Barryfiliusa quinarius ( Britton, 1978 ) Allsopp, 2022

Allsopp, Peter G., 2022, Australian Melolonthini (Coleoptera: Scarabaeidae: Melolonthinae): reclassification of eight species to Antitrogus Burmeister, 1855 and Barryfilius new genus, Zootaxa 5213 (5), pp. 513-545 : 527-528

Barryfiliusa quinarius ( Britton, 1978) , new combination

( Figs. 17 , 23 , 25 )

Lepidiota quinaria Britton, 1978: 64 , figs. 193–194 (aedeagus), fig. 281F (head and pronotum); Weir et al. 2019: fig. 173 (head).

Type series. Holotype male in ANIC: Koombooloombah [Koombooloomba] [17.83°S, 145.60°E], Queensland, i.54, J.G. Brooks (examined).

Paratypes: 2♂, 14 m [miles, 22.5 km] up Whitfield Range Rd, Cairns , 5.i.1972, A Walford-Huggins ( ANIC) ; 1♂, Ringrose Nat. Pk. via Atherton [Mount Hypipamee National Park, 17.43°S, 145.49°E], 9.xii.1966, B. Cantrell ( UQIC) ; 1♂, Ravenshoe [17.61°S, 145.49°E], 11.i.1962, E.B. Britton ( ANIC) ; 1♂, Koombooloomba , i.1954, GB ( ANIC) ; 1♂, Koombooloomba , 5.i.1954, J.G. Brooks ( ANIC) .

Other material examined. AUSTRALIA: Queensland: 1♂, Mt Lewis [16.58°S, 145.28°E], 29.xii.1979, P. Carne ( ANIC) ; 1♂, 8 miles [12.9 km] up Whitfield Range Rd, Cairns [16.95°S, 145.71°E], Walford-Huggins ( QDAF) ; 2 ♂, 12 miles [19.3 km] Whitfield Range Rd, Cairns , 5.i.1972, A. & M. Walford-Huggins ( CMN) ; 3♂, Davies Creek , 20 km SE of Mareeba [16.98°S, 145.55°E], 25.xii.1988, H. & A. Howden ( CMN) ; 1♂, Mt Bartle Frere [17.38°S, 145.82°E], 7.x.1969, A. & M. Walford-Huggins ( CMN) ; 1♂, Cardwell Range, Upper Broadwater Creek Valley [18.50°S, 146.00°E], 17–21.xii.1984, Monteith, Thompson & Hamlet ( QM) ; 4♂, Kirrama Range, Douglas Creek Rd [18.70°S, 145.72°E], 9–12.xii.1986, Monteith, Thompson & Hamlet ( QM) .

Comment. The paratype from Ravenshoe was listed by Britton (1978) as in NHML.

Diagnosis. Male. Body 23–26 mm long; uniformly dark red-brown ( Fig. 17 ). Terminal palpomere of maxillary palp large, 1.15 mm long, elongate-elliptical (length:width 3.5:1), with large, flat, dull, elliptical depression on dorsal side. Clypeus ( Weir et al. 2019: fig. 173) with anterior face moderately deep, width 6.7x length; upper surface strongly transverse, width 3.7–4.0x length, anterior margin slightly indented in middle, with rounded angles; upper surface strongly concave, densely punctured, each of the broad, flat-bottomed punctures with a flattened, white seta about as long as radius of the puncture. Frons irregularly and coarsely punctured, each puncture with a short, white seta as long as the radius of the puncture; posterior quarter with only a few punctures and setae; antero-laterally with a few, recumbent, yellow setae above each eye. Antennae with 10 antennomeres, antennomere 3 elongate-cylindrical, antennomere 4 discoidal, antennomere 5 lamellate but lamella 0.33–0.5x long as that of antennomere 6, antennomere 6–10 lamellate, 2.8 mm long. Pronotum transverse, greatest width 1.50–1.65x length; anterior margin narrow, continuous and raised, punctate except in middle; lateral edges with a rounded, obtuse angle in middle, straight before angle and slightly concave after; posterior margin with a narrow, raised margin in middle; anterior and posterior angles slightly obtuse; surface uniformly punctured (approximately 17 mm-2), each puncture with minute, slightly elongate, white seta about as long as diameter of the puncture, punctures and setae denser along posterior margin and lateral margins behind angle. Scutellum with line of small punctures close to lateral edge, disc sparsely punctured with setae as on pronotum. Elytra sparsely but fairly uniformly punctured (approximately 10 mm-2) except on sutural interval, each puncture with stout, acutely pointed, white seta (0.06 mm long), as long as those on pronotum. Propygidium with a few punctures with short setae across posterior and lateral margins. Pygidium irregularly punctured, approximately 30 mm- 2 in middle; setae short but more elongate than on elytra, surface between punctures microreticulate, long, yellow setae on posterior-lateral margins. Ventral surface of thorax densely clothed with long, fine, yellow setae; pronotal hypemeron also with elongate, white setae near lateral margins. Teeth on outer edge of protibia long and acute. Ventrites sparsely clothed with short, setae similar to elytra; first visible ventrite with longer, yellow setae; penultimate ventrite with a few, scattered, long, yellow setae near posterior margin; terminal ventrite without lateral lobes. Aedeagus slightly asymmetrical, mid inner margin of one paramere crossing over the other ( Fig. 23 ).

Female. Unknown.

Distribution ( Fig. 25 ). Known from northeastern Queensland from Mount Lewis, south through the eastern and southern edges of the Atherton Tableland to the northern side of the Herbert River Valley. This species crosses the Black Mountain Corridor ( Bryant & Krosch 2016), a gap of 60 km between areas of higher elevation, that today retains pockets of rainforest interspersed among drier habitats, and indicates broader elevational and/or habitat tolerances different from those of B. contiguus , which is restricted to only one of the northeastern highland areas. Similar patterns occur in other groups of animals, including some Scarabaeidae (Reid 2000; Reid & Storey 2000).

Natural history. Adult males were mainly collected in December–January at light ( Britton 1978), with one record from October. One was collected on eucalypt flowers.

Figures

FIGURE 25. Known distribution of Barryfilius species in northeastern Queensland. Putative distribution of B. centralis (Britton, 1978) in the Northern Territory, and likely collection site in northeastern Queensland indicated at Mount Elliot or Mount Abbott.

FIGURES 14–18. Adult males of Barryfilius species, dorsal views. 14, Barryfilius contiguus (Britton, 1978); 15, B. laevis (Arrow, 1932); 16, B. lewisae (Britton, 1978); 17, B. quinarius (Britton, 1978); 18, B. vernus (Britton, 1978). Photographs by Greg Daniels.

FIGURES 19–24. Aedeagi of Barryfilius species. 19, Barryfilius centralis (Britton, 1978); 20, B. contiguus (Britton, 1978); 21, B. laevis (Arrow, 1932); 22, B. lewisae (Britton, 1978); 23, B. quinarius (Britton, 1978); 24, B. vernus (Britton, 1978). Figures reproduced from Britton (1978) (CSIRO, used with permission).