Scarabaeidae of Nebraska l-jo 



Euphoria pilipennis Kraatz. 



1883. Stephanucha j^iUpennis Kraatz, Berl. Ent. Zeitschr., xxviii, 

 p. 384. 



Specimens examined : 23 5 , 14 $ , from Lincoln, West 

 Point, Holt Co., Sand Hills, Halsey and Haigler, collected from 

 April 26 to September. In this species the elytra vary from 

 pure black to heavily and confluently maculated with fulvous, 

 and the pygidium may be either entirely black or with two 

 more or less well-marked, pale, tomentose areas. Pilipennis 

 is closely related to the eastern species areata, and may 

 possibly be only subspecifically distinct. 



Cremastochilus Knoch 



1801. Knoch: Neue Beytrage zur Insectenkunde, p. 115. 



1871. Horn: "Descriptions of new Coleoptera of the United 

 States, with Notes on Known Species", Trans. Amer. Ent. 

 Soc, iii, pp. 325-344. (Table for 12 species and 2 descrip- 

 tions). 



1880. Horn: "Monographic Revision of the Species of Cremasto- 

 chilus and Synopsis of the Euphoriae of the United States", 

 Proc. Amer. Philos. Soc, xviii, pp. 382-408. (Table and 

 descriptions for 17 species). 



1915. Casey: Memoirs on the Coleoptera, vi, pp. 340-370. (De- 

 scriptive table for 42 forms). 



SYNOPSIS OF THE SPECIES 



1. Reflexed rim of mentum deeply and broadly divided at the 

 middle behind retractus 



Reflexed rim of mentum entire behind 2 



2. Ventral surface of abdomen opaque, the first four segments 

 with nai'row yellowish margins, surface conspicuously pubes- 

 cent, the hairs short, very coarse, plumose and yellowish or pale 

 fulvous in color wheeleri 



Ventral surface more or less shining, hairs simple, often in- 

 conspicuous or wanting 8 



241 



