Subject: Need help with ID
Location: Flower Mound, TX
April 9, 2016 8:01 pm
I saw this today on my back patio. I tried searching the internet, but I can’t find anything to definitively identify. Its behavior was odd … pincers opening and closing, legs moving in and out, abdomen raising and lowering. It also ended up on its back shortly after the pics were taken still performing the sane actions.
This is an Elm Sawfly, Cimbex americana, a non-stinging relative of bees and wasps. There is some variability in the coloration, but this BugGuide image is a good color match to your individual. We don’t know what caused the unusual behavior that occurred just before death, perhaps it was just the death throes.