Austrocyphon lobatus, Zwick, Peter, 2013

Zwick, Peter, 2013, Australian Marsh Beetles (Coleoptera: Scirtidae) 4. Two new genera, Austrocyphon and Tasmanocyphon, Zootaxa 3706 (1), pp. 1-74 : 53

Austrocyphon lobatus , sp. n.

( Figs. 174–177 )

Type material. Holotype: ♂, LORIEN W.R. 3 km N Lansdowne/Taree NSW 14-27.Sept.1987 G.Williams ex r/f margin malaise trap. Paratypes: NSW: 2♂, Acacia Creek N.S.W., J.Armstrong (all ANIC).— QLD: 2♂, S.E.Queensland, Tambourine Mts 2–9.iv.1935; AUSTRALIA R.E.Turner B.M. 1935-240; Cyphon fenestratus Blackburn Id. J.Armstrong ( NHML); 1♂, Brisbane Q. 6.7. 62 E.A.Bernays ( QMSB, UQIC Reg. #88659, T169587).

Habitus. BL 2.2–2.5 mm, BL/BW 1.5. Regularly oval. Uniformly light to dark brown.

Male. T8 deeply excised, ending in two inwardly curved sparsely pilose lobes; apodemes long, connected by a distinct arched sclerite. S8 a simple U-shaped arch, no setae noticed.

T9 completely divided, only a short bridge between the lateral rods remains. Lateral rods barely thicker than basal apodemes, each ending in a spinulose slightly club-shaped portion with terminal spine. S9 elongate oval, well sclerotized, pilose apex narrow, notched.

Penis slender, basal portion much longer than caudal portion which has gently angled sides and a blunt tip. Trigonium nearly filling the membranous foramen. Centema distinct, no apical spicules. Parameres are simple slender rods arising from a narrow common base, apices with membranous flange.

Female. Unknown.

Etymology. The name is a Latin adjective describing the lobed tergite 8.

Figures

FIGURES 174 – 177. Austrocyphon lobatus sp. n., male. 174, penis; 175, S 9; 176, T 8 and S 8; 177, T 9, tegmen, and parameres, with enlarged apex of rod of T 9. Figs. 174, 175 to the left, 176, 177 to the right scale; apex of T 9 not to scale.