. Bulletin. Natural history; Natural history -- Montana. THE TORTISE SHELLS. Genus Eugonia Hubner. Fig. 71. Butterfly—Medium sized insects, wings above generally some shade of black or brown, marked with red, yellow or orange. The head is moderately large, eyes hairy, palpi more or less scaled, prothoracic legs feeble and ha'ry. The cut shows the wing venation. The cell of the primaries may or many not be closed. The cell of the second- aries is open. The fore wings have the outer margins more or less deeply excavated between the extremities of the upper radial and the first meaian veins, at w
. Bulletin. Natural history; Natural history -- Montana. THE TORTISE SHELLS. Genus Eugonia Hubner. Fig. 71. Butterfly—Medium sized insects, wings above generally some shade of black or brown, marked with red, yellow or orange. The head is moderately large, eyes hairy, palpi more or less scaled, prothoracic legs feeble and ha'ry. The cut shows the wing venation. The cell of the primaries may or many not be closed. The cell of the second- aries is open. The fore wings have the outer margins more or less deeply excavated between the extremities of the upper radial and the first meaian veins, at which points the wings are rather strongly produced The hind wings have the outer margin denticulate, strongly produced at the extremity of the third median nervule. Early Stages—The eggs are short, ovoid, broader at the base, ridged at the summit. They are generally laid in large clusters upon the twigs of the food plant. The mature caterpillar is cylindrical, adorned with long, branching spines in longitudinal rows. It feeds upon the elm, willow, and poplar. The insects hiber- nate in the imago form, and are among the first to appear in the Fig. yr. Venation of EugoniaJ. album. THE COMPTON TORTISE. Eugonia j. album, Boisduval Leconte. Fig. 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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