1260 FAMILY LV. TENEBRIONID.E. 



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

 from sphagnum moss about the margins of marshes. 



Prateus fusculus 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; antenna 3 more or less thickened 

 towards the tip ; elytra with narrow epipleunv ; front coxa? trans- 

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

 neath. Six of the ei'ht genera are represented in the State, while 

 a member of another may occur in the northern third. 



KEY TO INDIANA GENERA OF DIAPERINI. 



. Body broadly oval or elongate-oval ; pygidium covered. 

 1). Eyes eniarginate in 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. 



<1. First joint of hind tarsi not longer than second and third to- 

 gether ; form elongate-oval ; length 3-3.5 mm. 



XVIII. ARRHENOPLITA. 



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

 c. Epipleime entire ; process between the hind coxre acute. 



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. PHYLETHI'S. 

 cc. Epipleura 1 short: intercoxal process truncate; thorax narrower 

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



SCAPHIDEMA. 



l>1>. Eyes not emarginate; last five joints of antemi;e forming a loose 

 club; length less than 3 mm. XXI. PENTAPHYLU s. 



an. I.ody cylindrical: pygidium exposed: length less than 4 mm. 



XXII. HYPOPHLUSUS. 



XVTT. DTAPERIS Goeff. 1762. (Gr., "through + to pass.") 



To this genus as limited above belong two species, one of which 

 is common in the State. 



