Uracanthus corrugicollis Lea, 1917a

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 : 69-70

Uracanthus corrugicollis Lea, 1917a

(Figs 53, 91, 113)

Uracanthus corrugicollis Lea, 1917a: 742 .— McKeown, 1947: 63.

Description

Male. Body length, 25.26 mm; width, 5.41 mm.

Colour (Fig. 53). Body reddish brown with head, thorax, and basal and apical elytra darker. Head, pronotum and elytra covered with fairly dense, more or less evenly distributed, whitish pubescence; pubescence on elytra generally shorter.

Head. Postclypeus subtriangular and flattened, with fairly dense coarse punctures; frontoclypeal suture deep and wide in middle; distance between lower lobes of eyes 1.8 × as long as distance between upper lobes of eyes; distance between upper lobes of eyes 1.25 × as long as distance between eyes on ventral side; genal length 0.19 × as long as head width immediately below eyes. Antennae largely damaged.

Thorax and abdomen. Pronotum 0.94 × as long as width, rounded with a small process at each side; posterior margin 1.22 × as wide as anterior margin; pronotal disc without distinct nodules in middle area; disc and side strongly rugose transversely. Scutellum semicircular, with sparse pubescence. Elytra 5.26 × as long as prothorax and 3.44 × as long as shoulder width; basal 1/3 with coarsely punctures; apex more or less rounded at margin and with a small spine at suture. Apex of terminal sternite rounded or slightly truncate.

Male terminalia. Apex of ventral median lobe emarginate and apex of dorsal lobe with rounded; ventral lobe distinctly longer than dorsal lobe; spined region of internal sac divided into two sections; first section with sparse short simple spines on sides near base; second section with fairly dense long simple spines; unspined gap between first and second section above as long as second section ( Fig. 91a). Eighth sternite rounded at side, shallowly emarginate at apex, with long and fairly long setae arising terminally; ventral surface with sparse cloud-like processes ( Fig. 91b). Eighth tergite rounded at apex, with fairly dense simple spines and multi- branched spine on surface ( Fig. 91c). Paramere long, 2.5 × as long as wide, cylindrical in shape, apex rounded with long and short setae ( Fig. 91d).

Female. Unknown.

Distribution Southwestern Western Australia ( Fig. 113).

Comments

This species differ from others species of Uracanthus in having very short genal length; pubescence on the elytra uniform without any line or stripe of denser pubescence. No other specimen matches the type.

Material examined

Holotype. ♂. WA: Mullewa (28º26'S, 115º35'E), Miss J. F. May; bearing a name label on which ‘TYPE’ was written in red; 8 segments of left antenna and 8 segment of right antenna damaged ( SAM).