THE DARKLING BEETLES. 1-59 



punctate aud with a rmiucled elevation above the base of auteuna3. Thorax 

 twice as wide as long,^aI)i-ui>tly narrowed each side in front of hind angles, 

 the latter acute; margins distinct, reflexod; surface coarsely and rather 

 sparsely punctured. Elytra \^ith coarse, deep, irregular punctiu-es. Length 

 r)-5.5 mm. 



Throughout the State; fre<Rient in sandy localities beneath bark, 

 logs and stones. Hibernates. j\ larch 19-December 25. 



XVI. Paeatenetus Spin. 1844. (Gr., "close together + to ex- 

 tend.") 



Small, oval conve.x brownish species, easily known by the char- 

 acters given in key. The thorax is narrower than the elytra and 

 has the side margins distinctly toothed. Two species are known 

 from the State, while another may occur. 



KEY TO INDIANA SPECIES OF PAKATENETUS. 



a. Sides of thorax with five to seven teeth ; elytra moderately cunvex. 

 h. Sides of thorax rounded in front, gradually narrowing behind the 

 middle. punctatus. 



bb. Sides of thorax strongly rounded from the front to the hind angles. 



2327. Fuscus. 

 ««. Sides of thorax with three teeth; elytra strongly convex. 



2.328. GIBBIPENNIS. 



P. puncfalus Spin., reddish-brown, length 3-4 mm., occurs in 

 the Bliddle and Eastern States, and has been recorded from Cin- 

 cinnati. 



2o27 (7491). r'AKATENETUS Fusci's Lec, Agass. Lalu^ Sup., is.io. 22:!. 



IClougate-oval, convex. Dull reddish-brown, sparsely clothed with tine, 

 silliy, yellowish iiubescence; club of antennre piceous. Thorax slightly 

 broader than long, convex; surface, as well as that of head, co.irsely. 

 densely and confluently punctured. Elytra with sides parallel for three- 

 fourths of their length, thence rounded to apex; surface coarsely, densely 

 and irregularly punctured. Length 2-2.5 mm. 



Southern half of State; scarce. :May 11-June 20. Taken by 

 sifting dry leaves. Its range is given as "Canada and the States 

 bordering the Great Lakes." 



2.328 ( ). Paratenetus gibbipennis Mots., Bull. Mosc, 1868, 193. 



Narrowly oval, strongly convex. I'iceous or darlv reddish-brown, sparse- 

 ly pubescent; anleima- and legs paler. Thorax convex, sides rounded on 

 apical two-thirds, parallel and a little narrowed toward the base; margins 

 each with three blunt teeth near middle ; surface very coarsely and densely 

 punctate. Elytra v.ery strongly convex or gibbous; surface coarsely and 

 rattejr closely punctajr. Length 2-2.5 mm. 



