Hi Nate, I think this is probably M. simillima based mainly on the shape of the mandibles. In pyriformis the outer edge of the mandibles is sinuous and the width broadens towards the top before narrowing near the head insertions, while in simillima the mandibles are pretty straight and more or less the same width along their length. What do you think?
Hey Jon, I think you're right. The mandibles looked like they widened, but I think that was just the angle and a shadow of the head. Upon looking closer at the images, it's looking more like M. simillima. I'll change the ID now, cheers :)