THE DARKLING BEETLES. 



1253 



flexed; base sinuate, angles not prominent ; surfaee w, , co so and fine 

 punctures intermixed, the coene ones more numerous .„, the sides Elytia 

 Lie closely and densely punctate; intervals subeonvex, tmely and rathe, 

 densely punctulate. Leugtb 12-13 nun. 



Throughout the State; common beneath hark. Hibernates, 

 February 20 December 8. 



VII. Doliema Pasc. 1860. (dr., "insidious.") 

 Small, pale, very flat species having the antennse gradually 

 thickened towards the tip. The males have a small triangular horn 

 or tooth each side of the head in front of the eyes. One of the two 

 known species occurs in the State. 



2313 ( 7421). Doliema pallida Say. Journ. Phil. Acad. Nat. Set, HI. 1824, 

 271; ibid. II, 160. 



Oblong, parallel, much depressed. Pale reddish-brown. Head concave 

 between the eyes; clypetts eniarginate. Thorax obcordate much ,J -ed 

 behind the middle, apex broadly and deeply emargmate, front angles 

 otded hind ones rectangular; surface finely and sparsely paired and 

 with a short impressed line each side near base. Elytra with urns of mi 

 ante punctures, the side margins slightly elevated. Length 4.0-0 mm. 



Crawford County ; rare. September 8. Occurs beneath bark. 

 Resembles a Cueujid in form and general appearance. Listed as 

 Adeline, pallida. 



Tribe II. PEDININI. 

 Iu this tribe the body is oval, not very convex; front short and 

 broadlv dilated on the sides ; clypetts emargmate, covering the base 

 of mandibles; labium, prominent; elytra feebly embracing the sides 

 of abdomen; middle cox* with distinct troehantin; hind cox* well 

 separated- front and sometimes the middle tarsi of males dilated 

 and spongy beneath. But two of the six recognized genera are rep- 

 resented in the State. 



KEY TO INDIANA GENERA OF PEDININI. 



a. Eyes not entirely divided: mentum tri.ohed in 



„„. Eyes completely divided, the upper portion large, rounded: -"not 

 trilobed ; length less than 7 mm. 



VIII. Hopatrinus Latr. 1829. (Gr., < ' also + a senator.") 

 To this genus, as above limited, belong three species, one of 

 which occurs in Indiana. 



