PL. XXIX
(5) Grapta progne (Cramer), [Plate XXIX], ♂ (The Currant Angle-wing).
Somewhat smaller than any of the foregoing species. Fore wings light fulvous shading into yellow outwardly. The dark markings are smaller than in the other species, but pronounced and clearly defined. Wings below very dark, sprinkled with lighter scales. Expanse 1.85-2.00 inches.
The larva feeds upon all kinds of plants belonging to the currant family.
Ranges from Siberia to Nova Scotia, thence south to the latitude of Pennsylvania.
Genus VANESSA Fabricius
(The Tortoise-shells).
Butterflies of medium size. Eyes hairy; palpi somewhat heavily scaled; cell of fore wings may or may not be closed, that of hind wing always open. Fore wings more or less excavated about middle and somewhat produced at ends of upper radial and first median, but not so strongly as in Grapta. Hind wings, with outer margin toothed at ends of veins and strongly produced at end of third median nervule. Eggs short, ovoid, tapering above, and having a few narrow longitudinal ribs, which increase in depth upward; laid in large clusters. Caterpillars when mature, cylindrical, with longitudinal rows of branching spines. Feeding upon elms, willows, and poplars. Chrysalis not unlike that of Grapta.
The genus is restricted to the north temperate zone and the colder mountain regions of subtropical lands. The butterflies hibernate, and are among the first to be seen in the springtime.