Otostigmus (Otostigmus) xizangensis n. sp., from China and a case of sexual dimorphism in the subgenus Otostigmus (Otostigmus) Porat, 1876 (Chilopoda, Scolopendromorpha, Scolopendridae)

Zootaxa. 2021 Dec 10;5081(2):295-300. doi: 10.11646/zootaxa.5081.2.8.

Abstract

Otostigmus (Otostigmus) xizangensis n. sp., a new species of subgenus Otostigmus Porat, 1876 from Xizang, China, is described and illustrated. The new species is diagnosed as follows: antennae 1719 articles (mainly 19), basal antennal articles cylindrical; forcipular tooth-plate with 4 teeth; tergites (5) 620 with complete paramedian sutures; well-developed lateral margination on tergites (6) 921; ultimate leg prefemora with four rows of spines, leg 20 with one tarsal spur. The coxopleural process of O. (O.) xizangensis n. sp. exhibits remarkable sexual dimorphism, being long and curved in females, short and straight in males.

MeSH terms

  • Animals
  • Arthropods*
  • Chilopoda*
  • China
  • Female
  • Male
  • Sex Characteristics