Australian Marsh Beetles (Coleoptera: Scirtidae) 4. Two new genera, Austrocyphon and Tasmanocyphon Author Zwick, Peter text Zootaxa 2013 3706 1 1 74 journal article 10.11646/zootaxa.3706.1.1 a9befad7-4b65-4998-8e82-a00f933fdecb 1175-5326 284605 486DF839-3C97-4B16-9E2D-9E06F4D85F8F Austrocyphon charon , sp. n. (Figs. 32–37) Type material . Holotype ♂, 3♂ paratypes : Australia , VIC , Acheron R. at Narbethong, reared from larvae collected in late September 1972 , P.Zwick ( ANIC ). Additional material studied . Three females and several larval and one pupal exuviae on slides with the same data have no type status (PZ). Habitus . BL ♂ 2.6–2.8, ♀ 2.7–2.9 mm . Oval, BL/BW 1.6–1.7. Uniformly brown or the periphery of pronotum and shoulders diffusely yellow, rest of elytra ochre (juvenile specimens). Male . T9 plate divided into two narrow flat spikes. The caudolateral corners are gently curved claws. S9 spatulate, barely sclerotized, soft, with sparse fine pilosity in caudal third. Penis: pala and the widely flanged distal part of approximately equal length. The foramen almost reaches the penis tip. Trigonium wide, parallel, tip abruptly narrowed to claw-shaped centema which is below a subterminal sclerotized knob. Spinules indistinct. Parameres (not shown) slender, straight acutely pointed struts as long as penis. Female . At the level of segment 8 the ovipositor shows some faint sclerotization and pigmentation in the shape of two caudally converging bands which merge and then separate again. Pupa, larva. See generic description, p. 11. Etymology . In Greek mythology Charon is the boatman taking the deceased into Hades, across the River Acheron. Acheron River happens to be the name of the type locality. A noun in apposition.