Key to species of Abscondita using males

Modified from Ballantyne et al. (2013: 9)

1. Elytra uniformly dark brown (Fig. 96).......................................................... cerata (Olivier) Elytra pale brownish yellow with or without apical dark area................................................... 2

2. Elytra without apical dark area; MS may be dark brown (Fig. 97)............................................... 3 Elytra with apical dark brown area; MS pale brown (e.g. Fig. 99)............................................... 5

3. Pronotum pale without median darker markings; elytra pale greyish yellow, subparallel sided; elytral apices usually pale coloured due to accumulation of fat body; MN pale, coloured as for pronotum; MS sometimes very dark brown; aedeagal sheath sternite terminated by separate paired apically rounded hairy lobes (Ballantyne et al. 2013 fig. 19) (Fig. 97)................................................................................................. promelaena (Walker) Pronotum usually with darker median markings; elytra pale brown, convex sided; elytral apices not paler coloured than remain- der; MN and MS uniformly mid brown; sheath sternite terminated either by separate lobes which are apically acute, or a single transverse lobe which is slightly emarginated in the middle and acute at its posterolateral corners..................... 4

4. Abdominal tergite 7, 8 almost black; aedeagal sheath sternite terminated by a single transverse medially emarginated projection (Figs 114−119)..................................................................... jerangau Nada sp. nov. Abdominal tergite 7, 8 deep orange to dark brown; aedeagal sheath sternite terminated by paired separate apically pointed lobes (Figs 120−138).............................................................. pallescens (Gorham) comb. nov.

5. Terminal abdominal tergites pale brown or yellow........................................................... 6 Terminal abdominal tergites black........................................................................ 7

6. 10.3–12.9 mm long; basal abdominal ventrites orange yellow and devoid of dark markings (Ballantyne et al. 2013 fig. 2) (Figs 99, 100)................................................................................. anceyi (Olivier) 7.8–10.7 mm long; basal abdominal ventrites with dark markings at sides (Ballantyne et al. 2013 fig. 18)..................................................................................................... perplexa (Walker)

7. Aedeagal sheath sternite terminated by two elongate hairy lobes (Ballantyne et al. 2013 fig. 21); V5 usually pale coloured in middle (Fig. 98)........................................................................ terminalis (Olivier) Aedeagal sheath terminated by a single lobe; V5 either all black or with diffuse brown markings...................... 8

8. Aedeagal sheath sternite terminated by a wide lobe which diverges at the posterolateral corners which are either rounded or acute; (Ballantyne et al. 2013 Fig. 10); V5 always completely dark coloured (Ballantyne et al. 2013 Fig. 7)... chinensis (L.) Aedeagal sheath terminated by a single narrow lobe with narrowed acute corners which turn upwards and are not usually visible from beneath; V5 may be brown marked, or pale with darker markings at sides; V5 never very dark brown (Figs 101−113).................................................................................. berembun Nada sp. nov.