Research Article |
Corresponding author: Jong-Seok Park ( jpark16@cbnu.ac.kr ) Academic editor: Zi-Wei Yin
© 2017 Jong-Seok Park, Donald S. Chandler.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Park J-S, Chandler DS (2017) Nornalup, a new genus of pselaphine beetle from southwestern Australia (Coleoptera, Staphylinidae, Pselaphinae, Faronitae). ZooKeys 695: 111-121. https://doi.org/10.3897/zookeys.695.19906
|
A new genus and three new species of the southwestern Australian pselaphine beetles belonging to the supertribe Faronitae are described: Nornalup Park & Chandler, gen. n., based on Nornalup afoveatus Park & Chandler, sp. n., Nornalup quadratus Park & Chandler, sp. n., and Nornalup minusculus Park & Chandler, sp. n. Illustrations of their habitus and major diagnostic characters are provided, as well as distribution maps and a key to species.
Biodiversity, biogeography, Faronini , taxonomy, Western Australia
Two faronite genera, Sagola Sharp, 1874 with nine species and Logasa Chandler, 2001 with three species are known from Australia (
In the initial steps of revising the Australian faronite fauna, which includes numerous undescribed species (
Thirty-six specimens were examined from the Field Museum of Natural History (
Nornalup afoveatus Park and Chandler, sp. n., herein designated.
Members of this genus are easily separated from other faronite genera by the following combination of characters: rostrum separated by distinct frontal sulcus (Fig.
Small body size, 1.1–2.5 mm (Fig.
Antennae of Nornalup afoveatus sp. n. a male b female. Antennae of N. quadratus sp. n. c male d female. Antennae of N. minusculus sp. n. e male f female. Male heads, dorsal view g N. afoveatus sp. n. h N. quadratus sp. n. i N. minusculus sp. n. Female heads, dorsal view j N. afoveatus sp. n. k N. quadratus sp. n. l N. minusculus sp. n. Scale bars: 0.1 mm.
Female abdominal sternites IX, ventral view. a Nornalup afoveatus sp. n. b N. quadratus sp. n. c N. minusculus sp. n. Aedeagi of N. afoveatus sp. n. d dorsal view e lateral view. Aedeagi of N. quadratus sp. n. f dorsal view g lateral view. Aedeagi of N. minusculus sp. n. h dorsal view i lateral view. Scale bars: 0.1 mm.
Nornalup gen. n. is named for Nornalup, one of the national parks where one of the species was collected.
Australia.
Male specimens possess tubercles on antennomeres 4–11, but females have the tubercles on antennomeres 8–11 (Fig.
Nornalup gen. n. is found at the very southwestern corner of Australia, which is known as a global biodiversity hotspot (Hopper and Gioia 2004). This region has a higher average annual rainfall (300–1200 mm) than the surrounding more internal deserts of the mainland, and is mostly covered by Eucalytus forests (Hopper and Gioia 2004). Approximately 740 native vascular plants are known from this area, half of which are endemic (Hopper and Gioia 2004). All species are found in the karri (E. diversicolor F.Muell.), tingle (E. jacksonii Maiden), and jarrah (E. marginata Donn ex Sm.) forests unique to this area, where the distributions of three species do not overlap (Fig.
Based on thoracic foveal system, Nornalup gen. n. is closest to the genus Sagola Sharp. However, the frontal sulcus (Fig.
1 | Elytra quadrate and flattened (Fig. |
Nornalup quadratus sp. n. |
– | Elytra longer than wide and convex (Fig. |
2 |
2 | (1) Body length longer than 2.0 mm (Fig. |
N. afoveatus sp. n. |
– | Body length smaller than 2.0 mm (Fig. |
N. minusculus sp. n. |
Holotype. Australia: Western Australia (WA): 1♂, aedeagus dissected and mounted in euparal on clear plastic card, “Australia: Western Australia: Walpole-Nornalup N.P., Anderson Rd., near Valley of the Giants Rd., 120m, 34°59.48'S, 116°52.35'E, 2 VIII 2004, tingle-Allocasuarina-karri (Eucalyptus diversicolor) forest; FMHD#2004-137, berl., leaf & log litter, A. Newton, M. Thayer, et al. 1111”. Paratypes (n = 14; 7 males, 7 females). Australia: Western Australia: 1♀ (
This species can be distinguished from N. quadratus sp. n. by the longer elytra (Fig.
Length 2.0–2.5 mm (Fig.
Western Australia (Fig.
Specimens of this species were collected using flight intercept traps, or by sifting leaf, bark, or fungus litter in Eucalyptus forests.
Holotype. Australia: Western Australia (WA): 1♂, aedeagus dissected and mounted in euparal on clear plastic card, “Australia: Western Australia: Avon Valley N.P., 1.3 km from entrance, 420m, 31°38.79'S, 116°17.94'E, 27 VII 2004, marris-jarrah (Eucalyptus calophylla-E. marginata) woodland; FMHD#2004-106, berl., leaf & log litter, A. Newton, D. Clarke, A. Solodovnikov 1102”. Paratypes (n = 8; 4 males, 4 females). Australia: Western Australia: 2♂♂ 2♀♀ (1♂ 1♀
This species can be distinguished from N. afoveatus sp. n. by the quadrate elytra (Fig.
Length 1.1–1.5 mm (Fig.
Western Australia (Fig.
Specimens of this species were collected using flight intercept traps, or by sifting leaf, log, or Banksia grandis litter in Eucalyptus forests.
Both sexes of this species have the hind wings approximately half normal size when compared to the other species. However, four specimens were collected by flight intercept trap, so we speculate that this species still has the ability to fly.
Holotype. Australia: Western Australia (WA): 1♂, aedeagus dissected and mounted in euparal on clear plastic card, “Australia: Western Australia: Porongurup N.P., Nancy Peak Tr., Morgan’s View to The Pass, 450–600m, 34°40.8'S, 117°51.65'E, 6 VIII 2004, Eucalyptus; FMHD#2004-149, berl., leaf & log litter, Clarke & Grimbacher 1118”. Paratypes (n = 9; 3 males, 6 females). Australia: Western Australia: 1♂ 1♀ (
This species can be distinguished from N. quadratus sp. n. by the longer elytra (Fig.
Length 1.2–1.6 mm (Fig.
Western Australia (Fig.
Most specimens of this species were collected by sifting leaf and log litter, with one taken from water-washed soil in Eucalyptus forests.
We thank Margaret K. Thayer and Alfred Newton (Field Museum Natural History, Chicago, Illinois) for the loan of valuable specimens. Comments of anonymous reviewers and Chris Carlton (Louisiana State Arthropod Museum, Baton Rouge, Louisiana) guided substantial improvements to the manuscript. This work was supported by the research grant of the Chungbuk National University in 2017.