1260 FAMILY LV. — TENEBRIONID.T.. 



Starke and Steuben counties ; scarce. June 16-June 17. Sifted 

 from sphagnum moss al)Out the margins of marshes. 



Prateus fusciiJus Lee, piceous, shining, strongly punctured, 

 length 3.5 mm., ranges from New York to South Carolina and has 

 been recorded from Cincinnati. 



Tribe V. DIAPERINI. 



Oval or rounded winged species of medium or small size, having 

 the head received in the thorax as far as the eyes, which are trans- 

 verse and coarsely granulated ; front somewhat dilated at the sides, 

 covering the base of the mandibles ; antenn[E more or less thickened 

 towards the tip ; elytra with narrow epipleurre ; front coxae trans- 

 verse, middle ones with distinct troehantin; tarsi pubescent be- 

 neath. Six of the eight genera are represented in the State, while 

 a member of another may occur in the northern third. 



KEY TO INDIANA GENERA OF DIAPERINI. 



a. Body broadly oval or elonsate-oval ; pygidlum covered. 

 1). Eyes euiarginate iu front; length 3 or more mm. 



c. First joint of bind tarsi not longer than second ; body broadly oval, 

 strongly convex. XVII. Diaperis. 



cc. First joint of hind tarsi longer than second. 



d. First joint of hind tarsi not longer than second and third to- 

 gether ; form elongate-oval ; length o-P..5 mm. 



XVIII. Arrhenoplita. 

 dd. First joint of hind tarsi longer than second and third together. 

 c. Epipleurne entire ; process between the hind coxa? acnte. 



f. Last joint of maxillary palpi broadly triangular; body 

 broadly oval, strongly convex ; length 4 or more mm. 



XIX. Platydema. 

 ff. Last joint of maxillary palpi elongate triangular; form elon- 

 gate-oval : length less than 3 mm. XX. Phylethxts. 

 ee. Epipleurse short; intercoxal process truncate; thorax narrower 

 at base than elytra ; color greenish-bronzed, shining. 



SCAPHIDEMA. 



hh. Eyes not emarginate; last five joints of antenn.'p forming a loose 

 club; length less than 3 mm. XXI. Pentaphyllus. 



aa. Body cylindrical ; pygidium exposed ; length less than 4 mm. 



XXII. Hypophlceus. 



XVII. Dtaperts GoefP. 1762. (Gr., "through + to pass.") 



To this genus as limited al)ove belong two species, one of which 

 is common in the State. 



