Potemnemus scabrosus ( Olivier, 1790: 294 ),

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: 516-517

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-FFCB-FF80-FF09-FDA0FCF1E6BC

treatment provided by

Plazi

scientific name

Potemnemus scabrosus ( Olivier, 1790: 294 )
status

 

Potemnemus scabrosus ( Olivier, 1790: 294) 

Figs. 1, 2, 3, 4, 5, 6View FIGURES 1 – 6, 45View FIGURES 45 – 50, 51, 52, 53, 54View FIGURES 51 – 58, 81View FIGURE 81.

Cerambyx scabrosus Olivier, 1790 

Potemnemus loriai Breuning, 1956: 245  nov. syn.

Potemnemus trituberculatus Breuning, 1942: 120  nov. syn. (assumed to be a synonym by De Jong, 1947 but not formalized).

Notes. There are several misspellings and incorrect use of names: Cerambix scabrosus Olivier, 1795  ; Potemnemus sabrosus Thomson, 1864  (sic); Protemnemus scabrosus Pascoe, 1866  (nec Olivier, 1790); Protemnemus scabrosus Vollenhoven, 1871  (nec Olivier, 1790).

The type is lost and, as far as we know, the original description only refers to one male specimen, which would have been the holotype if found. Since we have found no other specimens from Olivier’s collection, the original drawing ( Olivier 1795; Plate 10, Fig. 70View FIGURES 67 – 74) has been designated as lectotype in agreement with the International code of zoological nomenclature ( ICZN 1999). Type locality is Indonesia, Moluccas ( Olivier 1795).

Examined specimens. 1 ♂ CUN, BL = 40.0 mm, Papua New Guinea: Morobe Province (MP), Near Anodya, 1991.06, leg. Clark; 1 ♀ CUN, BL = 40.0 mm, MP, Aseki, 1991.07; 1 ♀ IRSNB, BL = 49.0 mm, Wareo, 1910; 1 ♀ IRSNB, BL = 37.0 mm, Madang Province, Baiteta, 1996.07. 10, leg. O. Missa (canopy mission); 1 ♀ MNHUB, BL = 42.0 mm, Sattelberg (near Finschhafen on the Huon Peninsula); 1 ♂ MNHUB, BL = 33.0 mm, Sattelberg; 1 ♀ MNHUB, BL = 37.0 mm, Sattelberg; 1 ♀ MNHUB, BL = 42.5 mm, Sattelberg; 1 ♀ MNHUB, BL = 38.0 mm, Sattelberg; 1 ♂ CHW, BL = 34.5 mm, Indonesia: Papua (Irian Jaya), Nabire, 2007.10; 1 ♂ CHW, BL = 32.0 mm, Papua (Irian Jaya), Timika, 2007.01; 1 ♀ CHW, BL = 34.0 mm, Papua (Irian Jaya), Timika, 2007.01; 1 ♀ CHW, BL = 35.0 mm, (Irian Jaya), Nabire, 2007.10.

Potemnemus trituberculatus Breuning, 1942: 120  nov. syn. ( Fig. 4View FIGURES 1 – 6)

Examined type specimen. HT ♂ BMNH, 38.2 mm (photo examination), Indonesia, West Papua, Saylee, Dorey (Manokwari).

Notes. the specimen referred to as a type in the re-description by Breuning (1944), and deposited at FCNMB, is P. trimaculatus  sp. res. (photo examination). P. trituberculatus  nov. syn. is a junior synonym of P. scabrosus  (priority principle according to ICZN).

Potemnemus loriai Breuning, 1956: 245  nov. syn. ( Figs. 5, 6View FIGURES 1 – 6)

Examined type specimen. HT ♀ MCNG (photo examination), BL = 32.0 mm, Papua New Guinea, Central Province, Moroka 1000 m, 1893.10. 11, leg. L. Loria.

Re-description: a large and relatively broad ( BL = 32.0–49.0 mm), ash-grey species with body approximately 2.8 x longer than wide ( Figs. 1, 2, 4, 5View FIGURES 1 – 6). Antennae: relatively short in females and relatively long in males, extending beyond apices by about 3–4 antennomeres in females and by about 4–5 antennomeres in males. Thorax: pronotum with three broad and strongly elevated tubercles medially on pronotum ( Fig. 45View FIGURES 45 – 50). The tubercles are mostly of similar height, and the middle tubercle is rarely reduced in height or even absent ( Figs. 4, 5View FIGURES 1 – 6). The surface on pronotum below the median tubercles is heavily wrinkled (most pronounced in larger specimens). There is a very weak, longitudinal and ochreous line on pronotum, visible anteriorly and posteriorly of the broad tubercles on the middle of pronotum. Elytra: convex, and the elevated transverse ridge on the middle of elytra is distinct.

Mostly ash-grey with entire epipleuron light brown ( Figs. 1–3View FIGURES 1 – 6). Elytra have one uniform and rounded or squareformed dark brown patch with plush-like pubescence which surrounds scutellum. The patch is only slightly elongated along the suture, and two additional dark brown patches are situated laterally near apices. Elytra are strongly narrowing towards apex in males ( Fig. 1View FIGURES 1 – 6). Spines scattered along lateral carina on elytra mostly fine, but sometimes longer and “hook-like. Spines surrounding the triangular patch around scutellum are mostly rounded. Legs: relatively long and supplied with mottled brownish and greyish pubescence. Venter: prosternal process pubescent at base, with a large, broad, and rounded tubercle anteriorly. Mesosternum with a small, white patch laterally. The remaining parts of venter have short, brownish pubescence. Male genitalia: aedeagus (about 6.1 mm long) relatively short and weakly curved towards apex ( Fig. 51View FIGURES 51 – 58), with dorsal surface distinctly wrinkled medially ( Fig. 52View FIGURES 51 – 58) and sometimes along the entire surface. Parameres are broad and about 2.0 mm long, and the inner margin evenly straight towards apex ( Fig. 53View FIGURES 51 – 58). Apex rounded with relatively long setae attached ventrally, and the projection at base between the two parameres sharp and pointing ( Fig. 53View FIGURES 51 – 58). Tergite VIII (about 3.5 mm long) almost square with anterior margin slightly concave and covered with relatively fine and short setae, surface is glabrous medially ( Fig. 54View FIGURES 51 – 58). The colour of male genitalia is brown to dark brown.

Remarks. P. scabrosus  is most similar to P. trimaculatus  sp. res., but is easily separated by the three large and raised tubercles medially on pronotum, the absence of a brown patch medially on pronotum, and the rounded brown patch covering scutellum. P. scabrosus  is a widespread species occurring in the Moluccas and on the western and eastern parts of the island of New Guinea ( Fig. 81View FIGURE 81).

IRSNB

Institut Royal des Sciences Naturelles de Belgique

MCNG

Museo de Ciencias Naturales de la UNELLEZ en Guanare

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Cerambycidae

Genus

Potemnemus

Loc

Potemnemus scabrosus ( Olivier, 1790: 294 )

Wallin, Henrik & Kvamme, Torstein 2015
2015
Loc

Potemnemus scabrosus (

Olivier 1790: 294
Loc

Potemnemus loriai

Breuning 1956: 245
Loc

Potemnemus trituberculatus

Breuning 1942: 120
Loc

Potemnemus trituberculatus

Breuning 1942: 120
Loc

Potemnemus loriai

Breuning 1956: 245