ARACEAE 
Dracunculus. Meeuse, B. J. D. and M. H. Hatch. 1960. Beetle pollination 
in Dracunculus and Sauromatum. Coleopterists! Bul. 14:70-74. 
Sauromatum. See Dracunculus. 
Symplocarpus foetidus. Judd, W. 1961. Insects and other invertebrates 
associated with flowering skunk cabbage, Symplocarpus 
foetidus (L.) Nutt., at Fanshawe Lake, Ontario. Can. mnt. 
93(4) 241-249. 
ASCLEPIADACEAE 
Asclepias pulchra & syriaca. Weiss, H. B. and E. L. Dickerson. 1921 
(1922). Notes on milkweed insects in New Jersey. N. Y. mt. 
Soce Jour. 29:123-145. 
BETULACEAE 
Betula. Dimmock, A. K. 1885. The insects of Betula in North America. 
Psyche 4:271-286. 
BROMELIAC EAE 
Tillandsia usneoides. Rosenfeld, A. H. 1911. Insects and spiders in 
Spanish Moss. Jour. Econ. Rt. 4:398-409. 
CACTACEAE 
Cereus giganteus. Hubbard, H. G. and E. A. Schwarz. 1899. Insect fauna 
of the giant cactus of Arizona: letters from the Southwest. 
Psyche 8 (suppl. 1):1-14. 
Miscellaneous. Hunter, W. D., F. C. Pratt, and J. D. Mitchell. 1912. 
The principal cactus insects of the United States. U. S. Bur. 
Ent. Bul. 113:1-71. 
Opuntia. Hamlin, J. C. 1926. Biological notes on important Opuntia 
insects of the United States. Pan-Pacific Mnt. 2(3):97-105. 
Opuntia. Hamlin, J. ©. 1932. An inquiry into the stability and 
Testriction of feeding habits of certain cactus insects. [nt. 
Soc. Amer. Ann. 25(1):89-120. 
CHENOPODIACEAE 
Beta vulgaris. Bruner, L. 1891. Report on Nebraska insects: beet insects. 
U. Se Bur. Ent. Bul. 23(0.s.) 311-18. 
COMPOSITAE 
Ambrosia trifida. Hack, Lewis. 1934. Insects of the giant ragweed 
(Ambrosia trifida Linn.) Master's thesis, University of 
Kansas. 
