EE Environmental Entomology is now published by Oxford University Press. It can be accessed from the locations listed below.

Effect of Regional Climate Warming on the Phenology of Butterflies in Boreal Forests in Manitoba, Canada
A. R. Westwood
Environmental Entomology(2010),39(4):1122
http://dx.doi.org/10.1603/EN09143

Oxford University Press BioOne