|scientific name Protogygia postera |
Arid native grassland-sagebrush valley floodplains and slopes; badlands
Adults have been collected in Alberta in mid August.
A medium-size (3.4-3.8 cm wingspan) streaky grey-brown moth
Almost identical in appearance to P. enalaga, which is slightly larger and darker. These two species are easiest to separate by flight date; enalaga flies in May and June and postera in August. Also flies with the very similarSetagrotis radiola, which is slightly larger and has a less streaky pattern, in particular lacking the sinuous white line outlining the orbicular and reniform in postura. Described in 2004.
Adults are nocturnal and come to light. There is a single annual brood, which emerges in the August. The early stages are unknown
A very local species; recently described and known in Canada from single sites in Alberta and Saskatchewan.
No information available.
Southern Washington to central eastern California, northern Arizona and New Mexico, east to Colorado, Wyoming and southwestern Saskatchewan. In Canada, known only from Dinosaur Provincial Park in southern Alberta and Swift Current Saskatchewan.
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