Friday Cat-erpillar Blogging: A Nutritious Breakfast?

Caterpillars start life as an egg on a leaf. Many species have been observed to consume the chorion (egg shell) which is primarily made of protein. The chorion is assumed to be a better source of protein than the plant. Some insects do not stop at eating their own chorion, but will consume the eggs of their unhatched siblings once they have finished their own chorion. Some caterpillar species that made the transition from leaf feeding to egg predators probably started with consuming their own chorion and other eggs in the clutch.

Tobacco Hornworm Eggs

Tobacco Hornworm Eggs

FERNANDO ZUCOLOTO* measured the effect of chorion consumption on a Brazilian cabbage caterpillar and found that chorion consumption increased the weight of 24 h old caterpillars by one half. The effects of chorion consumption were still apparent in later stages of the caterpillars. Take a lesson from caterpillars: good nutrition is important for a good start in life.

* Influence of chorion ingestion on the performance of Ascia monuste and its association with cannibalism. Ecological Entomology (2001) 26, 557-561.
DOI: 10.1046/j.1365-2311.2001.00377.x

About jjneal

Jonathan Neal is a retired Associate Professor of Entomology at Purdue University and author of the textbook, Living With Insects (2010). This blog is a forum to communicate about the intersection of insects with people and policy. This is a personal blog. The opinions and materials posted here are those of the author and are in no way connected with those of my employer.
This entry was posted in by jjneal, Caterpillar Blogging, Environment. Bookmark the permalink.

1 Response to Friday Cat-erpillar Blogging: A Nutritious Breakfast?

  1. bangkok seo says:

    The software program has helped 1000’s of compact and huge businesses alike in rising visitors to web page. The thought that PPC promotion and search engine optimization are marketing strategies developed exclusively for the on the internet advertising and marketing gurus is fully misplaced.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s