Scarabaeidae of Nebraska 119 



Specimens examined : 12 5,5$, from West Point, 

 Neligh, Thedford, and Sioux Co. This species is much 

 commoner westwardly, probably not occurring further to 

 the east than West Point. Its range as limited by Mr. 

 Casey extends over Nebraska, Kansas, Colorado and New 

 Mexico. 



Macrodactylini 



Front coxae conical and prominent; abdominal seg- 

 ments freely articulated ; labrum not connate with the cly- 

 peus; ligulae closely united with the mentum. 



Dichelonyx Harris 



1826. Harris: Mass. Agr. Repository, x, p. 6. 



1837. Kirby: Fauna Boreali-Americana, iv, p. 133. Ibid. Can. 

 Ent., iii, p. 211. 



1856. Le Conte: "Synopsis of the Melolonthidae of the United 

 States", Journ. Acad. Nat. Sci. Phila., (2), iii, pp. 225-288. 

 (Descriptive notes on 13 species). 



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

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

 V, pp. 177-197. (Table and descriptive notes for 15 species). 



1901. Fall: "Notes on Dichelonycha and Cantharis, with Descrip- 

 tions of New Species in Other Genera", Trans. Amer. Ent. 

 Soc, xxvii, pp. 277-310. (Table and descriptive notes for 25 

 species). 



1910. Blatchley: Coleoptera of Indiana, pp. 951-953. (Table and 

 descriptive notes for 6 species). 



SYNOPSIS OF THE SPECIES 



1. Clypeal angles rectangular; length 6-8 mm truncata 



Clypeal angles rounded; length 8-12 mm 2 



2. Margin of clypeus broadly reflexed; color uniformly testaceous 

 testacea 



225 



