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Scientific Name Ptilostomis ocellifera Habitat Cool spring stream, vernal pools and temporary creeks and lakes. Seasonality Adults fly from May though to September. Identification

Adult hindwings usually has a dark brown, angulated marking near the apex and the apical border is darker brown. In males, the cercus is long, slender, and deeply bifurcates to a pair of long, slender processes. The…

Adult hindwings usually has a dark brown, angulated marking near the apex and the apical border is darker brown. In males, the cercus is long, slender, and deeply bifurcates to a pair of long, slender processes. The dorsal process is distally rounded and the ventral process is acuminate (Wiggins, 1998).

Read More + Life History Annual? Conservation Most likely to be found in Alberta, otherwise common in the rest of North America. Diet Info Larvae are predacious during the later instars (LaFontaine, 1983). Range This species is transcontinental, ranging from Alaska to Great Bear Lake, south to California in the west, in the east, from Manitoba to Newfoundland (Wiggins, 1998).