Nornalup minusculus Park & Chandler

Park, Jong-Seok & Chandler, Donald S., 2017, Nornalup, a new genus of pselaphine beetle from southwestern Australia (Coleoptera, Staphylinidae, Pselaphinae, Faronitae), ZooKeys 695, pp. 111-121 : 118-119

Nornalup minusculus Park & Chandler sp. n. (Figs 1c, 2 e–f, 2i, 2l, 4c, 4 h–i, 5)

Type material.

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♀ (CBNUIC), 40 km ESE Manjimup, 15 VII 1980, jarrah forest litter, S. Peck & J. Peck; 1♂ (WAM), 83 km NE Albany, Stirling Range N. P., Toolbrunup Peak, 700 m, 27 XII 1976, litter at stream edge. u. marri, below 1st talus, J. B. Kethley, FMHD#76-537; 1♂ (FMNH), Giant Tingle Area, 8 km NE Walpole, 19 XII 1976, Karri & Acacia l., J. B. Kethley, FMHD#76-514; 1♀ (FMNH), Porongurup N. P., Wansborough Walk at The Pass, 450 m, 34°40.69'S, 117°51.245'E, 6 VIII 2004, karri forest ( Eucalyptus diversicolor ), mostly young-growth, berl., leaf & log litter, A. Newton & M. Thayer, FMHD#2004-147, 1116; 2♀♀ (WAM, 1♀ slide mounted), Stirling Range N. P., Toolbrunup Peak Tr., 480-520 m, 34°23.4'S, 118°03.3'E, 5 VIII 2004, Eucalyptus forest & mallee, berl., lead & log litter, D. Clarke & Grimbacher, FMHD#2004-146, 1115; 2♀♀ (ANIC, 1♀ slide mounted), 430-485 m, 34°23.5'S, 118°03.65'E, 5 VIII 2004, mallee Eucalyptus , berl., water-washed soil, 0-18 cm, D. Clarke, FMHD#2004-145, 1114; 1♀ (CBNUIC), 43 km E Albany, Two People’s Bay, Mt. Gardner, 150m, 1 I 1977, litter u. Hibbertia sp., J. B. Kethley, FMHD#77-88; 1♀ (ANIC), 220m, 1 I 1977, litter u. Marri, J. B. Kethley, FMHD#77-85.

Diagnosis.

This species can be distinguished from N. quadratus sp. n. by the longer elytra (Fig. 1c), presence of a median metasternal fovea, and the straight anterior margin of female abdominal sternite IX (Fig. 4c). This species is also separated from N. afoveatus sp. n. by its smaller body length (<2.0 mm, Fig. 1c).

Description.

Length 1.2-1.6 mm (Fig. 1c). Head. Male antennomeres 1-2 longer than wide, 3 subquadrate, 4-9 longer than wide, 10 subquadrate (Fig. 2e). Female antennomeres 1-2 longer than wide, 3 subquadrate, 4-6 longer than wide, 7-8 subquadrate, 9-10 weakly transverse (Fig. 2f). Thorax. Elytra rectangular and longer than wide (Fig. 1c). Hind wings fully developed. Metaventrite with median metasternal fovea. Abdomen. Female abdominal sternite IX with straight anterior margin (Fig. 4c). Aedeagus. Apex of male aedeagus with two small lobes, bent into an L-shape in lateral view (Fig. 4i).

Distribution.

Western Australia (Fig. 5: circles).

Habitat.

Most specimens of this species were collected by sifting leaf and log litter, with one taken from water-washed soil in Eucalyptus forests.