THE CLICK BEETLES. 



771 



ncath with a dense brush of hairs. The antenna} 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 ft oni the United States have been taken in Indiana. 



KEY TO INDIANA SPECIES OF MELANACTES. 



(/. Strife on disk of elytra not at all impressed, tlieir punctures very fine 

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

 intervals flat, very minutely and indistinctly punctulate. 



1470. PICEUS. 



an. Strife of elytra more or less impressed, the punctures more distinct and 

 not separated by more than their own diameters ; intervals distinctly 

 punctulate. 



7>. Elytral strife deeply impressed, coarsely punctate ; intervals strongly 



convex. 1471. MORIO. 



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



flat. 

 c. Thorax rather sparsely and finely punctured. 



14712. PUNOTICOLLIS. 



cc. Thorax very densely and coarsely punctured. 1473. CONSORS. 



1470 (4514). MELANACTES PICEUS DeGeer, Ins., IV, 1775, 102. 



Elongate, subdepressed. 

 Black, strongly shining ; 

 antemife and tarsi piceous. 

 Thorax a little longer than 

 broad, slightly narrowed 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 with 

 sides parallel to middle, 

 thence feebly n a r r owed 

 into a rounded a p e x. 

 Length 23-32 mm. 



T h r o u g h o u t t h e 

 State; scarce in the 

 northern counties ; fre- 

 quent in the southern 

 part, May 18-July 23. 

 Occurs beneath stones 

 and rubbish in dry lo- 

 calities. (Pig. 292.) 



mi 11. Fig. 292. Mdanactes piceus DeG. a, larva as seeH by day; />, sarr.e 



J lie S U p ]) O S e Cl larva, as seen by night; c, beetle; d, enlarged head and parts O f larva; e, en- 

 i o i , . larged leg of same. (After Riley.) 



when full grown, is 



