THE CLICK BEETLES. 



ncath with a dense brash of hairs. The antennas are serrate with 

 third joint usually a little longer than fourth and the hind angles 

 of thorax are prominent and strongly carinate. Four of the seven 

 species known from the United States have been taken in Indiana. 



KEY TO INDIANA SPECIES OF MELANACTES. 



a. StriiE on disk of elytra not at all impressed, their punctures very fine 

 and separated one from another by more than their own diameters ; 

 intervals flat, very minutely and indistinctly punctulate. 



1470. PiCEUS. 

 aa. Striae of elytra more or less impressed, the punctures more distinct and 

 not separated by more than their ovirn diameters ; intervals distinctly 

 punctulate. 

 6. Blytral striae deeply impressed, coarsely punctate; intervals strongly 

 convex. 1471. morio. 



66. Elytral strife feebly impressed, finely punctured ; intervals nearly 

 flat, 

 e. Thorax rather sparsely and finely punctured. 



1472. PUNCTICOLLIS. 



CO. Thorax very densely and coarsely punctured. 1473. consors. 



1470 (4514). Melanactes piceus DeGeer, Ins., IV, 1775, 162. 



Elongate, subdepressed. 

 Black, strongly shining ; 

 antennae and tarsi piceous. 

 Thorax a little longer than 

 broad, slightly narrovred in 

 front and at base of hind 

 angles ; sides feebly curved, 

 strongly margined; disk 

 finely, sparsely and shal- 

 lowly punctate, more dense- 

 ly at sides. Elytra vrith 

 sides parallel to middle, 

 thence feebly narrowed 

 into a rounded apex. 

 Length 23-32 mm. 



Throughout the 

 State ; scarce in the 

 northern counties ; fre- 

 quent in the southern 

 part. ]\Iay 18-July 23. 

 Occurs beneath stones 

 and rubbish in dry lo- 

 calities. (Fig. 29 2.) 

 The supposed larva, 

 when full grown, is 



Fig. 292. Melanactes pkeus DeG. — a, h 

 as seen by night; c, beetle; d, enlarged hei 

 iarged leg of same. (After Eiley.) 



