WA species: Oecetis avara Oecetis cinerascens Oecetis immobilis Oecetis inconspicua (4) WA species
Long maxillary palpi, elongate sickle-like mandibles, dorsal abdominal segment 1 with a pair of dark patches; hind legs longer and thinner compared to the others; case curved cones made of rock fragments and sand, or pieces of plant or twigs.
Body length: 12 mm. Body: yellow to brown. Wings: straw yellow to brown.