Austrocyphon tomweiri, Zwick, Peter, 2013

Zwick, Peter, 2013, Australian Marsh Beetles (Coleoptera: Scirtidae) 4. Two new genera, Austrocyphon and Tasmanocyphon, Zootaxa 3706 (1), pp. 1-74 : 52-53

Austrocyphon tomweiri , sp. n.

( Figs. 167–173 )

Type material. Holotype ♂, paratype 1♂, 15.38S, 126.15E, CALM site 28/3 4 km W of King Cascade W.A. 12– 16 June 1988 T.A.Weir / at light closed forest ( ANIC).

Habitus. BL 2.1 mm, BL/BW 1.5. Pronotum wide, elytra broadly oval. Uniformly light brown. Antennae stout, distal flagellar segments barely twice as long as wide at tip.

Male. T8 conical, caudal margin narrow, with V-shaped notch. Bare, except some small setae along sides and some longer ones caudally. Apodemes little longer than plate, front ends slightly in-curved. S8 a feeble U-shaped sclerite band with a few hairs at tips.

Plate of T9 completely divided, apodemes straight, strong, connecting sclerite bridge narrow. Apodemes caudally continued as flat narrow straight rods with subapical serrations and a short point on outer edge. A slender pointed sclerite with some asperities along inner edge articulates baso-laterally on each rod. Plate of S9 ovoid, the serrate caudal edge notched. The narrow base formed by anteriorly connected apodemes.

Pala of penis very narrow, twice as long as the caudal part. Fused parameroids not flanged. The trigonium is bent forward; in extended condition it would almost fill the membranous foramen. Centema a sharp strong hook, some spicules next to it.

Tegmen with slender tongue-shaped base, the undivided part occupies 1/3 of total length. The base forks into two slender parameres with spatulate soft tips with recurved hooklet.

Female. Unknown.

Note. No other species possesses an additional articulated appendage on the rod of T9.

Etymology. Named for the collector, Tom A. Weir, formerly senior curator of insects at ANIC, Canberra, who generously supported my study.

Figures

FIGURES 167 – 173. A ustrocyphon tomweiri sp. n., male. 167, T 8 and S 8; 168, T 9; 169, one half of T 9, enlarged; 170, penis, oblique lateral view; 171, enlarged caudal part of same; 172, S 9; 173, tegmen and parameres. 169 and 171 not to scale, the others to the same scale.