86 R. W. Dawson 



to Fort Craig, New Mexico", Trans. Amer. Ent. Soc, ii, pp. 

 49-59. (Notes and table for 10 species). 



1876. Horn: "Revision of the United States Species of Ochodaeus 

 and other Genera of Scarabaeidae", Trans. Amer. Ent. Soc, 

 V, pp. 179-197. (Descriptive notes and table for 8 species). 



1909. Fall: "A Short Synopsis of the Species of Ochodaeus In- 

 habiting the United States", Journ. N. Y. Ent. Soc, xvii, pp. 

 30-38. (Descriptive notes and table to 19 species). 



SYNOPSIS OF THE SPECIES 



1. Front with an acute horn or tubercle inandibidaris 



Front without an acute tubercle 2 



2. Apical angles of elytra slightly produced or dentiform; upper 

 tooth of front tibiae nearer to the middle tooth than to the 

 base 3 



Apical angles of elytra not at all produced musculus 



3. Vertex of male with a transverse ridge; frontal margin not 

 acutely tuberculate ..kansanus 



Vertex of male without a transverse ridge; frontal margin 

 elevated on each side into a small tubercle [bia7~matus} 



Ochodaeus musculus Say. 



1835. Odontaeus musculus Say, Boston Journ. Nat. Hist., i, p. 178. 

 Le Conte ed., ii, p. 51. 



1910. Ochodaeus musculus Blatchley, Coleoptera of Indiana, p. 935. 



Specimens examined : 1 5 , 5 9 , from Mitchell and Mon- 

 roe Canyon in Sioux Co., collected during July at lights. 

 Musculus is probably not confined to western Nebraska even 

 though there are no specimens at hand from other parts of 

 the state. 



Ochodaeus kansanus Fall. 



1909. Ochodaeus kansanus Fall, Journ. N. Y. Ent. Soc, xvii, pp. 31, 

 34. 



Specimens examined: 1$, 2$, from Mitchell, taken at 

 lights July 24-29, 1916, by C. E. Mickel. 



192 



