A good article with 9 supplements:
The head anatomy of Protanilla lini (Hymenoptera: Formicidae: Leptanillinae), with a hypothesis of their mandibular movement.
Richter, A., Hita Garcia, F., Keller, R.A., Billen, J., Katzke, J., Boudinot, B.E., Economo, E.P. & Beutel, R.G.
Myrmecol. News 31: 85-114 (myrmecologicalnews.org)
And the comment:
Open wide! What mandibles can teach us about ant evolution – Myrmecological News Blog
