52 INSECTS AFFECTING STORED PRODUCTS. 
hydrocyanic-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. 
50, 1878. 
Technical description as Dinoderus truncatus n. sp. from two specimens of 
presumably accidental occurrence in California. 
Ritty, 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 the World's 
Columbian Hxposition, 1892-93, 
3. CHITTENDEN, IF’. H.—Insect Life, Div. Ent., U. S. Dept. Agr., vol. 7, p. 327, 
Mareh 29, 1895. 
The species identified by material found in grain from the Mexican and Gua- 
temalan exhibits at the World's Columbian Exposition, 1892-93. 
4, CHITTENDEN, I’. H.—Technical Series 4, Div. Ent., U. S. Dept. Agr, p. 28, 1896. 
Some additional notes are given on the occurrence of this species in Mexico. 
bo 
5. LesNr, P.—Annales de la Société Entomologique de France, vol. 66, pp. 342, 
343, figs. 14b, 25, 26, 1898. 
Technical description and assignment of the species to Prostephanus n. gen. 
O 
