Black witch

Description

The erebid moth Ascalapha odorata, commonly known as the black witch, is a large bat-shaped, dark-colored nocturnal moth, normally ranging from the southern United States to Brazil. Ascalapha odorata is also migratory into Canada and most states of United States. It is the largest noctuoid in the continental United States. In the folklore of many Central American cultures, it is associated with death or misfortune. Female moths can attain a wingspan of 24 cm. The dorsal surfaces of their wings are mottled brown with hints of iridescent purple and pink, and, in females, crossed by a white bar. The diagnostic marking is a small spot on each forewing shaped like a number nine or a comma. This spot is often green with orange highlights. Males are somewhat smaller, reaching 12 cm in width, darker in color and lacking the white bar crossing the wings. The larva is a large caterpillar up to 7 cm in length with intricate patterns of black and greenish-brown spots and stripes. The black witch lives from the southern United States, Mexico and Central America to Brazil. Adults feed on overripe rainforest fruit, especially bananas, and larvae consume the leaves of plants. Most of its host plants are legumes. It favors Acacia species, Kentucky coffeetree (Gymnocladus dioicus), and candle bush (Senna alata). It attacks mesquite and ficus, and can be an agricultural pest. The black witch flies north during late spring and summer, as far as Hawaii. One was caught during an owl banding project at the Whitefish Point lighthouse on the shoreline of Lake Superior in July 2020. Black witch moth pupae were placed in the mouths of victims of serial killer 'Buffalo Bill' in the novel The Silence of the Lambs. In the movie adaptation, they were replaced by death's-head hawkmoth pupae.