I'm pretty sure this unknown bug man is from the Imaginext line since he is the same design style and size of my Space Shuttle crewmen. However, I can't seem to find any online information about him yet. His orange bug-like helmet is removable to reveal that his costume is mostly black with yellow and orange stripes. He was in the third bag of toys that I picked up at a local thrift store. If anyone has any information about him, then please feel free to post in the comments.
Update: I found out that he is Imaginext's Sky Racers Sea Stinger.