. Bulletin. Natural history; Natural history -- Montana. BUTTERFLIES OF MONTANA. 37. GENUS EURYMUS, Swainson. (The Sulphurs.) Fig. 33. Butterfly—Medium sized, yellow or orange in color, with black borders upon the wings. In many species this border is heavier in the female than in the male. Egg—The egg is spindle shaped, thickest at the middle, tapering at the apex and at the base, generally attached by an enlarged disk- like expansion, to the point on which it is laid. The caterpillar feeds upon Leguminosae and especially upon the clover. Distribution—This genus is represented throughout the
. Bulletin. Natural history; Natural history -- Montana. BUTTERFLIES OF MONTANA. 37. GENUS EURYMUS, Swainson. (The Sulphurs.) Fig. 33. Butterfly—Medium sized, yellow or orange in color, with black borders upon the wings. In many species this border is heavier in the female than in the male. Egg—The egg is spindle shaped, thickest at the middle, tapering at the apex and at the base, generally attached by an enlarged disk- like expansion, to the point on which it is laid. The caterpillar feeds upon Leguminosae and especially upon the clover. Distribution—This genus is represented throughout the temperate regions of both hemispheres. It also occurs in the cooler por- tions of South America and along the ranges of the Andes. Key to Species. 1. Ground color of wings yellow, no black at base; underside with a sub-marginal row of dark points, philodice. Ground color of wings orange, or at least an orange patch in the middle of fore wings. Wings orange above and below, eurytheme. Wings deep orange above, green below meadii. Under side without sub-marginal row of black spots. Apex of fore wings and the entire surface of hind wings greenish gray, color generally white, scudderi. Canary yellow, larger than preceding; ocellus on under side, hin 1 wings white, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of Montana (Missoula); University of Montana (Missoula). Biological series. Missoula : University of Montana
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