Niphetoscapha Heller

Riedel, Alexander & Kilmaskossu, Agust, 2017, Revision of the subgenus Niphetoscapha Heller of Gymnopholus Heller (Coleoptera, Curculionoidea, Entiminae, Eupholini) and a new species with epizoic symbiosis from West New Guinea, Zootaxa 4254 (3), pp. 339-356 : 347-348

Key to the species of Niphetoscapha Heller

1 Elytron and pronotum with irregular rough sculpture composed of wrinkles, pits and tubercles, densely covered with scales and setae more or less obscured by greenish encrustations ( Figs. 5–6 )..................... G. inexspectatus Riedel sp. n.

– Elytron and pronotum with weak sculpture, at most coriaceous; at most elytron partially squamose.................... 2

2 Elytra with subapical tubercles distinct, laterally projecting; surface rather polished; base usually with fovea filled with brownish exudates ( Fig.39 )............................................................................ G. nitidus

– Elytra with subapical tubercles indistinct, weakly projecting; surface dull, and / or partly squamose; base without fovea filled with brownish exudates................................................................................. 3

3 Elytral intervals 4–6 longitudinally impressed and sparsely squamose. Pronotum smooth, weakly punctate ( Fig. 16 ).................................................................................................. G. wichmanni

– Elytron without longitudinal impression; with coriaceous sculpture, without scales. Pronotum punctate-granulate ( Fig. 13 )................................................................................................ G. audax

Figures

FIGURE 39. Elytral base of Gymnopholus (Niphetoscapha) nitidus with exudates. FIGURES 40 a – b. Gymnopholus (Niphetoscapha) inexspectatus sp. n., live specimen with incrustrations of algae and lichens; photographs M. Wild, Mokndoma.

FIGURES 5 – 8. Habitus of Gymnopholus (Niphetoscapha) spp., dorsal aspect: (5) G. inexspectatus sp. n., holotype; (6) G. inexspectatus sp. n., allotype; (7) G. wichmanni, paralectotype, male; (8) G. wichmanni, lectotype, female.

FIGURES 13 – 16. Pronotum of Gymnopholus (Niphetoscapha) spp., female: (13) G. audax (14) G. nitidus; (15) G. inexspectatus sp. n., allotype; (16) G. wichmanni, lectotype.