Uracanthus longicornis Lea, 1916

Thongphak, Duangrat & Wang, Qiao, 2007, Taxonomic revision of the longicorn beetle genus Uracanthus Hope 1833 (Coleoptera: Cerambycidae: Cerambycinae: Uracanthini) from Australia., Zootaxa 1569 (1569), pp. 1-139 : 47-49

Uracanthus longicornis Lea, 1916

(Figs 42, 80, 105)

Uracanthus longicornis Lea, 1916: 381 .— McKeown, 1947: 65.

Uracanthus daviumbus Gressitt, 1951: 24 .– Gressitt, 1959: 147, 148. syn. nov. Description

Male. Body length, 13.49–21.76 mm; width, 2.41–4.18 mm.

Colour (Fig. 42). Head and thorax dark reddish to blackish brown; antennae, legs, and basal elytra reddish brown; remaining parts reddish to yellowish brown. Head and pronotal disc with dense white pubescence; pronotum with a wide longitudinal stripe of very dense white pubescence on each side near ventral side; sterna and pleura with fairly dense white pubescence. Elytra with dense white pubescence on disc and a stripe of very dense white pubescence on margins, gradually diminishing towards apex. Legs and abdomen with dense white pubescence. Pubescence on head, thorax and elytral margins longer than that on the remaining parts. The glabrous longitudinal mark on pronotal disc may vary from very narrow to narrow. Body colour may vary from reddish brown to yellowish brown.

Head. Postclypeus semicircular, flattened and depressed toward to anteclypeus, with fairly dense coarse punctuate; frontoclypeal suture deep and narrow in middle; distance between lower lobes of eyes 2.09–2.27 × as long as distance between upper lobes of eyes; distance between upper lobes of eyes 1.37 –1.57 × as long as distance between eyes on ventral side; genal length 0.18–0.21 × as long as head width immediately below eyes. Antennae longer than body; segments 4–10 flattened and strongly produced on one side at apex.

Thorax and abdomen. Pronotum 1.02–1.38 × as long as width, rounded at side; posterior margin 1.11– 1.34 × as wide as anterior margin; pronotal disc and side strongly rugose transversely. Scutellum semicircular, with dense pubescence. Elytra 3.60–4.40 × as long as prothorax and 3.56–3.90 × as long as shoulder width; each elytron with 3 feeble longitudinal carinae; basal 1/3 of elytra coarsely punctate and the rest finely punctate diminishing toward apex; apex narrowly emarginate with a sharp spine at suture. However, in some specimens, the elytral apex varies from rounded to narrowly emarginate; the apical spine of the elytron varies from sharp to none. Apex of terminal sternite truncate.

Male terminalia. Apex of ventral median lobe slightly pointed and apex of dorsal lobe rounded; ventral lobe distinctly longer than dorsal lobe; spined region of internal sac almost occupying the whole internal sac, only leaving a very short basal unspined region; spined region divided into 3 sections: first section with fairly dense short and simple spines and some multi-branch spines; second section longer than first section, with dense long and simple spines on each side; third section with fairly dense simple spines and multi-branched spines ( Fig. 80a). Eighth sternite rounded or slightly obliquely truncate at sides, strongly emarginate at apex, with long setae arising terminally; ventral surface with fairly dense cloud-like processes ( Fig. 80b). Eighth tergite rounded to truncate and shallowly emarginate at apex; surface with sparse multi-branched spines near based and dense short simple spines basal-mid area ( Fig. 80c). Paramere robust, 2.0–2.1 × as long as wide, tapering toward to apex; apex rounded with long and short setae ( Fig. 80d).

Female. Body length, 19.78–24.78 mm; width, 3.65–4.63 mm.

Abdomen more robust, antennae and legs shorter; distance between lower lobes of eyes 1.69–2.22 × as long as distance between upper lobes of eyes; elytra 3.87–4.72 × as long as prothorax and 3.79–3.92 × as long as shoulder width.

Ovipositor and spermatheca. Ovipositor short; styli arising terminally with short hairs ( Fig. 80e). Spermatheca robust, heavily curved; spermathecal gland arising near base ( Fig. 80f).

Distribution Northern and southeastern Queensland ( Fig. 105) and souther New Guinea.

Biology

Hosts are unknown. Adults were collected by light trap during mid April to July and August to mid October.

Comments

This species resembles U. cupressianus and U. acutus but differs from those species in having the distance between the eyes on the ventral side closer, stronger transverse rugae on the pronotal disc, antennae more robust and longer and the apex of the elytra rounded and acutely spined at the suture.

Material examined

Uracanthus longicornis . Holotype. ♂. QLD: Coll. no. I. 5704; bearing a name label on which ‘TYPE’ was written in red ( SAM) . Paratypes. 3 ♂, QLD: 2 ♂, Coll. no. 18539 ( SAM) ; 1 ♂, Endeavour River ( SAM) .

Uracanthus daviumbus . Holotype. ♂. New Guinea: Lake Daviumbu , Fly River, Papua New Guinea, 19– 30.viii.1936, Archbold Expedition; bearing a red Holotype label ( AMNH) . Allotype. ♀. New Guinea: same locality as above; bearing a red allotype label ( AMNH) .

Other material examined. 72 ♂, 8 ♀. QLD: 9 ♂, Cooktown , 2.viii.1978, J. C. Le Sovef ( ANIC) ; 1 ♂, same locality as above but ( NMV) ; 2 ♂, Cairns , vi.1969, at MV light, R. Hardicb ( ANIC) ; 1 ♂, same locality as above but 28.vii.1941 ( ANIC) ; 1 ♂, same locality as above but v.1956, G. B. ( ANIC) ; 1 ♂, same locality as above but viii.1949, J. G. Brooks ( AM) ; 1 ♂, same locality as above but 1.iv.1935 ( QM) ; 1 ♂, Keating Gap (15° 30'S, 145°15'E), 3 km SW by S of Cooktown, 16.v.1977, Common & Edward ( ANIC) ; 7 ♂, Dividing Range, 15 km W. of Catain Billy Creek (15°18'S, 144° 51'E), Cape York Pen. , 5–9.vii.1975, J. F. R. Kerr ( ANIC) ; 1 ♂, Battle Camp Range , 26.VI.1993, at light, P. Zborowski & I. Naumann ( ANIC) ; 7 ♂, 7 km N of Hope Vale Mission (15°14'S, 145°07'E), Station Creek , 10.v.1981, A. Calder ( ANIC) ; 1 ♂, same locality as above but 4.x.1980, Tom Weir ( ANIC) ; 2 ♂, 14 km WN of Hope vale Mission (15°16'S, 144°59'E), 8– 10.x.1980, Tom Weir ( ANIC) ; 2 ♂, same locality as above but 7–10.v.1981, A. Calder ( ANIC) ; 1 ♂, same locality as above but 9.vii.1976, G. B. and S. R. Monteith ( QM) ; 1 ♂, 4 Km of WS Cooktown , 12.v.1980, I. F. B. Common & E. D. Edwards ( ANIC) ; 1 ♂, 1 Km W. of Cooktown (15°28'S, 145°15'E), 12–13.v.1981, A. Calder ( ANIC) ; 4 ♂, 15 km WNW of Bald Hill (13°43'S, 143°19'E), Mcllwralth Range , 27.vii.1989, weather station site, at night, Tom Weir ( ANIC) ; 1 ♂, Batavia Downs (12°40'S, 142°40'E), 22.vii.1992, at light, P. Zborowski & E. S. Nielsen ( ANIC) ; 4 ♂, Monton (12°27'S, 142°38'E), 27.vi.1992, at light, P. Zborowski & E. S. Nielsen ( ANIC) ; 1 ♂, Morton, Wenlock R., Cape York Pen. , 14.ix.1974, G. B. Monteith ( QM) ; 4 ♂, Turn off to Captain Billy Landing (11°41'S, 142°42'E), 20.viii.1992, at light, J. Cardale & P. Zboroski ( ANIC) ; 1 ♂, Heartland (11°45'S, 142°35'E), 26.vii.1992, P. Zborowski & E. S. Nielsen ( ANIC) ; 2 ♂, Archer River (13°33'S, 143°03'E), 28.vii.1992, at light, P. Zborowski and E.S. Nielsen ( ANIC) ; 1 ♂, 1 km WN of Rounded Hill (15°17'S, 145°13'E), 8–10.x.1980, Tom Weir ( ANIC) ; 1 ♂, NE of Mt. Webb (15°03'S, 145°09'E), 1– 3.x.1980, Tom Weir ( ANIC) ; 3 ♂, 2 km S of Horseshae lookout (23°46'S, 149°06'E), Black Down Tab , 23– 24.iv.1981, A. Clader ( ANIC) ; 1 ♂, Mt. Cook National Park (15°29'S, 145°16'E), 11–12.x.1980, T. Weir ( ANIC) ; 1 ♂, Edae Hill , x.1956, G.B. ( ANIC) ; 1 ♂, 8 km WN of Mt. Molloy , 21–22.v.1980, I. D. Naumann & T.C. Cardale ( ANIC) ; 1 ♂, Torrus Station , C. T. McNamara ( AM) ; 1 ♂, Brisbane , 25.x.1964, L. Grossett ( UQIC) ; 1 ♂, Iron Range, Cape York Penn. , 30.vi.–4.vii.1977, G. B. Monteith ( QM) ; 1 ♂, Edmonton , 5– 12.ix.1971, R. E. Mascord ( ANIC) ; 1 ♂, 3 km WS of Black Mt. Annan R., 27.vi.1980, T. Weir ( ANIC) ; 1 ♂, 2 ♀, Hann R., 2.vi.1970, J. C. Le Sovef ( ANIC) . 1 ♀, Monto Q, 17.vi.1978, J. C. Le Sovef ( ANIC) . Locality unknown : 1 ♀, N of Queensland ( SAM) ; 1 ♂, 4 ♀, Queensland ( NMV) .