Scolopocryptops, Newport, 1844

Le, Son X., Schileyko, Arkady A. & Nguyen, Anh D., 2023, A review of Vietnamese Scolopocryptops Newport, 1844 (Chilopoda: Scolopendromorpha), with a description of S. hoanglieni n. sp. and the updated generic list of species, Zootaxa 5228 (4), pp. 441-447 : 437

An identification key to Scolopocryptops species of East Asia

1. LBS 7 with well-developed spiracles ( Figs 14D , 15E )....................................................... 2.

- LBS 7 lacking spiracles............................................................................... 3.

2. Ultimate tergite with median suture...................................... S. broelemanni broelemanni (East China)

- Ultimate tergite lacking median suture..................................... S. broelemanni esulcata (South Vietnam)

3. Cephalic plate with complete lateral margination........................................................... 7.

- Cephalic plate lacks lateral margination or this margination is much shortened.................................... 4.

4. Length of the ultimate leg up to 40% of body length.................................... S. zhijinensis (South China)

- Length of the ultimate leg less than a 30% of body length.................................................... 5.

5. Ultimate tergite lacks lateral margination...................................................... S. melanostoma ( Taiwan, Philippines, E Indonesia, Papua New Guinea, South Vietnam)

- Ultimate tergite with definite lateral margination........................................................... 6.

6. Cephalic plate lacks lateral margination; 3 basal antennal articles with sparse minute setae....... S. curtus ( Japan, Taiwan)

- Cephalic plate with very short, but definite tracks of lateral margination in posterior half; 1 basal antennal article with sparse minute setae........................................................................... S. elegans ( Japan)

7. Length of the ultimate leg more than 40% of body length; tarsus 1 and 2 of leg 22 each with well-developed spur.............................................................................................. S. longipes ( China)

- Length of the ultimate leg less than a 30% of body length; leg 22 with 1 tarsal spur at most.......................... 8.

8. Tergites 8–18(20) with complete paramedian sutures ( Fig. 2C )................................................ 9.

- Tergites without complete paramedian sutures ( Figs 5 DF, 8C)................................................ 10.

9. Tergites colored uniformly................................... S. rubiginosus ( Taiwan, China, Korea, Japan, Vietnam)

- Tergites with some accumulations of dark pigment............................ S. nigrimaculatus ( China, South Korea)

10. Tergites 6–20 with very characteristic deep “drop-like” longitudinal median depression bordered by paramedian keels (Figs 112CD, 12B)................................................................. S. hoanglieni n. sp. ( Vietnam)

- Tergites lacking deep “drop-like” longitudinal depression ( Figs 5 DF, 8C)....................................... 11.

11. Tergites 6–20 with four longitudinal keels............................................... S. quadristriatus ( Japan)

- Tergites lacking longitudinal keels...................................................................... 12.

12. Two basal antennal articles sparsely setose dorsally. Ultimate sternite tongue-shaped. Tibia and tarsus of ultimate leg ( Fig. 9D ) very densely setose............................................. S. capillipedatus ( Korea, Taiwan, Japan, Vietnam) + “ S. ogawai ” ( Japan) + ” S. mushashiensis ” ( Japan, South Korea)

- Two basal antennal articles virtually lacking setae dorsally. Ultimate sternite trapeziform. Distal articles of ultimate leg not setose ( Figs 6 AC), rarely with numerous setae ( Fig. 6E )........ S. spinicaudus ( Korea, China, Taiwan, Japan, Vietnam) + S. nipponicus ( Japan)

Figures

FIGURES 2A–F. Scolopocryptops rubiginosus C.L. Koch, 1878; SVR.PO.020 A head and LBS 1, dorsally; B head and forcipular segment, ventrally; C LBS 6–10, dorsally; D LBS 6–10, ventrally; Rc 6738 (ZMMU) E head and forcipular segment, ventrally; Rc 6686 (ZMMU) F LBS 7, 8 (right side), laterally.

FIGURES 5A–F. Scolopocryptops spinicaudus Wood, 1862; SVR.PO.202 A head + LBS 1–3, dorsally; B head, forcipular segment and LBS 1–3, ventrally; C LBS 8–12, ventrally; D LBS 8–12, dorsally; Rc 7165 (ZMMU) E articles 1–6 of right antenna, laterally; Rc 6614 (ZMMU) F LBS 16–23, dorso-laterally.

FIGURES 6A–F. Scolopocryptops spinicaudus Wood, 1862; SVR.PO.202 A LBS 23 and right ultimate leg, laterally; B LBS 21–23 and ultimate legs, ventrally; C right ultimate leg, medially; Rc 7497 (ZMMU) D LBS 7 and 8, laterally; Rc 7225 (ZMMU) E left ultimate leg, dorsally; Rc 7497 (ZMMU) F LBS 13–16, dorsally.

FIGURES 9A–D. Scolopocryptops capillipedatus (Takakuwa, 1938); SVR.PH.048 A LBS 21–23, dorsally; B LBS 21–23, laterally; C LBS 20–23, ventrally; D left ultimate leg, medially.

FIGURES 14A–G. Scolopocryptops broelemanni esulcata Attems, 1938; Syntype 1, MY 2063 (NHMW) (photo by Oliver Macek) A head + LBS 1–3, dorsally; B head and forcipular segment, ventrally; C general view, dorsally; D LBS 6–9 (left side), laterally; E LBS 22, 23, legs 21, 22 and basal articles of ultimate legs, ventrally; non-type specimen, MY 8714 (NHMW) F head + LBS 1–3, dorsally; G label of syntypes written by Chagas Junior.

FIGURES 15A–F. Scolopocryptops broelemanni esulcata Attems, 1938; Syntype 2, MY 2063 (NHMW) (photo by Oliver Macek) A head + LBS 1–3, dorsally; B head and forcipular segment, ventrally; C LBS 6–11, dorsally; D LBS 20–23, dorsally; E LBS 5–11 (right side), laterally; F LBS 21–23, ventrally.