Check-list of Drabescus species from Papua New Guinea

bicornis n. sp.

bifurcatus n. sp.

brevispinus n. sp.

brunneus Evans, 1972: 198 –199, fig. 11j; Zhang & Webb, 1996, figs 431–435, 519. feraminensis Evans, 1972: 198, fig. 11h; Zhang & Webb, 1996, figs 446–449, 534.

gressitti Evans, 1972: 198, figs 11c–e; Zhang & Webb, 1996, figs 436–439, 535.

Key to species of Drabescus from Papua New Guinea (3)

1. Aedeagus without basal processes................................................................................................................................ 2 Aedeagus with one or more basal processes ................................................................................................................ 4 2. Aedeagal shaft bifurcate at apex in lateral view (Fig. 3 C) ................................................. Drabescus bifurcatus n. sp. Aedeagal shaft not bifurcate in lateral view ................................................................................................................. 3 3. Pygofer with long lateral process ventroposteriorly, valve ligulate (Figs 2 A, 2B) .......... Drabescus longispinus n. sp. Pygofer without processes, valve semicircular (see Figs 450, 455, Zhang and Webb,1996) ..... Drabescus sirunkensis 4. Aedeagus with one or two long processes from base of long preatrium ..................................................................... 5 Aedeagus with short to long processes from near base of shaft ................................................................................... 7 5. Aedeagus with single basal process (see Fig. 447, Zhang and Webb,1996) .......................... Drabescus feraminensis Aedeagus with pair of basal processes ......................................................................................................................... 6 6. Aedeagal processes directed posteriorly, straight in lateral view (Fig. 4 C) .......................... Drabescus bicornis n. sp. Aedeagal processes curved basally, each with fine sinuate line dorsally (Fig. 5 C) ........... Drabescus wauensis n. sp. 7. Aedeagus with basal processes extending to level with apex of shaft (see Figs 437, 438, Zhang and Webb,1996)...... ......................................................................................................................................................... Drabescus gressitti Aedeagus with processes extending well beyond apex of shaft. .................................................................................. 8 8. Aedeagal processes long; style apical process long (see Figs 432–434, Zhang and Webb,1996) ................................. ....................................................................................................................................................... Drabescus brunneus Aedeagal processes moderately long and robust (Fig, 6C); style apical process short (Fig. 6E)................................... .......................................................................................................................................... Drabescus brevispinus n. sp.