Key to species of Paraidioscopus Maldonado-Capriles

1. Mesonotum with one large median round black spot, without black basal triangles (Fig. 1G).......................... 2

- Mesonotum without large median round black spot, either most of mesoscutum black (Figs 1A–C) or with black basal triangles (Fig. 1E)............................................................................................ 3

2. Head with black round spot near each eye, visible both in dorsal and facial view (Figs 1 CIJ); aedeagus with processes shorter than shaft in lateral view, apex of shaft hooked without round lobe (Xue & Zhang 218: Fig. 6D) (Philippines)................................................................................................. P. tagalicus (Baker)

- Head immaculate (Figs 1 GHL); aedeagus with processes longer than shaft, apex of shaft rounded (Figs 5 EFG) (Sri Lanka)................................................................................ P. unimaculatus (Melichar)

3. Forewing dark brown with longitudinal lemon yellow stripe along costa and claval commissure connected near base of wing forming a U-shaped marking (Figs 1 ABCD); aedeagal shaft sinuate with processes about half as long as shaft (Fig. 3E) (Andamans)...................................................................... P. andamanicus sp. nov.

- Forewing pale brown translucent, without such lemon yellow marking (Figs 1 EF); aedeagal shaft not sinuate, with processes 0.75 or more as long as shaft (Figs 4D–F) (India: Karnataka).................................. P. harrisi Viraktamath