Idioscopus

Checklist of Idioscopus species from China Idioscopus bibamulus Wang, Wang, Dai & Webb, 2022: 100, fig. 1. Distribution: China (Yunnan). Idioscopus bimaculatus (Pruthi, 1936): 102. Idiocerus bimaculatus Pruthi, 1936: 102, figs. 2, 2a. Idioscopus bimaculatus (Pruthi): Maldonado-Capriles, 1965: 244; Viraktamath, 1980: 227, figs. 1–6; Zhang & Li, 2012: 207, fig. 7. Idioscopus myrica Wang & Dai, 2018: 12–13, figs. 1–10, syn. nov. Distribution: China (Guizhou). Idioscopus clypealis (Lethierry, 1889): 252. Idiocerus clypealis Lethierry, 1889: 252. Idioscopus clypealis (Lethierry): Maldonado-Capriles, 1964: 92–93, figs. 6–9; Fletchwe & Dangerfield, 2002: 35, figs. 1–3, 7–10; Khatri & Webb, 2014: 282–284, fig. 5. Idioscopus taiwanus Huang & Maldonado-Cpariles, 1992: 5, figs. 3A–H. Synonymised by Wang, Wang, Dai & Webb, 2022: 105, fig. 4. Distribution: China (Yunnan, Fujian, Hainan, Taiwan). Idioscopus furcaprocessus Wang, Wang, Zhou & Dai, 2021: 376, figs. 1, 3A–E. Distribution: China (Yunnan). Idioscopus longiprocessus Wang, Wang, Zhou & Dai, 2021: 378, fig. 2. Distribution: China (Yunnan). Idioscopus nitellicus Kuoh & Fang, 1985: 190, figs. 8–16. Distribution: China (Yunnan). Idioscopus nitidulus (Walker, 1870): 322. Iassus nitidulus Walker, 1870: 322. Idioscopus nitidulus (Walker): Maldonado-Capriles, 1973: 181; Fletchwe & Dangerfield, 2002: 36, figs. 4–6, 11– 14; Khatri & Webb, 2014: 282, fig. 4. Distribution: China (Yunnan, Fujian, Guangxi, Taiwan, Hainan). Idioscopus recurvatus Kuoh & Fang, 1985: 189, figs. 1–7. Distribution: China (Yunnan). Idioscopus serratastylus Wang, Wang, Zhou & Dai, 2021: 378, fig. 3. Distribution: China (Yunnan). Idioscopus triprocessus sp. nov. Distribution: China (Shanxi, Guizhou). Idioscopus ventrispinus Wang, Wang, Dai & Webb, 2022: 102, figs. 2, 3F–J. Distribution: China (Yunnan). Idioscopus xanthomacula sp. nov. Distribution: China (Yunnan). Key to the species of Idioscopus from China 1 Aedeagus shaft with one pair of subapical processes.......................................................... 2 - Aedeagus shaft with two or three pairs of processes.......................................................... 6 2 Aedeagus shaft with processes strongly curved and directed terminally........................................... 3 - Aedeagus shaft with processes weakly curved and directed basally or laterally..................................... 4 3 Aedeagal shaft with a thick and long furcella on the subapical ventral margin (Figure 1C–D)............... I. bimaculatus - Aedeagal shaft without a furcella on the subapical ventral margin (Figure 1A–B)......................... .. I. bibamulus 4 Aedeagus processes with a pair of tooth-like projections on the side near the aedeagal shaft (Figure 1G–H). I. furcaprocessus - Aedeagus processes smooth, without tooth-like projections.................................................... 5 5 Aedeagal shaft sharp at the tip, with a short curved ventral process at base (Figure 1–J).................. I. longiprocessus - Aedeagal shaft flat and broadened at the tip, without ventral process at base (Figure 1Q–R)............... I. serratastylus 6 Aedeagus shaft with one pair of apical processes and two pairs of subapical processes (Figure 2G–H). I. triprocessus sp. nov. - Aedeagus shaft with two pairs of processes................................................................. 7 7 Aedeagus shaft with an unpaired long ventral process posteriorly near midlength (Figure 1S–T)............. I. ventrispinus - Aedeagus shaft without unpaired ventral process near midlength............................................... 8 8 Aedeagus shaft divaricate near the tip (Figure 3G–H)...................................... I. xanthomacula sp. nov. - Aedeagus shaft not divaricate near the tip.................................................................. 9 9 Aedeagus shaft with one pair of long and arcuately curved subapical processes and one pair of short processes above them (Figure 1O–P).............................................................................. I. recurvatus - Aedeagus shaft with two pairs of processes arising from same position.......................................... 10 10 Aedeagus processes located at the tip of aedeagus shaft (Figure 1M–N).................................. I. nitidulus - Aedeagus processes located subapically on aedeagus shaft................................................... ..11 11 Aedeagus processes slender and long, one pair extended ventrad of shaft base (Figure 1E–F).................. I. clypealis - Aedeagus processes short, not extended ventrad of shaft base (Figure 1K–L)............................. .. I. nitellicus