476 AMERICAN PACHYBRACHYS (cOLEOPTERA) 



punctate, lustre dull; elytra semi-shining, more coarsely punctate, 

 the punctures serially or subserially arranged except in a baso- 

 sutural triangle. Ave. length 3.5 mm. Georgia. 



Head moderately punctate, ocular lines wanting, eyes separated in the female 

 by about twice the length of the basal antennal joint; antennae piceous to 

 brownish yellow, base and apex darker. 



Prothorax moderately transverse, widest and rather strongly rounded a little 

 in advance of the base, punctuation rather fine and sparse, sides with red mar- 

 gin narrower behind. 



Elytra robust, confusedly punctured baso-suturally, elsewhere with punc- 

 tures arranged in lightly to moderately impressed lines, which are more or less 

 sinuous or uneven medially; shield indistinct; marginal interspace punctured 

 in basal half. 



Legs black or nearly so throughout. 



Length 3.7 mm.; width 2.1 mm. 



Distribution. — Georgia: St. Catherine's Island, April 19 (Hubbard & Schwarz). 

 Two females only have been seen in addition to the Suffrian type kindly loaned 

 me by Dr. Taschenberg. The true dilatatus has hitherto remained completely 

 unknown in American collections although the name has in numerous collec- 

 tions been applied to specimens of subfasciatiis. 



158. Paehybrachys hepaticus Melsheimer 



Gray bro^vn, yello^v broAvn or brownish yellow, more or less 

 obscurely maculate or clouded with darker brown or fuscous, a 

 subapical sutural spot usually more or less conspicuous; integu- 

 ments densely diffusely punctate but shining, elytra with a more 

 or less distinct submarginal stria. Eyes small and very remote, 

 front without ocular lines; antennae short; front thighs not 

 stouter, tibiae completely unarmed at tip, front claws of male not 

 at all larger than those of the middle and hind feet. Ave. length 

 2.5 mm. United States and southern Canada. 



Head densely evenly punctate, eyes small, separated by one and one-half to 

 two times their own vertical length, nearly as widely distant in the male as m 

 the female. Antennae about half the length of the body in the male, scarcely 

 passing the hind angles of the thorax in the female, tenth joint scarcely twice 

 as long as wide. 



Prothorax moderately transverse, sides moderately arcuately convergent 

 from the base in the typical form, often widest more or less in front of the base 

 in southern and western specimens; jnmctuation dense and evenly distributed, 

 usually slightly sparser along the lateral margins; darker shadings obscure and 

 indefinite. 



Elytra more or less densely confusedly punctate, usually with a well defined 

 submarginal stria which is more or less impressed and occasionally with a sec- 

 ond fainter and incomplete stria interiorly adjacent; marginal interspace paler 

 yellow without shading, and varying from imjiunctate to numeroush' punc- 

 tured; shield wanting. 



