THE SHININO FUNGI'S BEETLES. 493 



enlarged, forming ;i loose, slender dub; scutellum usually wanting 

 but when present broadly triangular. r riiii-1een nominal .species 

 from the I T nited States are recognized by Casey. Of these six are 

 known from Indiana. 



KKY TO l.MIIAMA Sl'KCIKS OK I!.KO( T.KA. 



a. Scutellum not visible. 



b. Larger species, not less than 1! nun. in length. 



c. Sides of thorax feebly and evenly curved when viewed from the 



side; basal marginal stria of elytra entire. 



(1. Third antenna 1 joint very long, slender, subequal to fourth; ely- 

 tra sparsely but distinctly punctate. 943. CONCOLOR. 

 d<L Third joint much shorter and thicker; form less broadly oval; 

 elytra smooth. 944. CONGENER. 

 cc. Sides of thorax strongly bent downward behind the middle; basal 

 stria of elytra broadly interrupted; third antennal joint long and 

 slender. 94.~i. DEFLEXA. 

 1)1). Smaller species, never much exceeding \.~\ mm. in length; narrowly 



oval; third antennal joint not longer than fourth. 

 c. Elytra not punctate. 



f. Length l.G mm.; epimera of inesosternum extending two-thirds 



to COXfe. SPECULIFER. 



//. Length not over 1... mm.; mesosternal epimera longer and nar- 

 rower. 94(>. APICALIS. 

 <<. Elytra sparsely, coarsely and shallowly punctate. 



947. PUNCTIPENNIS. 



(id. Scutellum visible, very minute and transverse; length less than 1.3 mm. 



ff. Hind angles of thorax normally acute; color reddish-brown to pic- 



eous. 948. PICEA. 



gy. Hind angles of thorax obtusely truncate; color deep black. NANA. 



943 (2978). B,EOCERA CONCOLOR Fab., Syst. Eleut.. II, 1801. r>7<5. 



Oblong-oval, broad, strongly convex. Black, high- 

 ly polished; legs, antenna? and tips of elytra and ab- 

 domen reddish-pieeous. Thorax three-fourths wider 

 than long, apex one-third as wide as base. Scutellum 

 wanting. Elytra barely as long as wide, scarcely 

 twice as long as thorax, broadly truncate at apex; 

 sparsely and coarsely punctate. Length '2.1 mm. (Fig. 

 175.) 



Throughout the State; frequent. March 25- 

 September 25. Occurs on fungi. 



Fig. 175. X 10. (Original;) 



944 (9S54). B.EOCERA CONGENER Casey, Ann. N. Y. Acad. Sci., VII, 1893. 



517. 



Rather stout, oval. Black ; legs and antenna? pale reddish-brown. An- 

 tenme shorter than head and thorax, third joint much shorter than second, 

 three-fourths the length of fourth. Thorax and elytra much as in con-color, 

 from which it differs chiefly by its smaller size and antennal structure. 

 Length 2 mm. 



