Peasmarsh Fly

28th April 2011, Thursday

Gordon Jarvis found this fly in a Peasmarsh woodland and sent this image to us. It is the tachinid Hemyda vittata, a rather uncommon fly which was first recorded in Britain in the 1950s. Its distribution here is restricted to woodland in a few counties in the south-east, though its range does seem to be expanding in recent years. The larvae in common with all tachinids are parasitoids of other invertebrates, in this case true bugs of the family pentatomidae. This is not without its risks as there is at least one record of a tachinid larva being devoured by the still-living host after emerging from its abdomen!
rxhemyda-vittata.jpg
Hemyda vittata