References
Books and Journals
Krasnoff, S.B. and Roelofs, W.L. 2008. Evolutionary trends in the
male pheromone systems of
arctiid moths: evidence from studies of courtship in
Phragmatobia fuliginosa and Pyrrharctia
isabella (Lepidoptera: Arctiidae). Zoological
Journal of the Linnean Society 99:319-338.
Kuharsky, D. and Layne, J. 2000. Triggering of cryoprotectant
synthesis in the woolly bear
caterpillar (Pyrrharctia
isabella Lepidoptera: Arctiidae). Journal of Experimental
Zoology
286:67-371.
Layne, J.R., C.L. Edgar, and R.E. Medwith. 1999. Cold Hardiness
of the Woolly Bear Caterpillar
(Pyrrharctia isabella
Lepidoptera: Arctiidae). American Midland Naturalist 141:
293-304.
Marshall. KE. And Sinclair, BJ. 2011. The sub-lethal effects of
repeated freezing in the woolly
bear caterpillar Pyrrharctia
isabella. The Journal of Experimental Biology 214:1205-1212.
Singer, M. 2003. Determinants of polyphagy by a woolly bear
caterpillar: a test of the
physiological efficiency hypothesis. Oikos
93:194-204.
Online Sources
Almanac 2013. <www.almanac.com/content/predicting-winter-weather-woolly-bear-
caterpillars>.
Accessed 8 April 2013.
Bold Systems 2012. <www.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=14791>.
Accessed 9 April 2013.
Bug Guide 2013. <bugguide.net/node/view/539>. Accessed 29 March 2013.
Encyclopedia of Life 2013. <eol.org/pages/863046/details#overview>. Accessed 6 April 2013.
National Geographic 2009. <http://news.nationalgeographic.com/news/2009/03/090313-self-
medicating-caterpillars.html?source=rss>.
Accessed 8 April 2010.
Ohio Department of Natural Resources.
<http://www.dnr.state.oh.us/kidsthings/sept05/tabid/543/default.aspx/>.
Accessed 30
March 2013.
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