THE GROUND BEETLES. 137 



Sides feebly curved, hind angles olitusf. . Elytra oval, more tban ime-lialf 

 wider than thorax, convex, faintly striate, tlie eighth stria entire; third 

 interval with three minute punctures. Length 2.3-2.7 mm. 



Southern half of State ; frequent. April 29-N()vember 28. Oc- 

 curs beneath rubbish in dry open woodlands. 



Tribe IX. AXCIIOXODERIXI. 



Head (ival or rounded, not prolonged or constricted to a narrow 

 neck; antenn.^' slender. Thorax more or less cordiform, the side 

 margins distinct and with a bristle-bearing puncture on each side 

 in front of the middle, and another near the hind angle. Elytra 

 feebly margined at base, rounded at apex, without dorsal punc- 

 tures in our species. Scutellum and scutellar .stria distinct. Body 

 al)ove pubescent. Hind coxa' contiguous. Two genera may occur 

 in Indiana, though representatives of but one have so far been 

 taken. 



KEY TO INDIA.XA OEi\KK\ OF A XCIIO.N'ODKKINl. 



(I. Antenna' ^^■ith four basal .ioinls glahrous. Thorax ovate, the second 



bristle-bearing puncture In front of the hiud an.gle; last .I'oint of palpi 



conical. EuPHORTicus. 



nil. .\nteuujip with three li;isal .ioinls glabrous. Thora.x ci>nlate. margin 



acute, the second puncture iu the hind angle. XXX\'. .Vikanus. 



Eiiplinrticus ijuhesvnis De.i., black, shining and 5 mm. in length, 

 has been taken by Dur>- near Cincinnati and doubtless occurs in 

 the southern third of the State. 



XXXV Atrant'S Lee. 1848. (Gr., "dull or indistinct.") 



This genus is represented in the Tjnited States by a single small 

 species having the thorax slightly broader than head ; eh'tra mar- 

 gined at base, the tips rounded and surface striate. 

 230 (845). Atkanis ptbescens DcJ.. Spec. Ill, 1827, 122. 



Elongate, slender. Blacls; or piceous; antennffi, mouth iiarts, legs and 

 abdomen pale reddish-brown. Thorax longer than wide, sides feebly curved, 

 hind angles and median impressed line distinct. Elytral stri.-e rather deep; 

 intervals <-onvex. each with two or three irregular rows of minute punc- 

 tures, liearing tine yellow hairs. Length (^-7.5 mm. 



Vigo, Knox and Posey counties; scarce. April 10-October 20. 

 Occurs beneath cover in open sandy woodland. Resembles I'lah)- 

 inin piisiUus very much in form, but darker in color and with the 

 clvtra rounded, not sinuate at tip. 



Tribe X. C'l^EXODAf'TYLIXI. 



Antenna" sleUder, base free, three basal jointjS i;ial)rous, first 

 ioint stoutei-, as long as the next two; joints three to 11, eciualor 



