Infra-cereal plates: in Orthoptera - generally inconspicuous paired plates which underlie in part the cerci and in part the lateral portion of the supra-anal plate.
Infra-clypeus: = ante-clypeus and rhinarium: q.v..
Infracted: abruptly bent inward, as if broken.
Infra-genital: below the genital opening or process.
Infra-marginal: situated below or behind the marginal cell.
Infra-median vein; in Orthoptera: = ulnar vein: q.v.
Infra-ocular: applied to the region below and between the eyes.
Infra-oesophageal: situated below oesophagus; see sub-oesophageal.
Infra-stigmatal: situated below the stigmata or spiracles.
Infringing: encroaching upon.