Description
provided by Zookeys
Body size: about 3.0 mm. Body shape convex (not conglobate). Gular sutures wide, subparallel. Frontoclypeal suture absent. Frons: longitudinal groove or depression absent. Cranium ventrally: tufts of long setae at sides absent. Submentum: ctenidium absent. Antennal groove absent. Eyes: size moderate. Eyes number: two. Epicranial acumination absent. Lacinial hooks: two. Galea: shape sub-clavate. Galea: ciliate setae absent. Mediostipes-Lacinia fused together. Palpifer: outer edge even. Mandibular apical teeth number: two, horizontally situated. Mola absent. Penicillus (at base) present (fine, often membranous). Pubescence above mola or cutting edge present. Ventral furrow absent. Basal notch shallow or absent. Labrum-Cranium not fused. Epipharyngial sclerite absent. Lateral tormal process: projection projection not developed (all remaining). Ligula: ciliate setae absent. Ligula membranous, not retroflexed, deeply emarginate. Hypopharyngeal sclerite absent. Antenna 11-segmented. Antennal club symmetrical, sensorial fields absent. Front coxal cavities externally open, internally open. Pronotum transverse. Prepectus present. Middle coxal cavities open. Elytra: long hairs absent. Epipleuron thin. Elytral interlocking mechanism absent, carinae reduced. Elytral punctation irregular, 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 reduced. Hooked spur absent, apical spurs not hooked or weakly hooked. Claws: denticle absent. Tegmen composed of only one part. Coxitae divided.
Larva: Frontal arms curved (cucujoid). Epicranial stem reduced. Endocarina present. Gular sutures inconspicuous. Gula: anterior apodemes present. Paragular sclerites absent. Hypostomal rods absent. Stemmata number: five. Mandibular apical teeth number: two, horizontally even, vertically situated. Lacinia mandibulae tridentate. Mola absent. Maxillary palpi 3-segmented. Pedunculate seta absent. Mala simple. Mala: bidentate protrusion present. Ligula present. Labial palpi 2-segmented. Antennal joints 1, 2 transverse. Sensory appendix larger than half of joint 3. Thoracic sclerites pattern (dorsally) 1-0-0. Thoracic sclerites pattern (ventrally) 1+1+1. Abdominal segment IX not divided. Tergite IX flat. Urogomphi present, hooked; median process absent.
- bibliographic citation
- Kolibáč J (2014) Trogossitidae: A review of the beetle family, with a catalogue and keys ZooKeys 366: 1–194
- author
- Jiří Kolibáč