614 PAMIIjY XXV. HISTERIDiE. 



III. TEiBALts P>ichs. 1834. (Gr., "worthless.") 



This genus contains two small, dull blackish, ovate species, hav- 

 ing the antennae inserted under the margin of the front, their 

 cavities at the front angles of thorax open both in front and on 

 sides. One of the two occurs in Indiana. 



1172 (3531). Teibalus amekkanus Lee, Bost. Journ. Nat. Hist. V, 1845, 



64, pi. IV, flg. 7. 



Broadly oval, convex. Black or piceous, feebly shining, densely punc- 

 tured. Thorax without striae. Elytra with four ill-defined dorsal strife, 

 the first and second apical, third and fourth basal. Pygidium and propy- 

 gidium finely and densely punctured, the former A-ertical. Length 2.."- 

 2.8 mm. 



Southern half of State; scarce April 2-1-1 une 16. Occurs be- 

 neath bark of hickoi-y, black gum and elm. 



IV. Epibrus Erichs. 1834., (Gr., "pleasing.") 



Small, oblong-oval forms, easily distinguished from Tribahis by 

 the distinct elytral strife. As there, the antennal cavity is partly 

 concealed by the pectoral plate and is open in front and on the 

 side. Our two species have all the dorsal strisE entire. 



1173 (3533). Epieeus ebgulaeis Beauv., Ins., 1805, 180. 



Oblong-oval, convex. Black, shining ; legs piceous. Thorax rather 

 sparsely punctate with larger and smaller punctures intermingled. Elytra 

 each with six entire punctured dorsal strise ; intervals sparsely and minutely 

 punctulate; subhumeral entire; epipleural fold coarsely punctured and with 

 two deep, distinct stria;. Length 2.5-3 mm. 



Throughout the State ; frequent. April O-September 10. Oc- 

 curs usually in fungi. 



*1174 (3535). Bpierus pulicaeios Erichs., Jahrb., 1834, 162. 



Oval, moderately convex. Dark reddish-brown or piceous, shining. 

 Thorax finely and sparsely punctured. Elytra with six entire dorsal striae ; 

 subhumeral entire. Bpipleura with one, fine stria. Length 1.5-2 mm. 



Southern half of State, common ; less so in the northern coun- 

 ties. February 23-October 4. Gregarious in winter beneath bark 

 and logs in low, moist ground. Easily distinguished from regu- 

 laris by the smaller size, lighter color and one stria of epipleura. 



V. Het^rius Erichs. 1834. (Gr., "friendship.") 



Readih' knoAvii l>y Ihc pcciiliai' lobe on each side of thorax. 

 Pour species arc listed from the Ifnitcd States, one of which occurs 

 in Indiana. 



