A new species of Arrhopalites Börner (Collembola, Symphypleona, Arrhopalitidae) from China, with a key to the Asian species of the caecus group

By

Nunes Godeiro, Nerivania
Zhang, Feng
Bellini, Bruno

Type

Article

Date of Publication

2022

Original Publication

ZooKeys

Volume

1102

Pages

163--176

Subjects

Appendiciphora , grassland , Katiannoidea , Springtails , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1102.81247

 

Abstract

The second species ofArrhopalitesfrom China is described and illustrated and an identification key to the Asian species of thecaecusgroup is presented.Arrhopalites brevicornissp. nov.is the eleventh species of thecaecusgroup recorded in Asia and it can be clearly differentiated by the unguiculus III with 2 internal teeth (0–1 in all other species). Also, the combination of antennae less than 2 times the size of the head, antennal segment IV without annulations, 1+1 eyes, dorsal head with 9 spines, 2+2 regular spines per side on the anal valves, circumanal chaetae without basal serrations, subanal appendage long and apically serrated, manubrium with 5+5, and dorsal dens with 16 chaetae is unique among the Asian species of thecaecusgroup.