Lepidoptera Family Amphidasyda Moths
The seven British species of the family Amphidasyda are generally to be distinguished by their rather stout abdomens, and the long shaggy hair that covers their thoraces. The antenna of the males are pectinated, and those of the females simple; and in three cases the latter sex is wingless.
The caterpillars have long and slender twig-like bodies, and are never provided with more than two pairs of claspers. The chrysalides terminate behind in a sharp spine, and are always to be found buried in the soil.