8 BULLETIN 263, U. S. DEPARTMENT OF AGRICULTURE. 
It is Tvidely distributed throughout the United States, but previous 
to its discovery on the cranberry it was not regarded as of economic 
importance. 
The number of its known food plants is few. 
The chief injury to the cranberry is produced by the feeding of the 
larvae on the roots. The beetles feed on the foliage and fruit. 
Its injury occurs mainly on sandy land or savannas, where the root 
system of the vines is not so extensive as on muck or peat bottoms. 
The beetles appear in numbers about the end of June, deposit 
eggs in the soil, and die before fall. 
The larvae feed on the fibrous roots and bark of the larger roots 
until late fall, when they hibernate in cells formed in the soil. 
Some spring feeding of the larvae occurs. 
Pupation commences early in June, the average duration of the 
stage being 14£ days. 
No satisfactory practice in the use of the whiter no wage or the 
spring reflowage to exterminate an infestation of larva? or pupae has 
been developed. 
Invigorating the vines by the application of fertilizers or sand prom- 
ises excellent results. 
LITERATURE CITED. 
Olivier, A. G. 
1808. Entomologie, ou Histoire Xaturelie des Insectes . . . Coleopteres. v. 6, 
p. 886, pi. 2, fig. 15. Paris, 1808. 
Say, Tsomas. 
1824. Descriptions of coleopterous insects collected in the late expedition to 
the Rock}- Mountains . . . In Jour. Acad. Nat. Sci. Phila., v. 3, p. 
403-462, 1824. 
Coles pis pretexta. p. 442. 
Sat, Thohas. 
1859. Complete Writings on the Entomology of Xorth America, edited by John 
L. Le Conte, v. 2, p. 211. New York, 1859. 
Horx, G. H. 
1892. The Eumolpini of boreal America. In Trans. Amer. Ent. Soc, v. 19, 
p. 195-234, July, 1892. 
Blatchley, W. S. 
1910. The Coleoptera or beetles of Indiana (Indiana Dept. Geol. •and Nat. 
Resources, Bui. IV p. 1147. Indianapolis, 1910. 
Smith, J. B. 
1910. Annual Report of the Xew Jersey State Museum Including a Report of 
the Insects of New Jersey — 1909, p. 344. Trenton, 1910. 
Systematic list. 
QUAIXTAXCE, A. L. 
1912. [Rkabdopterus picipes Olix.] In Proc. Ent. Soc. Wash., v. 14. p. 212, 1912. 
SCAMMELL, H. B. 
1914. Cranberry insect investigations in 1914. In Proc. Amer. Cranberry 
Growers' Assoc, 45th Ann. Conv.. Aug. 22. 1914, p. 12-17. 
WASHINGTON I GOVERNMENT PRINTING OEFICE ; 1915 
