Grynocharina Reitter, 1877

Kolibac, Jiri, 2013, Trogossitidae: A review of the beetle family, with a catalogue and keys, ZooKeys 366, pp. 1-194: 125-126

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Grynocharina Reitter, 1877


Genus Grynocharina Reitter, 1877  Fig. 12; Map 13

Grynocharina  Reitter, E. 1877: 132.

Type species.

Grynocharina peltiformis  Reitter, 1877 [by monotypy]

Léveillé, A. 1910: 24. Kolibáč, J. 2005: 57 (redescription). Kolibáč, J. 2006: 111 (phylogeny). Kolibáč, J. 2010: 35 (key)


Only a single male specimen of the monotypic genus is known. Grynocharina peltiformis  was originally placed in a basal position on the lophocaterine tree ( Kolibáč 2006: 131) and classified within Lophocaterini  . However, that tree was constructed after character weighting. A tree under equal weights contains Grynocharina peltiformis  among the ancyronins in both analyses ( Kolibáč 2006, 2008). I maintain the position of the species in Lophocaterini  , following the original classification of 2006 and especially the key of 2010 (l.c.) Regarding the probable paraphyletic status of Lophocaterini  , the question of ancyronine/lophocaterine placement of Grynocharina peltiformis  is rendered highly irrelevant.


Body size: 3.0 mm. Body shape flat. Gular sutures wide, convergent at apex. Frontoclypeal suture present. Frons: longitudinal groove or depression absent. Cranium ventrally: tufts of long setae at sides absent. Submentum: ctenidium absent. Antennal groove present. Eyes: size large, lateral. Eyes number: two. Epicranial acumination moderate. Lacinial hooks: three. Galea: shape sub-clavate. Galea: ciliate setae absent. Mediostipes-Lacinia not fused. Palpifer: outer edge even. Mandibular apical teeth number: two, horizontally situated. Mola absent. Penicillus (at base) long setae. Pubescence above mola or cutting edge absent. Ventral furrow present, not ciliate. Basal notch shallow or absent. Labrum-Cranium not fused. Epipharyngial sclerite absent. Lateral tormal process: projection projection curved upwards ( Colydiopeltis  ). Ligula: ciliate setae absent. Ligula membranous, not retroflexed, weakly emarginate. Hypopharyngeal sclerite H-shaped. Antenna 9-segmented. Antennal club weakly asymmetrical, 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 conspicuous. Elytral punctation regular, scales absent. Wing: radial cell oblong (or reduced), wedge cell absent, cross vein MP3-4 absent, cross vein AA1+2-3+4 absent. Front tibiae: spines along side moderate. Hooked spur present. Claws: denticle absent. Parasternites number along ventrites III–VII: two. Spiculum gastrale present. Tegmen composed of three parts.




Burma (Myanmar).


Grynocharina peltiformis  Reitter, 1877; Burma (AL)

Léveillé, A. 1910: 24. Kolibáč, J. 2005: 57 (redescription)