Scaphomonus, Viraktamath, 2009

Key to species (males) of Scaphomonus View in CoL

1. Aedeagus with pair of spine-like apical processes ( Fig. 2E–F View Fig ); style with apophysis longer than section of shank based of lateral lobe ( Fig. 2G View Fig ) ( 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 View Fig ); basal apodeme long ( Fig. 1B View Fig ) ( India) ............................................................................. S. arcuatus ( Viraktamath & Mohan, 1993) View in CoL

– 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 View Fig ) ........................................................................................... S. vateriae (Viraktamath, 2009) View in CoL

– 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 View Fig ); basal apodeme comprising two diverging basal arms ( Fig. 1F View Fig ) ( China) ................................................................................. S. widestyleus ( Li, 2011) View in CoL

– 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 View Fig ) ( India) ...................................................... .................................................................................... S. quadrifidus ( Viraktamath & Mohan, 1993) View in CoL

– 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) View in CoL

– 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) View in CoL

– Pygofer process not strongly curved dorsally; connective stem shorter than arms .......................... 8

8. Base of aedeagus broad in lateral ( Fig. 1N View Fig ), processes broad in ventral view ( Fig. 1D View Fig ) ( India) ........................................................................ S. malnadicus ( Viraktamath & Mohan, 1993) View in CoL

– Base of aedeagus narrow in lateral view ( Fig. 1P View Fig ), processes narrow in posterior view ( Fig. 1O View Fig ) ( India) ........................................................................ S. agumbensis ( Viraktamath & Mohan, 1993) View in CoL