Scarabaeidae of Nebraska 105 



Dipiotaxis harperi Blanchard. 



1850. Dipiotaxis harperi Blanchard, Cat. de la coll. ent. Coleop. 

 Mus. d'hist. nat. de Paris, p. 171. 



Specimens examined: 17, from Omaha, Nebraska 

 City and Lincoln, collected from April 30 to August 29. 

 Harperi is an abundant and widely distributed species, 

 especially through the eastern and southern states. 



Diazus Le Conte 



1859. Le Conte: "Coleoptera of Kansas and New Mexico," Smith- 

 sonian Contributions to Knowledge, xi, p. 9. 



Diazus rudis Le Conte. 



1859. Diazus rudis Le Conte, Col. Kan. and N. M., p. 9. 



Specimens examined : 10, from the Pine Ridge region, 

 Mitchell, Haigler, Culbertson and Halsey, collected from 

 July 3 to 20. 



Phyllophaga Harris 



The species of this genus are commonly known as "June 

 bugs" or May beetles, and their larvae are called white 

 grubs. Both the beetles and their larvae are highly de- 

 structive to cultivated plants. This is more especially true 

 of the larvae which burrow in the soil and feed heavily up- 

 on roots. They are difficult to combat, and their long life 

 of two or three seasons renders them especially trouble- 

 some. The beetles do some damage as defoliators, collect- 

 ing upon trees, shrubs and herbaceous plants in consider- 

 able numbers at twilight and gorging themselves with food 

 until nearly daybreak, then they disperse and seek shelter, 

 burying themselvs an inch or so in the soil. 



1826. Harris: Massachusetts Agricultural Journal and Reposi- 

 tory, X, p. 6. 



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

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

 (Descriptive notes on 55 species.) 



211 



