Gymnopholus (Niphetoscapha) audax Gressitt,

Riedel, Alexander & Kilmaskossu, Agust, 2017, Revision of the subgenus Niphetoscapha Heller of Gymnopholus Heller (Coleoptera, Curculionoidea, Entiminae, Eupholini) and a new species with epizoic symbiosis from West New Guinea, Zootaxa 4254 (3), pp. 339-356: 348-349

publication ID

https://doi.org/10.11646/zootaxa.4254.3.3

publication LSID

lsid:zoobank.org:pub:88F93D05-41AD-4726-A16C-76CDE023B505

persistent identifier

http://treatment.plazi.org/id/291D9614-A967-B725-D9D5-F8C1FA96FA5F

treatment provided by

Plazi

scientific name

Gymnopholus (Niphetoscapha) audax Gressitt
status

 

Gymnopholus (Niphetoscapha) audax Gressitt 

( Figs. 1–2View FIGURES 1 – 4, 9View FIGURES 9 – 12, 13View FIGURES 13 – 16, 17View FIGURES 17 – 20, 21View FIGURES 21 – 24, 25, 28, 31View FIGURES 25 – 32, 42View FIGURE 42)

Gymnopholus (Symbiopholus) audax Gressitt, 1966: 254  (type locality: Itouda, Kamo valley).

Diagnosis. Body nude except antennal scrobe densely squamose. Pronotum punctate-granulate. Elytra with shallow transverse wrinkles; without distinct subapical tubercles.

Redescription. Males ( Fig. 1View FIGURES 1 – 4). Length. Total length 23.5–27.5 mm (n=6, x =25.8 ± 1.5); pronotum + elytron 18.5–21.7 mm (n=6, x =20.1 ± 1.1).

Color of integument black; body largely nude.

Head ( Fig. 9View FIGURES 9 – 12) dull, microreticulate, punctulate, with minute setae; between eyes 0.85 X as wide as vertical diameter of eye. Eyes weakly prominent from outline of head. Gena ca. half as long (0.53 X) as vertical diameter of eye.

Rostrum ( Fig. 9View FIGURES 9 – 12) 2.11–2.45 X longer than wide at base (n=6, x =2.27 ± 0.13); maximum width in front of antennal insertion 1.41–1.56 X width at base (n=6, x =1.47 ± 0.06). Dorsum with marked median impression and shallow pair of dorsolateral furrows nude; antennal scrobes densely clothed with scales and brown encrustations.

Antenna. Funicle + club 1.56–1.69 X length of scape (n=8, x =1.64 ± 0.05); club 3.88 X as long as wide.

Thorax. Pronotum 1.04 X longer than wide; sides subparallel, subapically weakly converging; disc nude, dull, microreticulate, towards sides weakly tuberculate, with coarse punctures; medially with shallow impression. Thoracic venter subglabrous, with sparse thin setae; mesoventrite and mesocoxae with dense recumbent setae.

Elytron 4.12–4.44 X longer than wide between humeri (n=6, x =4.25 ± 0.11), at greatest width 1.08–1.24 X wider than between humeri (n=6, x =1.14 ± 0.06); sides converging to apex; almost nude, subapically with sparse short setae; surface dull, with distinct coriaceous sculpture, without coarse wrinkles; intervals 4–6 in basal third with impression devoid of setae or associated glands; epipleural edge with very sparse fringe of setae; apical declivity at suture with blunt knob continued laterad by Omega-shaped ridge.

Legs. Surface coriaceous, densely provided with granules and stiff, suberect setae. Femora weakly clavate, moderately long; metafemur in repose not reaching elytral apex.

Abdomen. Ventrite 1–2 medially flat; with sparse, long setae; ventrite 5 flat, subapically densely setose. Penis ( Fig. 21View FIGURES 21 – 24) with asymmetrical apical tip moderately widened. Transfer apparatus ca. 1.7 X as long as wide at base.

Females ( Fig. 2View FIGURES 1 – 4). Same as males except: Length. Total length 24.5–31.0 mm (n=6, x =28.6 ± 2.6); pronotum + elytron 20.5–26.5 mm (n=6, x =23.1 ± 2.2). Rostrum 1.95–2.50 X longer than wide at base (n=6, x =2.27 ± 0.13); maximum width in front of antennal insertion 1.38–1.44 X width at base (n=6, x =1.41 ± 0.03). Elytron wider, 4.00–4.48 X longer than wide between humeri (n=6, x =4.24 ± 0.18), at greatest width 1.13–1.30 X wider than between humeri (n=6, x =1.20 ± 0.06); sides more rounded.

Intraspecific variation. Elytral surface nude or sparsely setose with suberect, brownish bristles; presumably, bristles worn-off in nude specimens; one single specimen with inconspicuous coverage of recumbent scales; surface smooth or markedly coriaceous.

Material examined. WEST NEW GUINEA, Paniai Reg.: 10 males, 7 females, Bilogay [E 137° 01´ S 03° 44´], 2100–2200 m, 22–30.XII.1995 ( ARC, SMNK)GoogleMaps  ; 2 males, Bilogay , Tigipigu, 2100–2400 m, 23.XII.1995 ( ARC, SMNK)  ; 1 male, 4 females, Bilogay—Bilai , 2100–2300 m, 1.I.1996 ( ARC, SMNK)  .

Other material recorded. WEST NEW GUINEA, Paniai Reg.: Holotype, male, Itouda  , 1550 m, Kamo valley , nr. Wissel Lakes, 13.VIII.1955 ( BPBM 6830View Materials) ( Gressitt, 1966); 1, Enarotali [E 136° 20´ S 03° 55´]GoogleMaps  , 1900 m, 25.VI.1962; 22, Araboebivak [E 136° 40´ S 03° 40´] and Paniai, 10.IX –4.XI.1939 ( Gressitt & Sedlacek, 1967).GoogleMaps 

Distribution ( Fig. 42View FIGURE 42). Paniai Reg. (Enarotali, Kamo valley, Bilai, Bilogay). Elevation: 1550–2100 m.

NEW

University of Newcastle

ARC

Atlantic Reference Centre

SMNK

Staatliches Museum fuer Naturkunde Karlsruhe (State Museum of Natural History)

BPBM

Bishop Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Curculionidae

Genus

Gymnopholus

Loc

Gymnopholus (Niphetoscapha) audax Gressitt

Riedel, Alexander & Kilmaskossu, Agust 2017
2017
Loc

Gymnopholus (Symbiopholus) audax

Gressitt 1966: 254
1966