878 FAMILY XLHI. 



thickened and reflexed. Elytra punctate as mentioned in key, the intervals 

 with fine, confused punctures. Width of front of head less than the verti- 

 cal diameter of the eye in male ; a little greater in female. Length 2- 

 2.3 mm. 



Vigo and Orange counties ; scarce. May 14-June 1. Taken by 

 sweeping vegetation in low ground. Larger and a little stouter 

 than the next, always brown, never black as there, with the eyes 

 relatively larger and the front narrower than in the corresponding 

 sex of bistriatum. 



1666 (5283). PETALIUM BISTBIATUM Say. Journ. Phil. Ac-ad. Nat. Sci., V, 



1825, 172; ibid. IT, 281. 



Moderately elongate, sides parallel. Black or dark reddish-brown, feebly 

 shining, pubescence fine and sparse, legs and antennae usually paler. Tho- 

 rax with disk slightly elevated at middle, and with oblique impressions each 

 side ; front margin thickened and evidently reflexed, surface finely and 

 densely punctured, hind angles sharply defined. Elytral striae not impressed 

 except the two marginal ones, which are deeply so; intervals very finely 

 and sparsely punctulate. Length 1.7-2 mm. 



Throughout the State; frequent. June 1-July 12. Taken by 

 sweeping or beating low vegetation. 



XIII. EUPACTUS Lee. 1861. (C4r., "well + joined.") 



Elongate-oval, very convex species, either glabrous or with very 

 fine, short, appressed pubescence. Antennae 11-jointed, first joint 

 large, curved; second scarcely narrower and much smaller; third 

 much narrower, elongate-triangular; fourth to eighth as wide as 

 third; ninth much wider, compressed and equal to 3 to 8 united; 

 tenth and eleventh closely united, forming an oblong mass, rounded 

 at apex. Thorax narrowed in front, deeply excavated beneath, 

 side margins very narrow, not visible from above; elytra irregularly 

 punctate, very rarely with discal strifp; first ventral segment deeply 

 excavated throughout, segments 2 to 4 gradually decreasing in 

 length, fifth longer. 



1667 (5286). EUPACTUS NITIDUS Lee., Proc. Phil. Acad. Nat. Sci., 1865, 236. 



Elongate-oval, strongly convex, not quite twice as long as wide. Black 

 or dark reddish-brown, polished, surface entirely glabrous. Thorax strongly 

 narrowed in front, sides nearly straight; punctuation simple, sparse and 

 rather fine on disk, closer and coarser on sides. Elytra wholly without 

 striae. Last ventral segment with a deep marginal impressed line or groove. 

 Length 2-3 mm. 



Knox and Posey counties; rare. July 2 Inly ?>. 



