Tuesday, August 10, 2010

Polistes dominula

Nests are begun by overwintered founding queens or foundresses , who spend about a month in the spring constructing a nest and provisioning offspring, the first of which will become daughter workers in the growing colony. Males are produced later, and when they start to appear, a few daughters may mate and leave their nest, to become foundresses the next season. The switch from production of workers to production of future foundresses is not utterly abrupt, therefore, as has been considered the case for other species of Polistes.

Polistes dominulaThe colony disperses in the late summer, with only males and future foundresses produced instead of workers, and individuals frequently cluster in groups to overwinter. Hibernation does not usually take place on former nest sites.

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