. The butterflies of the eastern United States. For the use of classes in zoology and private students. Butterflies -- United States Identification. EASTERN UNITED STATES. 289 male Nigra has the under surface the same as in the blue Violacea, but the upper surface is black. Form Pseudargiolus is the largest of the series, ex- panding indies. The upper surface pIQ go. of the male usually has a terminal border to the hind wings of the same shade of blue as the fore wings, the middle area of the hind wings a little paler than this border or the fore wings. The spots on the under side are much
. The butterflies of the eastern United States. For the use of classes in zoology and private students. Butterflies -- United States Identification. EASTERN UNITED STATES. 289 male Nigra has the under surface the same as in the blue Violacea, but the upper surface is black. Form Pseudargiolus is the largest of the series, ex- panding indies. The upper surface pIQ go. of the male usually has a terminal border to the hind wings of the same shade of blue as the fore wings, the middle area of the hind wings a little paler than this border or the fore wings. The spots on the under side are much smaller than on Lycama giolus, form Pseu- any of the preceding forms. dargioius, under Form Neglecta resembles Pseudargio- sicle- Ins, but is smaller, not expanding more than inches; spots on the under side small, as on Pseudargiolus. The Pacific form Piasus is of a deeper blue, the under j. f side bluish, with the border spots subobsolete. The winter forms of these butterflies deposit their eggs in the clusters of flower-buds of dogwood (Cornus), the young larvae obtaining their first food by boring into the buds, but later eating their way into the ovaries. The next brood of eggs are deposited on the flower-stems of rattleweed (Cimicifuga raeemosa), while the fall brood are to be found on Adinomeris squarrosa, and. probably on A. helianthoides. In confinement they have been known to eat several other plants; and it is probable that where rattleweed does not grow, the second brood of larvae feed upon something else. The eggs are .02 of an inch in diameter, round, flat at base, the top flattened and depressed; the surface covered with a white lace-work, the meshes of which are mostly lozenge-shaped, with a short rounded process at each angle. Ground color delicate green. K t 25. 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 resem
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