Question Mark (Polygonia interrogationis) life history
Question Mark (Polygonia interrogationis) Life History

Eggs, 10-10-11 (deposited 10-9-11)




Molting, 10-20-11


Second caterpillar, 10-26-11 (note spines and stripes are more yellow)


Fully grown caterpillar, 10-30-11

Chrysalis, 10-31-11

First adult Question Mark, ventral, 11-7-11

Second adult Question Mark, dorsal, 11-10-11

A captive female deposited three eggs on the fabric of the cage I put her in. It is typical of this species that the eggs were stacked linearly (see the first picture to the right). On another occasion, I have seen six or more eggs stacked in the same fashion.

The caterpillars emerged after three days. One died almost immediately. The other two were successfully raised on Sugar Hackberry, Celtis laevigata.  The first caterpillar pupated 19 days after it hatched from the egg; the second took 23 days. The entire cycle took less than four weeks.

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