Rhinoncomimus

Huang, Junhao, Yoshitake, Hiraku, Zhang, Runzhi & Ito, Motomi, 2013, Taxonomic Review of the Genus Rhinoncomimus (Coleoptera: Curculionidae: Ceutorhynchinae) with description of a new species from Yunnan, China, Zootaxa 3750 (2), pp. 143-166 : 144-145

Key to the species of Rhinoncomimus

1. Body larger, about 2.5–3.5 mm. Rostrum stout, distinctly widened in apical part. Elytral intervals moderately convex. (Subgenus Rhinoncomimus Wagner )....................................................................... 2

– Body smaller, about 2.0– 2.5 mm. Rostrum more slender, subparallel-sided from base to apex. Elytral intervals keel-like, convex. (Subgenus Homorosomulus Korotyeav)............................................................. 5

2. Only mesotibia mucronate in male.......................... Rh. niger Chûjô & Morimoto and Rh. rubripes Korotyaev

– All tibiae mucronate in male............................................................................. 3

3. Meso- and metatibia in male with very long mucro, about 0.7 to 1.0 times as long as tarsal claw. Penis slender, about 8.2 times longer than wide...................................................................................... 4

– Meso- and metatibia in male with moderate mucro, both about 0.4 times as long as tarsal claw. Penis thick, about 6.3 times longer than wide......................................................................... Rh. robustus Vos s

4. Elytral intervals sparsely spotted with white small lanceolate scales. Apex of penis with a pair of lateral narrow incisions....................................................................................... Rh. klapperichi Wagner

– Elytral intervals rarely spotted with white lanceolate scales. Apex of penis continuous, without incision.................................................................................................... Rh. continuus sp. nov.

5. Tarsi stouter, segment III more than twice as wide as segment II. Protibiae without mucro, meso- and metatibia with minute mucro. Penis with rounded apex......................................................... Rh. latipes Korotyaev

– Tarsi slender, segment III less than twice as wide as segment II. Pro- and mesotibiae with minute mucro, metatibia with moderate mucro in male. Penis with truncate apex..................................... Rh. rhytidosomoides Wanger