Prae-tornal: preceding the tornus (q.v.) in Lepidoptera.
Prasinus: grass-green [apple green].
Pratinicolous: frequenting or living in grassy meadows or bogs.
Pre-alar callus: a small swelling or projection before the root of wings, just back of outer ends of transverse suture, in Diptera.
Pre-anal: above or before the anal opening.
Pre-anal plate or lamina: = supra-anal plate; q.v.
Pre-antennal: anterior to or before the antenna.
Pre-apical: before the apex.
Pre-balancer: = pre-halter: q.v.
Pre-basilar: before the base.