Key to adult males of Austropsyche Banks

1. Phallus bulbous distally, narrowly truncate and sclerotised apically; sharp, sclerotised, ventrally curving spine arising apicolaterally on abdominal segments IX/X, and second thread-like sclerotised process arising from internal apodeme (Fig. 67); mesal process on coxopodite of each gonopod about half length of its harpago (Figs 66–67, 94)...... Austropsyche morana sp. nov.

-. Phallus not bulbous distally, without sclerotised apex; abdominal segments IX/X with or without membranous plate or lobe apicolaterally, but without apicolateral sclerotised spine; mesal process on each coxopodite variable in length (e.g., Figs 52, 59, 63)................................................................................................. 2

2(1) Gonopods each with mesal process stout, apically roughly truncate, basal on coxopodite (Figs 68–69, 90–91).......................................................................................... Austropsyche kaputar sp. nov.

-. Gonopods each with mesal process narrow, conical or slender, curving to acute or irregular apex, apical or sub-apical on coxopodite (e.g., Figs 52, 59, 63)............................................................................ 3

3(2) Forewings each with median cell equal in length to discoidal cell (Figs 50, 78); gonopods each with mesal process apical on coxopodite (Figs 59, 61, 92, 93); with pair of slender sclerotised spines projecting distally (Figs 59–60, 61–62, 92–93), without short sclerotised spines subapically on phallus.............................................................. 4

-. Forewings each with median cell about 1.3x length of discoidal cell (e.g., Figs 49, 77); gonopods each with mesal process sub-

apical on coxopodite; without pair of slender, elongate, sclerotised spines as above (e.g., Figs 52, 63–65), but with short sclerotised spines on phallus (e.g., Figs 53, 56, 63–64, 87–88)....................................................... 5 4(3) Gonopods each with mesal process about 3/4 length of harpagone, slender, acute apically; small conical tubercle between mesal process and harpago (Figs 59, 92)............................................. Austropsyche acuta sp. nov.

-. Gonopods each with mesal process no more than half length of harpagone, variably blunt or pointed apically; without small conical tubercle between mesal process and harpago (Figs 61–62, 93).................... Austropsyche ambigua sp. nov.

5(3) Gonopods each with mesal process on coxopodite short, irregular in shape; sclerotised spines on phallus in ventral view straight; in ventral view, small rounded plate visible dorsal to gonopods, in lateral view apicomedial margin slightly produced (Figs 63–65, 88–89)........................................................ Austropsyche bifurcata (Kimmins)

-. Gonopods each with mesal process on coxopodite short, conical and apically acute in ventral view; sclerotised spines on phallus in ventral view curved; apex of phallus membranous, sometimes protruded; in ventral view membranous plates lateral to gonopods mesally produced posterad, in lateral view forming irregular midapicolateral lobe (Figs 53–55, 84–87)...................................................................................... Austropsyche victoriana Banks