15 
Pinus ponderosa v. jeffreyi. Lange, W. He. 1937. An annotated list of 
the insects, mostly Coleoptera, associated with Jeffrey pine 
in Lassen National Forest, California. Pan-Pacific Int. 
13(4) 3172-175. 
Pinus resinosa & strobus. Thomas, J. Be 1955. Notes on insects and other 
arthropods in red and white pine logging slash. Can. It. 
87 (8) 2338-344. 
Pinus strobus. See Miscellaneous. Taylor, 1928. 
Pinus sylvestris. See Miscellaneous. Taylor. 1928. 
Pinus virginiana. Howden, H. F. and G. Be. Vogt. 1951. ‘Insect communities 
of standing dead pine (Pinus virginiana Mill.) Ent. Soc. 
Amer. Ann. 44(4) 2581-595. 
Pinus. Ramsey, Helen. 1941. Fauna of pine bark. Hlisha Mitchell Sci. 
Soc. Jour. 57:91-97. 
Pinus. Savely, H. E. 1939. Ecological relations of certain animals in 
dead pine and oak logs. Ecol. Monog. 9(3):323-385. 
Pinus. Struble, G Re 1930. The biology of certain Coleoptera 
associated with bark beetles in western yellow pines. Calif. 
Univ. Pubs. Ent. 5:105-134. 
Pinus spp.e Thatcher, Robert C. 1960. Bark beetles affecting southern 
pines: a review of current knowledge. Occasional paper 180 
So. For. Exp. Sta., U.S.DeA. 25 pp. 
Pseudotsuga menziesii, Bedard, W. D. 1938. An annotated list of the 
insect fauna of Douglas Fir (Pseudotsuga mucronata Rafinesque) 
in the Northern Rocky Mountain Region. Can. Ent. 70(9):188- 
197. 
Sequoia and Sequoiadendron. Deleon, Donald. 1952. Insects associated with 
with Sequoia sempervirens and Sequoia gigantea in California. 
Pan—Pacific Ent. 28(2):75-91. 
PONTEDERTAC EAR 
Pontederia cordata. Hazen, T. E. 1917. The trimorphism and insect 
visitors of Pontederia. Torrey Bot. Club Mem. 17:459-484. 
RANUNCULACEAE 
Ranunculus. Linsley, E. G. and J. W. Mac Swain. 1959. Ethology of some 
Ranunculus insects with emphasis on competition for pollen. 
Calif. Univ. Pubs. Mt. 16(1):1-45. 
