Michigan Butterflies and Skippers: A Field Guide and Reference
Provides illustrations of Michigan's recorded butterflies and skippers and comments on their identification, habitat, adult food sources, larval host plants and distribution in the state.
23 pages matching knapweed in this book
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Black Swallowtail Papilio polyxenes asterius Stoll
Spicebush Swallowtail Papilio troilus Linnaeus
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Adults and food Adults nectar band black border black spots blackish blue blueberry bog-rosemary Boisduval butterflies caterpillar Clouded Sulphur common milkweed damp soils dark brown Distribution disturbed areas dogbane Dusky Wing Early stages Eggs are laid Euphyes Flight period food sources Forest openings Fritillary goldenrod Habitat Hairstreak hindwing Hobomok Skipper host plants including Isle Royale Isle Royale Jersey tea knapweed larvae Locally uncommon Lower Peninsula male's forewing margin meadows Michigan Michigan Natural Features moisture and nutrients Natural Features Inventory northern nutrients from damp oak-pine barrens observed nectaring old fields openings and edges orange spots overwinter patch red clover reddish Remarks roadsides Scattered counties Scudder sedge Single brood Skipper southern counties species specimens Spring Azure stages and host stripes submarginal Swallowtail swamp tail take moisture thistle Throughout Michigan Throughout the Upper undersurface Upper Female Upper Male Upper Peninsula upper surface vetch W.H. Edwards white spots wild yellow yellowish orange