1.	Wing mostly or completely pale; relatively large species (ca. 8.0–10.0 mm forewing length); hypocauda present as a relatively short, blunt process	2
–	Wing dark infuscate to stark maculate; size variable, but usually less than 9.0 mm forewing length; hypocauda as elongate process (rarely greatly reduced to a knob)	3
2.	Wing with costal field dark	Stenobiella kaikai Aspöck & Aspöck
–	Wing uniformly pale	Stenobiella arrunja Aspöck & Aspöck
3.	Male paramere-mediuncus complex relatively small (cf. Aspöck and Aspöck 1984: figs 21, 31)	4
–	Male paramere-mediuncus complex relatively large (Fig. 3A–B)	5
4.	Black scale-like setae present on both wings	Stenobiella cardaleae Aspöck & Aspöck
–	Black scale-like setae absent on both wings	Stenobiella muellerorum Aspöck & Aspöck
5.	Female hypocauda knob-like; spermatheca large; paramere-mediuncus complex shape as in Aspöck and Aspöck (1984: fig. 11)	Stenobiella pindana Aspöck & Aspöck
–	Female hypocauda elongate; spermatheca smaller; paramere-mediuncus complex shape as in Figure 3 A–C	6
6.	Scales on forewing present	Stenobiella moma Aspöck & Aspöck
–	Scales on forewing absent	7
7.	Wing largely uniform infuscate but not distinctly maculate	Stenobiella pulla Kimmins, Stenobiella gallardi Tillyard, Stenobiella hirsutissima Tillyard
–	Wing distinctly maculate	8
8.	Costal field with alternating dark and pale regions to forewing tip (cf. Aspöck and Aspöck 1984: fig. 46–47); hypandrium apex relatively tapered; paramere-mediuncus shape as in Aspöck and Aspöck 1984: figs 3–4 (Northern Territory)	Stenobiella theischingerorum Aspöck & Aspöck
–	Costal field with alternating dark and pale regions to forewing tip but with distinct pale area midway (Fig. 2A); hypandrium apex not as acutely tapered; paramere-mediuncus shape as in Fig. 3A–C (New South Wales)	Stenobiella variola sp. n.