Two new species of the genus Symphylella (Symphyla, Scolopendrellidae) from China and the significance of the frons chaetotaxy

Abstract

Symphylella macrochaetasp. nov. and Symphylella longispinasp. nov. from China are described and illustrated. Symphylella macrochaetasp. nov. is characterized by 10 extremely long macrosetae arranged as 4/4/2 on the frons, tergites with broad triangular processes, and 4+4 setae on the first tergite. Symphylella longispinasp. nov. is characterized by a thick and prominent labrum, distinctly long proximal spines on the mandible, eight macrosetae arranged as 4/2/2 on frons, 3+3 setae on first tergite, and narrow triangular processes on the tergites. Detailed comparisons of the new species with similar species are presented. In addition, the frons chaetotaxy of Symphylella is illustrated and discussed for the first time and proposed as a significant diagnostic character for the taxonomic study of the genus.

Description of the first species of Scutigerella (Symphyla, Scutigerellidae) from China, with mitogenomic and genetic divergence analysis

“…However, both taxonomic and molecular studies are widely missing. There are only about 250 species reported worldwide ( https://www.itis.gov/ ; Jin and Bu 2020 , 2023 ) and ten species recorded in China until now ( Bu and Jin 2018 ; Jin and Bu 2018 , 2019 , 2020 , 2023 ; Jin et al 2019 ). Only 65 mitochondrial gene sequences and two complete mitogenomes are available in GenBank (accessed in February 2023).…”