TUB ANT-LOTING BEJJTLES. 331 



ata Lee, brownish-yellow, legs and antennae paler, pubescence 

 feeble, length 1.2 mm., is known from the Middle and Southern 

 States. 



XVII. EuPLECTUs Leach. 1817. (Gr., "good + fold.") 

 Depressed, linear; abdomen with three basal segments equal in 

 length, the fourth prolonged, the border wide; ventrals six in fe- 

 male; seven, the last one earinate, in male: The following species 

 have been taken or may occur in the State : 



KEY TO INDIANA SPECIES OF EUPLECTUS. 



a. Head narrower than thorax; first and second dorsal segments with 

 short carinas; elytra convex; sutural lines deeply impressed, discal 

 ones half the length of elytron. 625. fossulatus. 



aa. Head as mde as or wider than thorax. 



6. Fovea; of head widely distant, situated behind the middle ; body less 

 slender, more convex, 

 c. Head not wider than thorax ; shoulders wider than head or thorax. 

 d. Sides of elytra nearly straight, divergent; sides of thorax broad- 

 ly and evenly curved ; pubescence feeble ; length 1.2 mm. 



SPINIFEE. 



eld. Sides of elytra curved; those of thorax sinuate behind middle; 

 length 1.5 mm. inteeruptus. 



cc. Head wider than thorax. 



c. Shoulders wider than head, thorax narrower, as wide as long; 



base of abdomen naiTower than elytra. congener. 



ee. Shoulders as wide as head; sides of elytra parallel; form linear, 



subdepressed ; head not punctured. linearis. 



1)1). Foveas of head smaller, much nearer together, situated in front of 



middle ; head strongly punctured. 626. confluens. 



625 (9442). Euplectus fossulatus Brend., Bull. Lab. Nat. Hist. Iowa, II, 

 1891, 59. 

 Dark brown, shining, sparsely pubescent. Head wider than long, de- 

 pressed in front ; occiput convex between the foveoe. Antennae as long as 

 head and thorax; joints three to eight very small, wider than long; ninth 

 and tenth each one-half wider than the one preceding; eleventh oval- 

 acuminate, longer than ninth and tenth together. Thorax wider than long; 

 disk minutely punctate and with a large fusiform median sulcus, which ends 

 behind in a deep triangular fovea, the latter connected by a deep groove 

 with a large fovea each side. Elytra with humeri high and prominent; 

 each with three basal punctures. Length 1.2 mm. 



Lawrence and Crawford counties; rare. May 11-May 27. 

 Taken by sifting. Casey places this under Thesiastes but the two 

 basal segments of abdomen are distinctly earinate as described by 

 Brendel, 



