Typoderini, Voss, 1965

Hlaváč, Peter, 2020, Review of the tribe Typoderini (Coleoptera: Curculionidae) from Caucasus with the description of a new species of Caulomorphus from Armenia, Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 60 (2), pp. 629-638 : 630-631

Key to genera of Typoderini in the Caucasus Region

1 Elytra oval, EL/EW ratio ≤ 1.25. ................................... 2

– Elytra elongate, parallel-sided, at most slightly rounded in posterior half, EL/EW ratio ≥ 1.40. .................. 3

2 Rostrum lacking carinae, antennae slender, all funicular antennomeres longer than wide, elytral striae granulate, elytra with fine and short setae, tegmen of aedeagus simple without parameres. .............................. ..... Pseudaparopion Borovec, Zuppa & Osella, 2002

– Rostrum carinate, antennae stouter, at least some funicular antennomeres quadrate or transverse, elytral striae with large punctures, elytra with erect setae, tegmen of aedeagus with well-defined parameres. ............. .............................................. Adexius Schönherr, 1834

3 Eyes reduced to single ommatidium, apex of median lobe of aedeagus with a few short setae. ......................... .......................................... Caulomorphus Faust, 1886

– Eyes present, apex of median lobe lacking setae. ....... 4

4 Rostrum carinate, elytra lacking tubercles, antennomere II more than 1.5× as long as III, head shorter than pronotum, median lobe of aedeagus dorsally symmetrical. ...................................... Anchonidium Bedel, 1884

– Rostrum lacking carinae, elytra with tubercles, antennomere II about as long as III, head longer than pronotum, median lobe of aedeagus dorsally asymmetrical. ............................................... Aparopion Hampe, 1861