Scolopocryptops species

Xiao, Shuqing, Chen, Huiming & Di, Zhiyong, 2021, Scolopocryptops longipes sp. nov., a troglobitic scolopocryptopine centipede (Chilopoda: Scolopendromorpha: Scolopocryptopidae) from China, Zootaxa 5082 (1), pp. 87-94 : 92

Key to the Chinese Scolopocryptops species

(based on Chao and Chang (2003, 2008); Qiao et al. (2021); Schileyko (2014); Shelley (2002); Song et al. (2004))

1. Length of ultimate legs (from prefemur to pretarsus) up to 40% of body length.................................... 2

- Length of ultimate legs (from prefemur to pretarsus) less than a third of body length................................ 3

2. Cephalic plate without margination; LL1–22 with sparse long setae ( Qiao et al. 2021: Figs 8 , 13–16 ).......... S. zhijinensis

- Cephalic plate with margination; LL1–22 almost glabrous, only with scattered fine hairs.............. S. longipes sp. nov.

3. Short coxopleural process; anterior margin of forcipular coxosternite with a pair of chitinous crest ( Chao and Chang, 2008: Fig. 2A & B )...................................................................................... S. curtus

- Long coxopleural process; anterior margin of forcipular coxosternite without chitinous crest.......................... 4

4. Cephalic plate without margination ( Schileyko, 2014: Fig. 4 )....................................... S. melanostoma

- Cephalic plate with margination.......................................................................... 5

5. 2nd antennomere moderately to densely hirsute dorsad........................................................ 6

- 2nd antennomere sparsely hirsute dorsad................................................................... 7

6. 2nd antennomere moderately hirsute dorsad; tergites with complete paramedian dorsal sutures ( Shelley, 2002: Figs 96–107).......................................................................................... S. rubiginosus

- 2nd antennomere densely hirsute dorsad; paramedian dorsal sutures incomplete throughout body ( Shelley, 2002: Figs 76–79)......................................................................................... S. sexspinosus

7. TT8–20 with complete paramedian sutures ( Song et al. 2004: Fig. 2E ).............................. S. nigrimaculatus

- Tergites without complete paramedian sutures.............................................................. 8

8. Cephalic plate and tergites 1, 22, 23 red. Rest of tergites, trunk legs and antennae grayish green; tibia and tarsi of ultimate legs with bushy setae......................................................................... S. capillipedatus

- Color generally orangish to brownish, with or without darkened spots; ultimate legs sparsely hirsute, setae scattered, never dense..................................................................................... S. spinicaudus

Figures

FIGURES 1–11. Scolopocryptops longipes Xiao, Chen & Di, sp. nov. Holotype (MHBU): 1: Habitus, dorsolateral view; 2: Habitus, ventrolateral view; 3: Cephalic plate and first five tergites; 4: Right antennae; 5: AA13–17 of right antenna; 6: TT7–13; 7: First eight sternites; 8: Leg 22 and ultimate legs; 9: Detail of leg 22 and ultimate legs, ventral view; 10: Detail of ultimate legs, dorsal view; 11: Tarsus 1 and tarsus 2 of ultimate legs. Scale bars for Figs 1 & 2 = 5 mm. Scale bars for Figs 3–11 = 2 mm.

FIGURES 12–20. Scolopocryptops longipes Xiao, Chen & Di, sp. nov. Holotype (MHBU): 12: Cephalic plate and tergite 1; 13: Forcipular coxosternite and first two sternites; 14: Tergite 22 and tergite of ultimate leg-bearing segment; 15: Ultimate legbearing segment; 16: Coxopleural pore field; 17: Ultimate leg-bearing segment, ventral view; 18: Tooth-plates; 19: Posterior of tergite 1, detail of tergite 2 and anterior of tergite 3; 20: Accessory spines of right leg 21. Scale bars for Figs 12–17 = 2 mm. Scale bars for Figs 18 & 19 = 1 mm. Scale bars for Fig. 20 = 0.5 mm.