Potemnemus sepicanus Kriesche, 1923 : 429,

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: 517-518

publication ID

http://dx.doi.org/10.11646/zootaxa.4040.5.1

publication LSID

lsid:zoobank.org:pub:479A5389-3C8C-4865-944C-6C3DBAA823CE

persistent identifier

http://treatment.plazi.org/id/03BF87A4-FFD4-FF81-FF09-FCCAFECDE3CC

treatment provided by

Plazi

scientific name

Potemnemus sepicanus Kriesche, 1923 : 429
status

 

Potemnemus sepicanus Kriesche, 1923: 429 

Figs. 24View FIGURES 19 – 24, 25, 26, 27, 28View FIGURES 25 – 30, 59, 60, 61, 62View FIGURES 59 – 66, 81View FIGURE 81.

Potemnemus hispidus Gressitt, 1952: 54  nov. syn.

Examined type specimen. HT ♀ MNHUB, BL = 51.0 mm, BW = 16.2 mm, Papua New Guinea, Etappenberg (near Wewak, East Sepik Province); 1912.10.9– 17, leg. S.G. Ledermann;

Other specimens examined. Papua New Guinea: 1 ♂ CUN, BL = 39.6 mm, Morobe Province (MP), Aseki, 1992.10; 1 ♀ CUN, BL = 43.5 mm, MP, 1992.10; 1 ♀ CUN, BL = 53.0 mm, MP, Aseki, Pawamanga Village, 2006.03. 27, leg. M. Hudson; 1 ♂ CHW, BL = 55.0 mm, Maprik, East Sepik Province, 1995.12.21; 1 ♀ CHW, BL = 47.0 mm, MP, Aseki, Yeva Village, 1997.06.30; 1 ♂ CHW, BL = 45.0 mm, MP, Aseki, Hiyewini village, 1995.03.28; 1 ♂ CHW, BL = 45.0 mm, MP, Aseki, 2004.10.10; 1 ♀ NHRS, BL = 51.5 mm, Sekar, leg. H. Kuhn (ex. coll. F.R. Mason).

Potemnemus hispidus Gressit, 1952: 54  nov. syn. ( Fig. 28View FIGURES 25 – 30).

Examined type specimen. HT ♀ AMNH, BL = 39.0 mm (photo examination), Papua New Guinea, Mount Mabion (near Selbang, Western Province).

Morphological characteristics: a large to very large and robust species ( BL = 39.0–55.0 mm, BW = 16.2) with body approximately 3.1 x longer than wide ( Figs. 24–28View FIGURES 19 – 24View FIGURES 25 – 30). Antennae: relatively long in females and very long in males: extending beyond apices by about 4–5 antennomeres in females and by about six antennomeres in males. Thorax: pronotum with a longitudinal yellowish and narrow band interrupted medially with a dark brown spot. Pronotum is densely granulated apically and below the broadened base at each lateral spine. Medially pronotum has a raised “bulb-like area with very fine granules along posterior margin (more pronounced in larger male specimens). There are also two tiny and conical tubercles on the middle of pronotum. Elytra: sub-parallel with small spines scattered over the entire surface. The colour is dark brown with distinct, white patches forming two irregular, transverse white bands. Lateral carina on elytra with a series of large granules ( Fig. 27View FIGURES 25 – 30). Humeral spine in males is short and straight. Legs: strongly mottled with white and brown pubescence. Venter: dark brown to black and weakly mottled with a mixture of short brownish and greyish pubescence. Prosternal process with a broad and blunt tubercle anteriorly. Male genitalia: aedeagus 12.0–18.0 mm long and strongly curved towards apex ( Fig. 59View FIGURES 59 – 66), with dorsal surface smooth and shining ( Fig. 60View FIGURES 59 – 66). Parameres (3.0– 3.5 mm long) broad, slightly narrowing towards anterior margin, inner margins straight and well separated, with relatively long setae attached dorsally and ventrally, dorsally deeply punctured towards apices, and the projection at base (between the two parameres) blunt ( Fig. 61View FIGURES 59 – 66). Tergite VIII (3.5 –4.0 mm long) large and elongated with a straight posterior margin covered with relatively fine and short setae ( Fig. 62View FIGURES 59 – 66). The colour of male genitalia is brownish.

Remarks. This species is most similar to P. ennevei  , but is easily separated by the weakly mottled ventral surface, the short and straight humeral spine in males, and the distinct white patches forming two irregular, transverse white bands on elytra. P. sepicanus  has, so far, only been found in the eastern parts of the island of New Guinea ( Fig. 81View FIGURE 81).

NHRS

Swedish Museum of Natural History, Entomology Collections

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Cerambycidae

Genus

Potemnemus

Loc

Potemnemus sepicanus Kriesche, 1923 : 429

Wallin, Henrik & Kvamme, Torstein 2015
2015
Loc

Potemnemus sepicanus

Kriesche 1923: 429
1923
Loc

Potemnemus hispidus

Gressitt 1952: 54
Loc

Potemnemus hispidus

Gressit 1952: 54