THE I,AMKIJ,T('(>RN BEETLES. 935 



sparsely punctate with finer puucfures intermingled. Elytra as wide at 

 base as thorax, with a distinct tooth on each liuinenis ; strhe deep and sub- 

 crenately punctate ; intervals nearly flat, sparsely and finely punctate. Length 

 7-9 mm. 



Orange County; scarce. September 9. 



A. hnmeralis Lee., black, shining, elytra! stria 3 fine with large 

 round distant punctures, is known from Detroit, Michigan, and 

 Maryland. 



Tribe III. ORPHNINI. 



This tribe is represented in the United States by a single genus 

 comprising oval, convex species, covered above with short, erect 

 hairs. They have the mandibles and labrum of horn-like texture, 

 not covered by the clypeus, which is not expanded as in the two 

 preceding tribes; antenna 1 10-jointed, club three-jointed; eyes not 

 emarginate; front coxa^ prominent; middle coxie oblique, contigu- 

 ous; elytra striate. covering the abdomen; ventral segments six, 

 not firmly united; tarsi with a small setae-bearing process between 

 the claws. The principal papers treating of the North American 

 species are as follows: 



Horn. "Ochodanis Synoptical Table of," in Trans. Amer. 

 Ent. Soc., II, 1868, 50-52. 



Horn. "Revision of the II. S. Species of Ochodanis and other 

 Genera of Searabajidae, " in Trans. Amer. Ent. Soc., V, 1876, 

 177-197. 



XI. OCHODJEUS Serv. 1827. (Gr., "to carry + tooth.") 



To this genus, as characterized above, belong eight species, only 

 one of which occurs east of the Mississippi. 



1767 (5578). OCHOD^EUS MUSCULUS Say, Bost. Jouru. Nat. Hist., I, 1835, 



178; ibid. II, 652. 



Oval, convex. Uniform reddish- or chestnut-brown, sparsely clothed 

 with short erect hairs. Head coarsely punctured; clypeus with a double 

 margin, the upper one forming a curved carina ; vertex with a feeble trans- 

 verse carina. Thorax three times as wide as long, sparsely punr-tured in 

 male, more densely in female; a rounded impression on the middle of each 

 side. Elytral striaB rather closely punctured ; intervals subconvex, each 

 with two or three irregular rows of small punctures. Length 5 -<> mm. 



Two specimens from near Hessville, Lake County. June 13- 

 June 17. Say described the species from a single female taken near 

 New Harmony, Posey County. Horn records it from Michigan, 

 Dakota and Nebraska. 



