Prepupa (mature larva) of a leafcutting bee, Megachile sp., exposed in its cocoon and placed on a quarter to provide a size scale.

Prepupa (mature larva) of a leafcutting bee exposed in its cocoon and placed on a quarter to provide a size scale. Credit: Whitney Cranshaw, Colorado State University, Bugwood.org<br />Licensed under a <a href="https://creativecommons.org/licenses/by/3.0/us/">Creative Commons Attribution 3.0 License</a>
Credit: Whitney Cranshaw, Colorado State University, Bugwood.org
Licensed under a Creative Commons Attribution 3.0 License