Thursday, July 26, 2012

Eating Machines

Caterpillar Update.

There are eleven Monarch caterpillars on my milkweeds as of a few minutes ago. These are the four oldest/biggest ones - the ones that were chewing on the flowers last post.  They are now 4.5-5 cms. long.


And this is (a fuzzy foto of) the brand-new baby.  It is about one centimeter long (and it is on a small tender plant); it will be twice that size by the end of the day.

According to Wikipedia and other sources:

The eggs hatch after 4 days.

The caterpillars consume the egg case, then feed on the milkweed, sequestering substances called cardenolides, a type of cardiac glycoside.  

During this stage of life, energy is stored in the form of fat and nutrients to get them through the non-feeding pupa stage.


  1. Awesome caterpillar pix K. thanks

  2. I've been nurtuting butterfly weed this summer in hopes...