|scientific name Greya obscuromaculata |
Moist coniferous forest (Pellmyr 2000).
The only Alberta record is from mid-July (Davis et al. 1992).
Davis et al. (1992) give a detailed description of this species; Adults have a wingspan of 13-17 mm, with males slightly larger.The forewing is white to pale ochreous, irregularly marked with pale brown to dark fuscous, darker and checkered in female, with an irregular zigzag band across the middle. The hindwing is gray, and the thorax is white to pale ochreous and white dorsally, and white ventrally. The legs are brownish. The head is white to pale ochreous, with the antennae 0.4-0.6 times the length of the forewings and 28-34 segmented. Maxillary palpus and labial palpus white to pale ochreous, apical segment of labial palpus sometimes brownish. The abdomen is pale fuscous to brown dorsally, ochreous to white ventrally. The apex of the female ovipositor is acute and smooth. Males have a shallowly-lobed uncus, valva broad at base, and slender pollex. The immature stages are unknown.
Unknown. Females can be found resting on Osmorhiza chilensis (Apiaceae) and Tiarella trifoliata (Saxifragaceae) in the Pacific Northwest, so these may be hostplants (Pellmyr 2000).
In Alberta, known only from Waterton Lakes in the southwest mountains (Davis et al. 1992). Also occurs in southern B.C., Washington, Idaho and Montana (Pellmyr 2000).
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