. Elementary lessons on insects . Fig. 13.—The developmental stages of an owlet moth, Arzatna obliqua (after Claassen). a, a single egg taken from the covered egg cluster, b, and highly magnified; c, the grown larva; d, pupa; e, adult moth.

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Keywords: ., bookcentury1900, bookcollecti, bookdecade1920, booksubjectinsects