Potemnemus rosenbergii Vollenhoven, 1871 :108

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 : 515-516

Potemnemus rosenbergii Vollenhoven, 1871:108

Figs. 14, 15, 16, 17 , 81 .

Protemnemus rosenbergii Vollenhoven, 1871 (original spelling of species name maintained).

Notes. Potemnemus rosenbergi ferrugineus Kriesche, 1923 was synonymized by Breuning (1944) and De Jong (1947). We agree with Breuning (1944) and De Jong (1947) that P. rosenbergii ferrugineus is a junior synonym of P. rosenbergii .

P.wolfi Berchmans, 1925 was synonymized by Breuning (1944) and was also assumed to be a synonym by De Jong (1947) However, De Jong did not formalize it. We resurrect P. wolfi sp. res. (see under this species).

Examined type specimen. HT ♀ RMNH (photo examination), BL = 44.0 mm, Indonesia, Papua, Manokwari.

Other specimens examined. 1♀ CHW, BL = 47.0 mm, Papua New Guinea, Morobe Province (MP), Mt. Kaindi 1200m, Wau Valley, 1998.04.27; 1♀ CUN, BL = 40.0 mm, MP, Aseki, 2000.01.31, leg. M. Hudson; 1♀ CUN, BL = 46.0 mm, MP, Aseki, 1991.07. 1 ♂ LGBC, BL = 38.0 mm, Gulf Province, Ivimka Research Station, 120 m, Lakekamu basin,7'44 S 146 30 E 3-15 November, 1999, leg. S. Heydon, N. Schiff & T. Sears, LGBC.

P. rosenbergii ferrugineus Kriesche, 1923: 429 ( Fig. 15 )

Examined type: HT ♂ MNHUB, BL = 32.5 mm, Papua New Guinea, Butanang, Kelana, 1887, leg. S. Rohde.

Morphological characteristics: a large and broad species (BL = 32.5–47.0 mm) with body approximately 3.0 x longer than wide (Figs. Figs. 14–16 ). Antennae: relatively long in both sexes, extending beyond apices by about 4–5 antennomeres. Thorax: the colour of pronotum is brown and speckled with reddish-brown pubescence, and laterally, below each pronotal spine, with white longitudinal pubescence ( Fig. 17 ). There are also two to six small white pubescent spots medially on pronotum ( Figs. 14–16 ). Elytra: three series of white pubescent patches and spots on each elytron, of which the anterior spots (slightly above middle of elytra) are almost forming a transverse white band ( Figs. 14–16 ). Lateral carina and epipleuron with a series of small granules, whereas the granules anterio-medially on elytra often are larger ( Fig. 16 ). Elytra is mottled with reddish-brown pubescence. The slightly elevated and transverse ridge on the middle of elytra is weak. Legs: mottled with a mixture of short brownish, greyish and whitish pubescence. Venter: prosternal process with a large and elongate, blunt tubercle anteriorly. Venter is mottled with a mixture of short brownish, greyish and whitish pubescence.

Remarks. This rarely collected species is easily separated from all other species of Potemnemus by the reddish-brown pubescence and the white patches on elytra. P. rosenbergii has been found on both the eastern and western parts 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 13 – 18. Habitus. 13. HT ♂ P. gigas Aurivillius, 1926, 41.0 mm (photo: photo: M. Eulàlia Gass i Miracle, RMNH); 14. HT ♀ P. rosenbergii Vollenhoven, 1871, 44.0 mm (photo: M. Eulàlia Gass i Miracle, RMNH); 15. HT ♂ P. rosenbergii ferrugineus Kriesche, 1923, 32.5 mm (photo: Stephan Gottwald, MNHUB); 16. ♂ P. rosenbergii, 38.0 mm (photo: L. Bezark); 17. HT ♀ P. rosenbergii Vollenhoven, 1871, lateral view (photo: M. Eulàlia Gass i Miracle, RMNH); 18. HT ♀ P. wolfi Berchmans, 1925 sp. res., 46.0 mm (photo: M. Eulàlia Gass i Miracle, ZMA).