Ceutorhynchus ignitus, Germar, 1824

Krátký, Jiří, 2012, A new species of Ceutorhynchus (Coleoptera: Curculionidae: Ceutorhynchinae) from the Tatra Mountains in Slovakia, Acta Entomologica Musei Nationalis Pragae 52 (1), pp. 259-265 : 264

Key to central European species similar to C. ignitus Germar, 1824

1. Pronotum with visible, sometimes very small but distinct, lateral tubercles. Body broadly oval. ................................................................................................................................. 2

– Pronotum without lateral tubercles. Body slender. On Cardamine . ................................... ............................................................................................. C. pandellei C. Brisout, 1869

2. Punctures on pronotum fine, on average less than twice as large as on head. Middle and hind femora with distinct tooth. ...................................................................................... 3

– Punctures on pronotum very coarse, mostly 2–3 times as large as on head. Middle and hind femora with minute or obsolescent tooth. On Cardamine and Dentaria . .................. ..................................................................................................... C. pervicax Weise, 1883

3. Large species, body length 2.7–3.2 mm. White scales on sides of thoracic meta- and mesoventrite much denser and larger than those on prosternum and abdomen. Profemora with a distinct tooth. On Barbarea . ..................................... C. barbareae Suffrian, 1847

– Smaller species, body length up to 2.6 mm. White scales on thoracic meta- and mesoventrite at most slightly denser than those on prosternum and abdomen. Profemora finely toothed or not. ............................................................................................................................... 4

4 Interspaces of punctures on head and pronotum microreticulate, matt. Elytral intervals slightly convex. Aedeagus rectangular in outline ( Fig. 4 ). High montane species. ........... ............................................................................................................. C. tatricus sp. nov.

– Interspaces of punctures on head and pronotum shiny, without microreticulation. Elytral intervals flat. Aedeagus rounded or sharpened apically ( Figs. 5, 6 ). Lowland species. .. 5

5. Body a little wider (Fig. 3). Fine hairs on elytral interspaces shorter than width of one interspace, brownish. Ultimate apex of aedeagus rounded ( Fig. 6 ). On Berteroa incana . ..................................................................................................... C. ignitus Germar, 1824

– Body a little slenderer (Fig. 2). Fine hairs on dorsal elytral interspaces as long as or longer than width of one interspace, whitish. Ultimate apex of aedeagus pointed ( Fig. 5 ). On Cardaria draba . ...................................................................... C. merkli Korotyaev, 2001

Figures

Figs. 4–6.Aedeagus. 4 – Ceutorhynchus tatricus sp. nov., holotype; 5 – C. merkli Korotyaev, 2001 from Slovakia, Štúrovo (coll. JKHC); 6 – C. ignitus Germar, 1824 from Bohemia, Kunětická hora (coll. JKHC).