Shelfordina Hebard 1929

Key to known Australian species of Shelfordina (based on males) 1 Pronotum intensively marked (Figs 5A, B). Frons very pale. Male subgenital plate (Fig. 5D) with prominent median lobe; styles slightly longer than accessory styles; tarsal claws serrate......... (The Orchid Cockroach) Shelfordina orchidae (Asahina) (Australia, Japan and probably other countries where orchids are grown and moved about) - Without above combination of characters.................................................................. 2 2 Occurring in southern portion of Cape York Peninsula, Qld.................................................... 3 - Occurring in northern portion of Cape York Peninsula, Qld.................................................... 5 3(2) Accessory styles short, bulbous, apically divided); styles longer than accessory styles (Fig. 4G, modified from Roth 1990b). Tegmina and wings extending to but not beyond end of abdomen................................................................................ (Cook’s Shelfordina) Shelfordina cooki Roth (Mt Bartle Frere, Upper Boulder, Qld.) - Without above combination of characters.................................................................. 4 4(3) Accessory styles slender, divided, each of similar shape (Fig. 7D).................................................................................................... Shelfordina kuranda Rentz & Su, sp. nov. (Kuranda, Qld.) - Accessory styles large, grotesque, antler-like, not bilaterally symmetrical (Fig. 3E), True styles minute............................................................. Shelfordina oxystyla Rentz, Field, Su, sp. nov, (Daintree region, Qld.) 5(2) Accessory styles curved outwards, with 2–3 small teeth (Fig. 4C). Eighth abdominal tergite not enlarged and without scattered setae............................ (Mt Tozer Shelfordina) Shelfordina tozerensis Roth (Mt Tozer, Bellenden Ker, Qld.) - Characters not as above................................................................................ 6 6(5) Inter-stylar margin of subgenital plate with a pair of widely separated setal brushes (Fig. 4B)...................................................... (Yeates’ Shelfordina) Shelfordina yeatesi Roth (Daintree region, Mt Bellenden Ker, Qld.) - Interstylar margin without brushes. Accessory styles large, not bilaterally symmetrical, (Fig. 4F); true styles longer than accessory styles............................... (Roberts’ Shelfordina) Shelfordina robertsi Roth (Mt Finnigan, Qld.)