Shelfordina, Hebard, 1929

Rentz, David Cf, Field, Ashley Raymond & Su, You Ning, 2024, New species of the genus Shelfordina Hebard with taxonomic and ecological notes and a key to the known Australian species (Blattodea: Ectobiidae: Pseudophyllodromiinae), Zootaxa 5529 (1), pp. 110-122 : 114

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.)

Figures

FIGURE 3. Shelfordina oxystyla Rentz, Field, Su, sp. nov. A, left tegmen and wing, male. B, median phallomere. C, extruded genital complex. D, extruded genital complex. Note colour pattern of cercus. E, male subgenital plate. Note margin of plate between the styles.

FIGURE 4. Shelfordina species. A, B, S. yeatesi. A, tegmen and wing. B, male genitalia within subgenital plate. Note dense setae on each side of the margin of the subgenital plate. C, S. tozerensis. Note divergent accessory styles and elongate styles. D, S. tozerensis, frons. E, S. robertsi, frons. F, S. robertsi, subgenital plate and genitalia. Note margin of subgenital plate, accessory styles and normal styles. G, S. cooki, subgenital plate and genitalia. Note margin of subgenital plate, the minute accessory styles and the setal tufts. Figures modified from Roth 1990b.

FIGURE 5. Shelfordina orchidae. A, adult male abroad at night. Note markings on pronotum and dark brown diagonals on side of abdomen. B, adult female abroad at night in orchid collection. C, ventral view. Note absence of markings on legs and frons. D, male subgenital plate. Note styles (d), accessory styles (e) and margin of subgenital plate. E, nymph. Figure D modified from Roth 1990b.

FIGURE 7. Shelfordina kuranda Rentz & Su, sp. nov. A, adult male abroad at night. B, lateral view of abdomen. Note colour pattern and pustules. C, left foreleg. Note spinal pattern on ventral surface of femur. D, male subgenital plate. Note accessory styles and normal styles. E, male subgenital plate, lateral view. F, tip of male abdomen, ventral view. Note margin of tenth tergite and extruded median phallomere. G, tip of male abdomen, dorsal view. Note margin of tenth tergite, hook-like right phallomere and elongate median phallomere. H, left tegmen and wing, male.