Scaphomonus Viraktamath 2009

Key to species (males) of Scaphomonus 1. Aedeagus with pair of spine-like apical processes (Fig. 2E–F); style with apophysis longer than section of shank based of lateral lobe (Fig. 2G) (Sarawak, Sabah) .................. S. bispinosus sp. nov. – Aedeagus without pair of spine-like apical processes; style with apophysis shorter than section of shank based of lateral lobe ................................................................................................................ 2 2. Aedeagus with very long and narrow apically bifid shaft (Fig. 1A); basal apodeme long (Fig. 1B) (India) ............................................................................. S. arcuatus (Viraktamath & Mohan, 1993) – Aedeagus with shaft and basal apodeme short to long; apex of shaft not bifid ................................ 3 3. Aedeagus with shaft long, curved posteriorly; basal apodeme longer than half length of shaft (Fig. 1D) ........................................................................................... S. vateriae (Viraktamath, 2009) – Aedeagus with shaft short to moderately long, curved dorsally; basal apodeme half or less that half length of shaft ................................................................................................................................... 4 4. Aedeagal processes directed caudally (Fig. 1E); basal apodeme comprising two diverging basal arms (Fig. 1F) (China) ................................................................................. S. widestyleus (Li, 2011) – Aedeagal processes directed towards base of aedeagus in lateral view; basal apodeme not comprising two diverging basal arms .................................................................................................................. 5 5. Aedeagus with two pair of apical processes (Fig. 1G–H) (India) ...................................................... .................................................................................... S. quadrifidus (Viraktamath & Mohan, 1993) – Aedeagus with a single pair of apical processes ............................................................................... 6 6. Pygofer with caudal process absent; connective with stem much longer than arms (India) .............. ........................................................................................... S. freytagi (Viraktamath & Mohan, 1993) – Pygofer with caudal process present; connective stem shorter to slightly longer than arms ............ 7 7. Pygofer process strongly curved dorsally; connective stem slightly longer than arms (India) .......... .............................................................................................................. S. redundans (Distant, 1918) – Pygofer process not strongly curved dorsally; connective stem shorter than arms .......................... 8 8. Base of aedeagus broad in lateral (Fig. 1N), processes broad in ventral view (Fig. 1D) (India) ........................................................................ S. malnadicus (Viraktamath & Mohan, 1993) – Base of aedeagus narrow in lateral view (Fig. 1P), processes narrow in posterior view (Fig. 1O) (India) ........................................................................ S. agumbensis (Viraktamath & Mohan, 1993)