Idanotermitinae Engel, subfam. nov.

Type genus. Idanotermes Engel, 2008 .

Diagnosis. Imago: Mastotermitids most notable for lacking ocelli, but otherwise encompassing the following additional features more typical of the family: fontanelle absent; occipital carina present; lateral cervical sclerites present but ventral cervical sclerite absent; procoxal ventral carina present; tarsi pentamerous. The genus Anisotermes Zhao et al., 2019 perhaps belongs within this group or basal among Mastotermitinae, although other characters are suggestive of a Meiatermes -grade taxon but these are likely plesiomorphies (Zhao et al., 2019).