Pieris napi L Greenveined white butterfly

Although larvae of this widely distributed species often feed on cultivated brassica plants, they are rarely numerous and occur mainly on wild plants such as Sisymbrium officinale. This species is, therefore, of little economic importance.

BIOLOGY

Adults occur in May and June, and in late July and August. Eggs are laid singly on the leaves of host plants and the larvae feed in summer and autumn.

DESCRIPTION

Adult 40-44 mm wingspan; forewings of male mainly white, more or less suffused with black both apically and basally, and venation darkened; forewings of female more extensively blackened, including two subcentral black spots; hindwings with underside mainly pale yellow, the venation dusted with black scales. Egg 1.3 mm long, pale green, spindle-shaped and ribbed longitudinally. Larva up to 30 mm long; body mainly velvet-green with yellow markings along either side (unlike the following species there is no yellow dorsal line).

Pieris rapae (L.)

Building Your Own Greenhouse

Building Your Own Greenhouse

You Might Just End Up Spending More Time In Planning Your Greenhouse Than Your Home Don’t Blame Us If Your Wife Gets Mad. Don't Be A Conventional Greenhouse Dreamer! Come Out Of The Mould, Build Your Own And Let Your Greenhouse Give A Better Yield Than Any Other In Town! Discover How You Can Start Your Own Greenhouse With Healthier Plants… Anytime Of The Year!

Get My Free Ebook


Post a comment