DESCRIPTIONS OF CERTAIN LEPIDOPTEROUS LARVÆ

Extract

Ichthyura vau Fitch.

Egg.—The colour of the unhatched eggs is deep purplish-pink, pale around the bottom; slightly shining.

First stage.—Head bilobed, bearing a few hairs, shining black; width .45 mm. Dorsum broadly bluish-white, except the black cervical shield and anal plate and joints 5 and 12, which latter ar hardly enlarged, coloured vinous-brown. Whole lateral area also brown but paler, and broken into patches. Feet black outwardly. Hair fine, very long laterally, pale, darker dorsally, arising singly from black conical tubercles with the normal arrangement.