Bimodal-flight
Guides
Dichomeris simpliciella
Dichomeris simpliciella is a small gelechiid moth described by August Busck in 1904. It is distributed across western and south-central North America, from southern Alberta through the western United States to Texas and northern Mexico. The species exhibits distinctive bicolored forewings with a sharp longitudinal division between light ochreous and dark fuscous areas. Adults are active during two periods: spring (April–June) and late summer through autumn (August–November).
Protorthodes ustulata
Protorthodes ustulata is a small noctuid moth described in 2014, distinguished by its burnt-orange forewings with contrasting gray-white markings. The species inhabits arid and semi-arid regions of the southwestern United States and northern Mexico. Adults are active during two distinct periods: spring and late summer through early autumn.
Psammopolia insolens
Psammopolia insolens is a noctuid moth restricted to Pacific Coast sand beaches in central California. The species occurs from Carmel to Bodega Bay, with most records from the San Francisco area. Adults are active in May and again from mid-September through October. The genus name Psammopolia reflects its specialized psammophilous (sand-loving) habitat.
Undulambia polystichalis
Leatherleaf Fern Borer Moth
Undulambia polystichalis, commonly known as the leatherleaf fern borer moth, is a small pyralid moth described by Capps in 1965. The species is notable for its specialized larval association with Rumohra adiantiformis, a commercially important fern species. It represents one of the few documented cases of fern-boring behavior within the Musotiminae subfamily.
Undulambia rarissima
Gold-lined Undulambia Moth
Undulambia rarissima is a small crambid moth described by Eugene G. Munroe in 1972. It is known from limited records in Florida, with adults active during two distinct periods: January through May and again in September. The species is considered rare, as reflected in its specific epithet. Larval biology remains poorly documented, though there is tentative association with Polystichum ferns.