|scientific name Phyciodes pratensis |
common name Field Crescent
Clearings and meadows of the mountain and foothills region.
One yearly flight, generally peaking in July, dedpending on elevation and snowpack.
Our darkest crescent, the upperside is mostly brown-black unlike the others. The median line on the dorsal forewing is always thick and black, not broken with orange. Occurs only in the foothills and mountain region.
Other names that have been applied to this species include campestris (Behr) and pulchellus (= pulchella) (Boisduval); see Scott (1994) and Layberry et al. (1998) for discussion on name usage. Our populations are susbspecies owimba (Scott 1998).
The pale green eggs are laid in clusters on leaf undersides. Larvae are brown with spines and black stripes, and overwinter in the fourth instar (Scott 1994).
Not of concern.
Adults nectar at a variety of composites (Asteraceae), particularly asters and ragwort (Bird et al. 1995). In BC and the US, larvae feed on the leaves of asters (Aster spp.) (Scott 1994, Guppy & Shepard 2001).
A western mountain species, found from Alaska south to Mexico (Scott 1986).
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