Dioryctria westerlandi is a species of snout moth in the genus Dioryctria. It was described by Julian P. Donahue and Herbert H. Neunzig in 2002[1] and is known from the US state of California, but the range may extend into Nevada.[2]
The wingspan is 13.5-. Adults are pale with strongly contrasting transverse bands and reddish patches. Adults are on wing from July to October.
The larvae possibly feed on Pinus jeffreyi.