Glaucous Cracker (Hamadryas glauconome) life history
Glaucous Cracker (Hamadryas glauconome) Life History



First instar resting on leaf vein

Second instar

Third instar

Fourth instar

Fifth instar

Prepupal larva


Fresh adult male Glaucous Cracker, dorsum, 10-7-13

Fresh adult male Glaucous Cracker, ventrum, 10-7-13

Crackers, primarily Gray, were regular and abundant in summer-fall of 2013. Late one evening in September, I noticed a Cracker searching for a roost on a small mesquite branch about 4 feet above the ground. This was unusual behavior to me, so I took a picture from long distance in order to avoid disturbing the butterfly. The picture showed that it was a female Glaucous Cracker. I waited until a couple of hours after dark, and then returned to the branch with a flashlight and a net. She was still there, and I was able to capture her.

The butterfly began ovipositing on Dalechampia scandens after about a week in the greenhouse. The caterpillars went through the first four instars quickly, after the fashion of Gray Crackers. The caterpillars were very similar; in fact, only in the third instar was it easy to distinguish the larvae of those two species.


Face of Glaucous Cracker

Fresh adult males had a purple sheen that made them quite beautiful. I released several pair, but I never found larvae on the Dalechampia I had outside. I suspect the south Texas environment is not humid enough to promote breeding.

Glaucous Cracker Page