Idanotermitinae Engel, 2021

JIANG, RI-XIN, ZHANG, HONG-RUI, ELDREDGE, K. TARO, SONG, XIAO-BIN, LI, YAN-DA, TIHELKA, ERIK, HUANG, DI-YING, WANG, SHUO, ENGEL, MICHAEL S. & CAI, CHEN-YANG, 2021, Further evidence of Cretaceous termitophily: Description of new termite hosts of the trichopseniine Cretotrichopsenius (Coleoptera: Staphylinidae), with emendations to the classification of lower termites (Isoptera), Palaeoentomology 4 (4), pp. 374-389 : 379

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).