Potemnemus pristis Pascoe, 1866 : 282

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 : 512-514

Potemnemus pristis Pascoe, 1866: 282

Figs. 22, 23 , 81 .

Notes. Potemnemus thomsoni Lansberge, 1880 was assumed to be a synonym by De Jong (1947) and by Breuning (1944), but not formalized by them.

Examined type specimen. HT ♂ BMNH (photo examination), BL = 30.0 mm, Indonesia, Papua, Aru Islands.

Other specimens examined. 1♀ CHW, BL = 47.5 mm, Papua New Guinea, Milne Bay Province, Rossel Island, 1997.05.07; 1♀ CHW, BL = 43.0 mm, Milne Bay Province, Rossel Island, 1997.05.0 6.

Morphological characteristics: a large and broad species ( BL = 30.0– 47.5 mm), with body approximately 3.0 x longer than wide ( Figs. 22, 23 ). The pubescence on the entire body is whitish with mottled greyish pubescence and an irregular and oblique greyish, transverse band below the middle of elytra. Antennae: relatively long in both sexes, extending beyond apices by about 4–5 antennomeres in females and by about 5–6 antennomeres in the HT male. Thorax: pronotum is densely covered width very small black spots, which consist of glabrous granules with the black integument exposed. Pronotum has basally three slightly raised and pubescent tubercles, of which the median tubercle is glabrous (most pronounced in the HT male). The females have a glabrous and very small spot on the middle of pronotum. Posterior part of pronotum with a very weak impression medially. Pronotum with a brown spot medially. Lateral tubercles forming a U-like pattern (most pronounced in females). Scutellum is white with a brown median spot and covered by a brownish and subtriangular spot with a few small, raised granules on each side. Elytra: Female elytra are slightly broader and less narrowing towards apices, and marginal spines shorter. There is a row of spines along lateral carina in both sexes. Female epipleuron is also covered with brown pubescence, contrasting to the whitish elytra that lack small black spots dorsally. Legs: mottled with a mixture of short brownish, greyish and whitish pubescence. Venter: prosternal process with one broad tubercle anteriorly. Mesosternum and abdominal ventrites are mottled with a mixture of short brownish, greyish and whitish pubescence.

Remarks. P. p r i s t i s is most similar to P. kaszabi , but easily separated by the whitish elytra that lack small black spots, and by the distinct spines along the lateral carina. P. pristis is known from Aru Island and Rossel Island which is a new locality for this species ( 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 19 – 24. Habitus. 19, ♀ P. wolfi Berchmans, 1925 sp. res., 46.0 mm (photo: U. Nylander); 20. HT ♀ P. wolfi Berchmans, 1925 sp. res., lateral view (photo: M. Eulàlia Gass i Miracle, ZMA); 21. HT ♂ P. thomsoni Lansberge, 1880 sp. res., 45.0 mm (photo: A. Taghavian, MNHN); 22. HT ♂ P. pristis Pascoe, 1866, 30.0 mm (photo: M. Barclay, BMNH); 23. ♀ P. pristis Pascoe, 1866, 47.5 mm; 24. ♀ P. sepicanus Kriesche, 1923, 53.0 mm (photo: U. Nylander).