sides rather arcuate; sinus unusually shallow; striae rather strong, 

 the punctures very fine and close-set, the seventh stria distinct to 

 the base, though becoming finer; intervals moderately convex. 

 Length (9 ) 9-5 mm.; width 3.35 mm. Indiana. . . .inquietus n. sp. 

 Body narrower but otherwise of the same habitus, similar in coloration 

 throughout, except that all the legs, with exception of the tarsi, are 

 piceous-black; hind trochanters and the hind femora, basally, rufous; 

 elytra similarly iridescent; head throughout almost as in inquietus 



