The shape of the tectumgnathotectum:
(= epistome, tectum) an often membranous dorsal projection of the anterior margin of the basis capitulum in Mesostigmata; often diagnostic at family-, genus- or species-levels; also often difficult to see without high magnification and good optics.
is extremely useful in
species-level identification in the Monogynaspida and is often useful at the
generic and family levels.
