Adult caddisflies resemble small moths with hair-covered wings held tent-like over their back when at rest. They have long hair-like antennae but lack the coiled mouthparts that moths and butterflies have. A. scotti males have a forewing length of 7.7-8.1 mm, while females measure 7.7-9.0 mm. They are dark brown in color, with forewings covered uniformly by dark brown hairs. The wing coupling mechanism consists of approximately eight stout, non-clavate bristles at the base of the hind wing, and a line of short, stout, hooked setae along the costal margin of the hind wing which engage upon long hairs arising from the anal margin of the forewing. Identification of adult caddisflies requires taxonomic expertise.
Overview
- Species Common Name Scott's Apatanian Caddisfly
- Species Scientific Name Allomyia scotti
Ecoregions
East Cascades
The East Cascade ecoregion extends from the Cascade Mountains' summit east to the warmer, drier high desert and down the length of the state. This ecoregion varies dramatically from its cool, moist border with the West Cascades ecoregion to its dry eastern border, where it meets sagebrush desert landscapes.
West Cascades
The West Cascades ecoregion extends from east of the Cascade Mountains summit to the foothills of the Willamette, Umpqua, and Rogue Valleys, and spans the entire length of the state of Oregon. It is largely dominated by conifer forests, moving into alpine parklands and dwarf shrubs at higher elevations.