310 PROCEEDINGS OF THE NATIONAL MUSEUM vol. km 



Hall, M. C. 



1929. Arthropods as intermediate hosts of helminths. Smithsonian Misc. 

 Coll., vol. 81, No. 15, 77 pp. 

 Hardbnburg, C. B. 



1907. Comparative studies in the trophi of Scarabaeidae. Trans. Wis- 

 consin Acad. Sci. Arts Lett., vol. 15, pp. 548-602. 

 Hayes, W. P. 



1929. Morphology, taxonomy, and biology of larval Scarabaeoidea. Illi- 

 nois Biol. Monogr., vol. 12, pp. 1-119. 

 Hates, W. P., and Chang, Peh-I 



1947. The larva of Pleocoma and its systematic position (Coleoptera, 

 Pleocomidae). Ent. News, vol. 58, pp. 117-127. 

 Herbst, J. F. W. 



1789. Natursystem aller bekannten in- und auslandlschen Insekten . . . , 

 vol. 2, 330 pp. 

 Heymons, R., and von Lengerken, H. 



1929. Biologische Untersuchungen an Coprophagen Lamellicorniern. 

 Zeits. Morph. OkoL, vol. 14, pp. 531-613. 

 Horn, G. H. 



1868. Geotrupes of Boreal America. Trans. Amer. Ent. Soc, vol. 1, pp. 

 313-322. 



1870. Notes on some genera of coprophagous Scarabaeidae of the U. S. 



Trans. Amer. Ent. Soc, vol. 3, pp. 42-51. 



1871. Descriptions^ of ^new'^Coleoptera'of the U. S. with notes on known 



species. Trans. Amer. Ent. Soc, vol. 3, pp. 325-334. 

 1880. Contributions to the coleopterology of the U. S., No. 3. Trans. 

 Amer. Ent. Soc, vol. 8, pp. 144-145. 



1885. Synonymical notes. Ent. Americana, vol. 1, pp. 5-9. 



1888a. Review of the species of Pleocoma with a discussion of its systematic 

 position in the Scarabaeidae. Trans. Amer. Ent. Soc, vol. 15, 

 pp. 1-18. 

 1888b. [Systematic position of Pleocoma.] Proc Ent. Soc. Washington, 



vol. 1, p. 144. 

 1888c. Pleocoma, Lee, its systematic position and indication of new species. 



Ent. Americana, vol. 3, pp. 233-235. 

 1894. The Coleoptera of Baja Cahfornia. Proc. California Acad. Sci., 

 vol. 4, pp. 367-381. 

 HOWDEN, H. F. 



1952. A new name for Geotrupes (Peltotrupes) chalybaeus LeConte, with a 

 description of the larva and its biology. Col. Bull., vol. 6, pp. 

 41-48. 

 Jablonsky, C. G. 



1785. In Herbst, Natursystem aller bekannten in- und auslandischen 

 Insekten . . . , vol. 1, 310 pp. 

 Jekel, H. 



1865. Essai sur la classification naturelle des Geotrupes Latreille et des- 

 criptions d'espfeces nouvelles. Ann. Soc. Ent. France, vol. 5, pp. 

 513-618. 

 Jones, A. W. 



1886. Notes on Geotrupes opacus, Hald. Ent. Americana, vol. 2, p. 80. 

 KiRBT, W. 



1818. A century of insects, including several new genera described from 

 his cabinet. Trans. Linnean Soc. London, vol. 12, pp. 37&-478. 



