Airora

Body size: about 7.0–16.0 mm. Body shape elongate. Gular sutures narrow, subparallel at apex. Frontoclypeal suture absent. Frons: longitudinal groove or depression absent. Cranium ventrally: tufts of long setae at sides present. Submentum: ctenidium absent. Antennal groove present. Eyes: size flat. Eyes number: two. Epicranial acumination deep. Lacinial hooks absent. Galea: shape elongate. Galea: ciliate setae absent. Mediostipes-Lacinia not fused. Palpifer: outer edge denticulate. Mandibular apical teeth number: two, vertically situated. Mola reduced but present. Penicillus (at base) present (fine, often membranous). Pubescence above mola or cutting edge absent. Ventral furrow present. Basal notch moderate. Labrum-Cranium not fused. Epipharyngial sclerite present. Lateral tormal process: projection curved downwards, processes not connected (Airora). Ligula: ciliate setae absent. Ligula rigid, strongly retroflexed, deeply emarginate. Hypopharyngeal sclerite consisting of two separate parts. Antenna 11-segmented. Antennal club asymmetrical, sensorial fields present. Front coxal cavities externally closed, internally open. Pronotum elongate. Prepectus absent. Middle coxal cavities open. Elytra: long hairs absent. Epipleuron moderate. Elytral interlocking mechanism present, carinae reduced. Elytral punctation regular, scales absent. Wing: radial cell oblong (or reduced), wedge cell present, cross vein MP3-4 present, cross vein AA1+2-3+4 absent. Front tibiae: spines along side large. Hooked spur present. Claws: denticle absent. Parasternites number along ventrites III–VII: one. Spiculum gastrale absent. Tegmen composed of two parts. Coxitae undivided. Larva: Frontal arms V-shaped. Epicranial stem reduced. Endocarina present. Gular sutures conspicuous, parallel. Gula: anterior apodemes absent. Paragular sclerites present. Hypostomal rods absent. Stemmata number: five. Mandibular apical teeth number: two, horizontally situated. Lacinia mandibulae absent. Mola absent. Maxillary palpi 3-segmented. Cardo: size much smaller than stipes. Labial palpi 2-segmented. Prementum in single part. Antennal joints 1 and 2 elongate. Sensory appendix very small. Thoracic sclerites pattern (dorsally) 1-2-2. Thoracic sclerites pattern (ventrally) 3+1+1. Abdominal segment IX not divided. Tergite IX flat. Urogomphi present, hooked; median process absent.

From Brazil to Canada.