American Species of Dioryctria (Lepidoptera: Pyralidae): I. Western Canadian Species of the Zimmermani Group

Dioryctria tumicolella, from pine blister rust, Peridermium spp., swellings on Pinus ponderosa Lawson and Son in British Columbia, Washington, Montana, and Colorado; D. contortella, from Peridermium swellings on P. contorta Douglas in British Columbia, Alberta, and Washington; D. monticolella, from trunks of P. monticola Douglas in British Columbia; and D. banksiella, from trunks of P. banksiana Lambert in Alberta, Northwest Territories and eastward, are described as new species and distinguished from the western D. cambiicola (Dyar) and the eastern D. zimmermani (Grote).