938 FAMILY L. SOARABiBIDiE. 



XIV. ODONT.EUS Meg. 1821. (C4r., "a tooth.") 



Eyo.-i completely divided; middle coxae contiguous without a 

 tooth-like elevation on the process between them. The males have a 

 lonj;, slender, carved horn arising from the clypeus. Two of the 

 throe known North American species have been taken in the State. 



1770 (5502). Odont.eus fiucornis Say, Journ. Phil. Acad. Nat. Sci., Ill, 



1S23, 211 ; ibid. II, 136. 

 Briiiully (jval, convex-, rniforin pale ehestnut-browii, male ; browiiisli- 

 yc'llow, female. C'l.viien.s with a slender, curved, movable horn, lon^'ei' 

 than the greatest width of head. Thorax of male with a deep median 

 groove on basal two-thirds, a broad pit each side, bordered externally by a 

 sharp longitudinal ridge, the groove and pits sparsely and coarsely punc- 

 tured; female with median groove less wide and deep, the pits obsolete; 

 the sides more densel.\- and coarsely ijuuctured than in male. Elytra each 

 with 11 or 12 shallowly impressed, coarsely punctured strias. Length 6- 

 8.5 mm. 



Frequent about Hessville, Lake County; one specimen from 

 Vigo County. May 9-.luly 16. Occurs beneath logs and other 

 cover in sandy localities. 



1771 (5593). Odont^us coKNiGEHtJs Melsh., Proc. Phil. Acad. Nat. Sci., II, 



1844, 138. 

 Resembles flUcornis but larger and more robust. Horn of clypeus of 

 male stouter and not movable. Thorax of male with median groove shorter 

 and wider, the pits on each side very large, reaching nearly to base, their 

 outer margin not limited by a sharp ridge ; a stout reflexed horn in front 

 of each pit. Elytra as in flUoornis. Length 10 mm. 



One male from Yigo County. September 28. Taken from be- 

 neath a partly buried log in upland, sandy w^oods. Female not 

 seen and, as far as I can ascertain, not described. 



XV. Geotrupes Fab, 179S. (Gr., "the earth 4- bore.") 

 Medium-sized, broadly oval species, varying in color from black 

 to dark' metallic green or purple. They have the antennal club 

 small, with the plates of equal thickness. Some of them are very 

 common species, occurring under cow dung, in pastures, often bur- 

 rowing into the ground beneath. Of the 11 species known from 

 North America, three have been taken in the State, while another 

 doubtless occurs. 



KEY TO INDIAN.A. SPECIES OF QEOTErrES, 



u. Body above shining, more or less metallic; elytra distinctly striate. 

 J). Stri,x> of elytra without punctures; head without tubercles; basal 

 marginal line of thorax absent. semiopacus. 



