Introduction of the black-veined birch butterfly:
It is 70 – 80 mm long, with orange wings, black at the end of the wing with white beveled bands, similar in appearance to the chaga butterfly but with thicker black lines on the wings of this species, and the male has an extra white spot with a black edge in the center of the ventral surface of the hindwings, only the middle hind feet are visible when stopping, the forefoot degenerates and shrinks under the dorsal plate of the forethorax, and the hindwings do not have a caudal process. This species, also known as tabby butterfly, is widely distributed in low-altitude mountainous areas, the larvae are plant hosts such as Taiwan cowhide elimination, Taiwan cattle millet, and dragon wood, the larvae have a warning color, the pupa is a weeping pupa, and the adult insects are commonly used in the flowers of marley tendon and large flower salty and abundant grass to suck nectar, which is a common species in parks and schools. There are 4 species in this genus, in addition to the common 2 species, the other 2 species are the black-veined white spotted butterfly (white tabby butterfly) Danaus melanippus and the great birch butterfly (monarch spotted butterfly) Danaus plexippus, which are unknown or extinct species.
The black-veined birch-spotted butterfly spreads its wings , with black white oblique spots at the end of the wing surface and a thicker black longitudinal stripe near the inner orange-yellow.
The black-veined birch-spotted butterfly has a dark spot on the ventral surface of the male butterfly's wing.
The black-veined birch-spotted butterfly, the markings on the ventral surface of the female wings are similar to the forewings, and the markings are bright and eye-catching.
Black-veined birch butterfly (female) looks very much like the birch butterfly but has a thicker longitudinal vein of this species of black.
The black-veined birch butterfly crosses its tail in an upside-down posture, and the female butterfly is small, which is rarely seen, and if the male butterfly is disturbed, it will fly into the air with the female butterfly.
Ditto, the black-veined birch butterfly crosses its tail in an upside-down posture, with a sexual spot on the ventral surface of the upper wing, which is a male butterfly.
Black-veined birch butterfly, in the morning at 08:43 in the morning, the color temperature is high, the color is yellowish.