Monday, July 02, 2007

Tiphiid Wasp

Tiphiid Wasp (Myzinum sp.)

There are 13 species of wasps in this genus and it's very difficult to distinguish between some of them using only a photo. This one was nectaring on the dill weed in the garden.

The larvae of these wasps are parasitoids of white grubs (scarab larvae), especially May Beetles. Female lays one egg per grub in soil. Larvae hatches, penetrates host, first feeding on non-essential tissues, later feeding on essential organs and killing host. Pupae overwinter in soil and adults emerge in early summer, with one generation per year.

Source: BugGuide