Potemnemus tuberifer Gahan, 1894 : 292

Wallin, Henrik & Kvamme, Torstein, 2015, A review of the genus Potemnemus Thomson, 1864 (Coleoptera: Cerambycidae) with description of a new species from Papua New Guinea, Zootaxa 4040 (5), pp. 501-542 : 523

Potemnemus tuberifer Gahan, 1894: 292

Figs. 42, 43 , 81 .

Examined type specimen. HT ♀ BMNH (photo examination), BL = 35.0 mm, Indonesia, Papua, Mount Arfak.

Morphological characteristics. a relatively large and robust species (BL = 35.0 mm) with body approximately 3.0 x longer than wide ( Fig. 42 ). Antennae: long in the HT female, extending beyond apices by about 4–5 antennomeres. Thorax: pronotum is smooth and supplied with a longitudinal whitish and narrow band interrupted medially with a dark brown spot surrounded by whitish pubescence. The preapical transverse groove, or impression, medially across entire pronotum is weak. Elytra: sub-parallel with a mixture of small and large, glabrous granules concentrated around the distinctly raised and bulb-like area anteriorly, remaining surface of elytra flattened. The lateral carina with a series of small spines ( Fig. 43 ), and distinctly curved inwards before 1/3 remaining of elytra towards apex ( Figs. 42, 43 ). Elytral surface is convex (lateral view). The colour of elytra is brownish. Legs: strongly mottled with yellowish pubescence.

Remarks. The concentration of large granules at the anterior part of the raised section of elytra is a character that P. tuberifer shares with P. thomsoni sp. res., P. wheatcrofti comb. nov. and P. n y l a nd e r i nov. sp. The distinct lateral carina is curved towards the middle of each elytron 1/3 before apex, is unique to P. tuberifer and P. thomsoni sp. res. P. tuberifer is easily separated from P. thomsoni sp. res. by the dark brown colour and concave elytra (seen in lateral view), P. tuberifer is known from the Arfak Mountains (Bird´s Head Peninsula) on the western part of the island of New Guinea ( Fig. 81 ).

Figures

FIGURE 81. Known records of Potemnemus spp. (red numbers) and Periaptodes spp. (blue numbers) from Australia, the island of New Guinea, Moluccas and Solomon Islands. 1. Potemnemus ennevei De Jong, 1947, 2. Potemnemus kaszabi (Breuning, 1973), 3. Potemnemus lima Pascoe, 1866, 4. Potemnemus nylanderi Wallin & Kvamme, 2014 nov. sp., 5. Potemnemus pristis Pascoe, 1866, 6. Potemnemus rosenbergii Vollenhoven van, 1871, 7. Potemnemus scabrosus (Olivier, 1790), 8. Potemnemus sepicanus Kriesche, 1923, 9. Potemnemus thomsoni Lansberge, 1880 sp. res., 10. Potemnemus trimaculatus Lea, 1918 sp. res., 11. Potemnemus tuberifer Gahan, 1894, 12. Potemnemus wheatcrofti (Breuning, 1971) comb. nov., 13. Potemnemus wolfi Berchmans, 1925 sp. res., 14. Periaptodes frater (Van de Poll, 1887), 15. Periaptodes lictor Pascoe, 1866, 16. Periaptodes olivieri (Thomson, 1864), 17. Periaptodes potemnemoides Kriesche, 1936, 18. Periaptodes testator Pascoe, 1866, 19. Periaptodes paratestator Breuning, 1980.

FIGURES 41 – 44. Habitus. 41. PT ♀ P. nylanderi nov. sp., lateral view; 42. HT ♀ P. tuberifer Gahan, 1894, 35.0 mm (photo: Maxwell Barclay, BMNH); 43. HT ♀ P. tuberifer Gahan, 1894, lateral view (photo: Maxwell Barclay, BMNH); 44. HT ♂ Periaptodes testator Pascoe, 1866, 32.0 mm (photo: M. Barclay, BMNH).