That's either C. chromaiodes or another partial red thorax species. C. nearcticus either has a full red thorax or full black thorax. The queens have an elongated abdomen, and they are TINY. Trust me, I've encountered both variants.
C.nearcticus also has shorter legs.
ah. I currently have a small red-and-black C. nearcticus colony, so I tend to think all small red-and-black camponotus are C. nearcticus. Also, I thought C. chromaiodes was a lot larger than that.
They look kind of large in the picture.
Also, note how the queen has a partially black/red thorax. C. nearcticus has a completely red thorax.
