Uracanthus pertenuis 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 : 61-62

Uracanthus pertenuis Lea, 1916

(Figs 50, 88, 110)

Uracanthus pertenuis Lea, 1916: 374 .— McKeown, 1947: 66; Duffy, 1963:117.

Description

Male. Body length, 12.62–21.6 mm; width, 1.8–3.45 mm.

Colour (Fig. 50). Body reddish brown with head, thorax and basal elytra darker. Frons with sparse white pubescence, clypeus glabrous or with very sparse white pubescence. Antennal segments 3 to 10 with yellowish fringe. Pronotal disc with 2 broad longitudinal stripes of fairly dense white pubescence; prothorax with a longitudinal stripe of very dense white pubescence on each side near ventral side. Each elytron with 2 longitudinal stripes of dense white pubescence: 1 along suture starting from base, widest at base, and becoming narrower toward apex, and 1 along margin, starting from or behind shoulder, widest at base tapering toward apex; the rest of elytra with sparse white pubescence. Body colour varies from blackish brown to reddish brown.

Head. Postclypeus subtriangular, convex, smooth and shiny; frontoclypeal suture deep and wide in middle; distance between lower lobes of eyes 1.67–1.9 × as long as distance between upper lobes of eyes; distance between upper lobes of eyes 1.23–1.31 × as long as distance between eyes on ventral side; genal length 0.35– 0.39 × as long as head width immediately below eyes. Antennae as long as or slightly longer than body; segments 5–10 produced on one side at apex.

Thorax and abdomen. Pronotum 1.25–1.47 × as long as width, rounded at side; posterior margin 1.15– 1.35 × as wide as anterior margin; pronotal disc weakly binodulose in middle area; disc and side strongly rugose transversely. Scutellum semicircular, with sparse pubescence. Elytra 4.25–4.78 × as long as prothorax and 4.50–4.87 × as long as shoulder width; elytra finely punctate; elytral apex strongly bispinose with spine at margin distinctly longer than that at suture. The sutural spine at the elytral apex varies from a small to long but never longer than marginal spine. Apex of terminal sternite truncate or slightly emarginate.

Male terminalia. Apices of both ventral and dorsal median lobes rounded; dorsal lobe slightly longer than ventral lobe; spined region of internal sac divided into 2 sections: first section about as long as unspined gap between first and second sections, with fairly dense multi-branched spines and scale like spines; second section shorter than first section, with sparse short simple spines ( Fig. 88a). Eighth sternite obliquely truncate at sides, shallowly emarginate at apex, with fairly long setae arising terminally; ventral surface with cloud-like processes ( Fig. 88b). Eighth tergite shallowly emarginate at apex; surface with fairly dense basally-forked spines and simple spines ( Fig. 88c). Paramere robust, 2.0–2.09 × as long as wide; apex obliquely truncate with fairly dense long and short setae ( Fig. 88d).

Female. Body length, 15.57–22.69 mm; width, 2.34–3.50 mm.

Body more robust and broader; pubescent patterns on elytra similar to those in males; antennae shorter than body, without the fringe;

Ovipositor and spermatheca. Ovipositor relatively long; styli arising terminally with short and long hairs ( Fig. 88e). Spermatheca heavily curved; spermathecal gland short, arising near base ( Fig. 88f).

Distribution

Northeastern, southern and southeastern Queensland, northern, northeastern and southeastern New South Wales, eastern and southern Victoria, southern Tasmania, southeastern South Australia, and southwestern and southeastern Western Australia ( Fig. 110).

Biology

Known hosts are Acacia armata , and Loranthus sp. and A. oxycedrus . Adults were collected by light trap between September and April.

Comments

This species closely resembles U. parvus but differs in having the body more robust and longer; elytra of both sexes with denser and longer whitish pubescence along the suture and margin, and the elytral apex with the marginal spine always distinctly longer than the sutural spine.

Material examined

Holotype. ♂. VIC: no locality, Coll. no. I. 5488; bearing a name label on which ‘TYPE’ was written in red; abdomen damaged ( SAM).

Paratypes. 1 ♂, 1 ♀. TAS: 1 ♀, Hobart, Coll. no. I. 4504, A. M. Lea ( SAM). SA : 1 ♂, Goolwa, Old collection ( SAM) .

Other material examined: 37 ♂, 23 ♀. QLD: 1 ♂, 1 ♀, Brisbane (27º28'S, 153º01'E), 4.xi.1960, K. Roarao ( UQIC) ; 1 ♀, same locality as above but 15.iv.1949, W. Wetherall ( UQIC) ; 1 ♀, 16 km N of Boonah (27º60'S, 152º01'E), 27.ix.1986, C. Burwell ( UQIC) ; 1 ♂, Carnarvon National Park, Mount Moffatt section; Ranger Headquarters (25º00'122″S, 147º56'59″E), 1.xii.1987, MV light, J. Skevington, C. Lambkin & S. Evans ( UQIC) ; 1 ♂, Cunnamulla (28º04'S, 145º41'E), 22.xi.1938, N. Geary ( AM) ; 1 ♂, Rockhampton (23º22'S, 150º32'E) ( MAM) ; 1 ♀, Watalgan Range (24º40'S, 128º53'E), N of Bundaberg, 7.x.1972, H. Frauca ( ANIC) . NSW: 1 ♂, 5 mi S Mendooran (31º47'S, 149º17'E), Goonoo State Forest , 25.iv.1971, D. K. McAlpine ( AM) ; 1 ♂, Killara (33º45'S, 151º09'E), 20.xii.1924, Allowrie ( MAM) ; 2 ♂, Ropes Creek (29º55'S, 146º16'E) ( MAM) ; 1 ♀, Sydney , 24.i.1904 ( ASCU) ; 1 ♀, 15 km NE Ulan , 4.xii.1982, L. O'Donnell ( ANIC) . ACT: 1 ♂, Canberra (35º18'S, 149º08'E), at MV light, N. B. Tindale ( SAM) ; 1 ♂, same locality as above but 28.i.1988, B. J. Lepschi ( ANIC) ; 1 ♂, Black Mountain (35º18'S 149º08'E), 29–31.xii.1985, K. R. Pullen ( ANIC) ; 1 ♂, same locality as above but 31.xii.1951, L. Obinaick ( ANIC) ; 1 ♂, same locality as above but ii.1986, light trap, Z. Liepa ( ANIC) ; 1 ♂, same locality as above but 18.i.1956, light trap, P. B. Carne ( ANIC) ; 1 ♂, same locality as above but 28.i.1988, L. Obinaick ( ANIC) ; 1 ♀, Guabgahlin , 21.xii.1962, S. Baker ( SAM) . VIC: 3 ♂, 3 ♀, Baxter (38º11'S, 145º09'E), C. Oke ( NMV) ; 2 ♂, 1 ♀, Langwarrin (38º09'S 145º10'E), J. E. Dixon ( NMV) ; 1 ♂, same data as above but ( AM) ; 1 ♂, same locality as above but i.1914, C. French Collection ( NMV) ; 1 ♂, 1 ♀, same locality as above but 4.ii.1922, ex Acacia oxycedrus (NMV) ; 3 ♂, same locality as above but 5.ii.1922 ( NMV) ; 3 ♂, same locality as above but 12.ii.1922 ( NMV) ; 2 ♀, same data as above but ( VAIC) ; 1 ♂, Mallee (36º10'S, 146º54'E) ( VAIC) ; 1 ♂, Clayton (37º55'S, 145º07'E) ( NMV) ; 1 ♀, Victoria ( NMV) . SA: 1 ♂, Adelaide (34º55'S, 138º36'E), C. Watts ( SAM) ; 1 ♀, Wirrabara (33º01'S, 138º16'E), xi (no year), S. H. Curnow Collection ( SAM) ; 1 ♀, Gordon (32º07'S, 138º16'E), 5.v.1924, Hanson ( MAM) . TAS: 1 ♀, Tasmania, A. Simon ( SAM) . WA: 1 ♀, Beverley (32º06'S, 116º55'E), E. F. du Boulay ( SAM) ; 1 ♂, Marloo Stn, Wurarga , 1931–1941, A. Goerling ( ANIC) ; 1 ♀, Eucla (31º40'S, 128º53'E), 30.iv.1995 ( SAM) ; 1 ♂, Duke of Orleans (33º55'S, 122º35'E), Bay Caravan Park, Ablution block, 21.i.1995, A. F. Longbotton ( WAM) . Locality unknown : 1 ♀, no locality, S. R. E. Brock Collection donate ( ANIC) ; 1 ♀, no data ( QM) ; 1 ♂, G. 355 ( QDPI) ; 1 ♂, no data ( QDPI) ; 1 ♂, 1 ♀, no data ( NMV) .