Rhytidothynnus sp. (female)
Remarks: The female wasp is approximately 15 millimetres long. The male approximately 40 millimetres.
The wingless female Thynnid Wasps release pheromones that signal to the winged male that she is ready to mate. The male picks up the female and takes her to nearby flowers. They mate while she is feeding. The male then drops her to the ground where she lays her eggs.
These photographs were taken in October.
References: Identification courtesy of David Knowles.
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