388 AMERICAN PACHYBRACHYS (cOLEOPTERa) 



of the prothorax are more completely ]iunc'tured here than in 

 relictus, which has a fairly well defined smooth margin, and the 

 front claws of the male are possibly a trifle larger, though small 

 in both. The relation of confederatus to tyheensis is about equally 

 close and the tabular characters seem to offer the only means of 

 separation. 



72. Pachybrachys tybeensis new species 



Yellow, with reddish brown to dark brown punctures and 

 indistinct markings; front between the eyes rather narrow, ocular 

 lines wanting; front claws of male not enlarged. Ave. length 3 

 mm. Tybee Island, Georgia. 



Head not wider than the thoracic apex (slightly so in one female), front 

 moderately closely punctate, markings somewhat diffuse. Eyes separated in 

 the male by a distance which is much less than the vertical width of their upper 

 lobes, and exceeds but slightly the length of the basal antennal joint; in the 

 female by a distance subecjual to the width of their upper lobes and about one 

 and two-thirds times the length of the basal antennal joint. Antennae very 

 slender, outer joints more or less dusky, in the male fully three-fourths as long 

 as the body, in the female but little more than half the length of the body, the 

 tenth joint more than three times as long as wide in the male, a little shorter 

 in the female. 



Prothorax distinctly arcuately narrowed in front, widest just before the base, 

 punctuation dense, rather coarse, with scattered small, smooth, more convex 

 spots; side margins only very narrowly and incompletely smoother; markings 

 red-brown, broad, very diffuse. 



Elytra confusedly punctured in a rather narrow baso-sutural ai'ea, elsewhere 

 with the punctures in broken or irregular series, of which the second and third 

 are sometimes fairly regular, and the seventh and eighth and apical portions 

 of the others are moderately impressed and distinct, marginal interspace with 

 a few coarse punctures behind the subhumeral interruption; shield small but 

 convex and distinct; markings rather light and diffuse, the standard spots 

 rather indistinct, especiall}^ the inner series, which may be in part or entirely 

 lacking. 



Pygidium rufo-testaceous, darker at base, apical parts paler, the spots some- 

 times evident, but usually vaguely diffuse. Body beneath brown or fuscous, 

 sides and apex of abdomen more or less evidently paler. Legs yellow with 

 median darker femoral and tibial bands. 



Length 2.8 to 3.25 mm.; width 1.5-1.75 mm. 



Distribution. — Georgia: Tybee Island, July 2 to 6 (Wenzel), type cT. 



This species bears a certain resemblance to some examples of 

 characteristicus and JentoraUit^. It differs from the former in its 

 less broadly diffuse ])unctuation and better defined elytral striae, 

 and from both by the more approximate eyes and small front 



