Lakes Michigan and Huron limit gene flow between the subspecies of the butterfly Limenitis arthemis. Canadian Journal of Zoology. 66:1790-1795.. 1988.
Experimental field demonstration that two aposematic butterfly color patterns do no confer protection against birds in northern Michigan. The American Midlands Naturalist. 118:145-152.. 1987.
Adult emergence in two univoltine Callosamia promethea populations: preponderance of the early emerging morph in the north and of the late emerging morph in the south (Lepidoptera: Saturniidae). Great Lakes Entomologist. 18:139-142.. 1985.
Melanistic males of Callosamia promethea (Lepidoptera: Saturniidae). Great Lakes Entomologist. 18(4):143-144.. 1985.