One Big Honking Sawfly!
This is the adult male Elm Sawfly, photographed at McIntosh Run in Spryfield on July 10th. These large relatives of bees, wasps and ants, are about the same size as large bumble bees, and when one flies past your head, you know it.
Here's the adult female Elm Sawfly, photographed on a cool, cloudy day at Roaches Pond in Spryfield on July 29th. The abdomen can also be black or brick red/orange but the legs and antennae are always bright yellow.