52 INSECTS AFFECTING STOKED PRODUCTS. 
hydroeyanic-acid gas. and other fumigants will destroy this insect 
in the same manner as they kill the lesser grain-borer, grain weevils, 
grain beetles, and flour beetles. 
BIBLIOGRAPHY. 
1. Horn, G. H. — Proceedings of the American Philosophical Society, vol. 17, p. 
550, 1878. 
Technical description as Dinoderus truncatus n. sp. from two specimens of 
presumably accidental occurrence in California. 
2. Riley. C. V.— Insect Life, Div. Ent. U. S. Dept. Agr.. vol. 6, p. 219. February 
28, 1894. 
Mention as Dinoderus sp. from material collected by the writer at tbe World's 
Columbian Exposition, 1892-93. 
3. Chittenden, F. H— Insect Life. Div. Ent.. U. S. Dept. Agr., vol. 7, p. 327, 
March 29, 1895. 
The species identified by material found in grain from tbe Mexican and Gua- 
temalan exbibits at tbe World's Columbian Exposition, 1892—93. 
4. Chittenden, F. H.— Technical Series 4. Div. Ent.. U. S. Dept. Agr . p. 28. 1896. 
Some additional notes are given on tbe occurrence of this species in Mexico. 
5. Lesne, P. — Annales cle la Societe Entoinologiqne de France, vol. 66, pp. 342, 
343, figs. 14&. 25. 26, 189S. 
Technical description and assignment of tbe species to Prostephanus n. gen. 
O 
