|scientific name Grammia williamsii |
common name Williams' Tiger
Found in montane grasslands, open jack pine forests and prairie habitats.
June to late July.
One of the smallest members of the genus, with an average forewing length of ~17mm. The white forewing markings consist of the typical "W" mark, with two additional transverse lines (sometimes reduced). Note lack of fine white lines alongforewing veins. Hindwing color can vary from pink to yellow; boreal and prairie populations tend to have a dull yellowish hindwing.
No information available.
Probably a variety of herbaceous plants. In prairie habitats, larvae can be common on Golden Bean (Thermopsis rhombifolia) in May. Larvae have also been observed on Senecio sp. in montane meadows.
New Brunswick to Alberta, B.C. and N.W.T., south to Arizona.
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