Key to genera of the Austrocyphon -complex

1 Tip of prosternal keel widened, elongate-oval, pilose. Trigonium flat, simple, finger-shaped, without crest and lateral appendages, at best gently curved. At its end is a claw-shaped centema or a group of fine spicules. The frame formed by the parameroids around the trigonium may be flanged, with its sides curved dorsad. Tegmen and parameres form a thin U-shaped sclerite with delicate ends, no sclerotized hooks (e.g., Figs. 7, 22, 26, 69, 192, 202, 231).............. Austrocyphon, gen. n., p. 7

1' Prosternal keel apically not widened, blade-shaped over entire length, bare. Penis with large caudally widened spatulate plate formed by the fused parameroids which basolaterally support a curved, pointed appendage. Trigonium long, waisted, with serrate crest, in side view strongly angled. Paramere tip divided, one branch a membranous lobe, the other a recurved hook (Figs. 242–244)........................................................ Tasmanocyphon heideae, gen. et sp. n., p. 71