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Brood pot: a single wax-lined chamber filled with nectar and pollen. Unlike a honey bee comb that can have hundreds to thousands of brood cells.
Metamorphosis: dramatic change in body form... more
Prepupa: the inactive stage just before the pupa in the development of certain insects.
Pupa: resting stage during which tissues are reorganized from larval form to adult form. The pupa is the third body form in the life cycle of insects that undergo complete metamorphosis (like caterpillars).
Digging females of Centris pallida tunnel down through sandy to gravelly soil for about a foot or so before finishing off the burrow with an inch-long vertical, terminal cell located roughly eight inches beneath the surface of the soil. In this cell, the female forms a brood pot lined with wax that she then fills with nectar and pollen. On top of the sticky mass of food, she lays an egg, which hatches into a tiny grub that feasts on the provisions provided by its mother.
Once the food is gone and the grub’s development is complete, the baby bee turns itself into a pale grub-like prepupa, which rests quietly underground for 11 months or so. Long after its mother prepared the cell for its offspring, the prepupa eventually metamorphoses into a pupa, which in turn soon becomes an adult bee. The fresh adult digs its way up to the surface and begins a very active life beginning in April or early May that runs its course in about a month or so.
John Alcock. (2011, July 11). Female Digger Bees. ASU - Ask A Biologist. Retrieved August 23, 2019 from https://askabiologist.asu.edu/female-digger-bees
John Alcock. "Female Digger Bees". ASU - Ask A Biologist. 11 July, 2011. https://askabiologist.asu.edu/female-digger-bees
John Alcock. "Female Digger Bees". ASU - Ask A Biologist. 11 Jul 2011. ASU - Ask A Biologist, Web. 23 Aug 2019. https://askabiologist.asu.edu/female-digger-bees