A new species of Pseudosinella Schäffer, 1897 (Collembola, Entomobryidae) from Hungary and Romania, with redescription of the related species Pseudosinellahuetheri Stomp, 1971.

Daniel Winkler,Márton Tamás Németh,Cristina Fiera

doi:10.3897/zookeys.1063.73094

Abstract

A new species of the genus Pseudosinella Schäffer, 1897 from Hungary and Romania is described and illustrated. Pseudosinellahartneraesp. nov. belongs to the group with 5+5 eyes, and can be identified by its unique labial chaetotaxy (M1m2rel1L2) within this group. Pseudosinellahuetheri Stomp, 1971, the closest related species sharing the same dorsal macrochaetae formula (R0R1R2001/00/0101+2), is also redescribed here based on the holotype. Comparative analysis between the two species and among other related species is provided.

Highlights

IntroductionPseudosinella Schäffer, 1897 is the largest collembolan genus, represented by 382 described species worldwide (Bellinger et al 2021), inhabiting a wide range of habitats from xerophilic areas (e.g., Traser et al 2006) through caves (e.g., Gisin and Gama 1969; Cipola et al 2020) to wetlands like alluvial forests (e.g., Buşmachiu et al 2017; Winkler and Mateos 2018)
Pseudosinella Schäffer, 1897 is the largest collembolan genus, represented by 382 described species worldwide (Bellinger et al 2021), inhabiting a wide range of habitats from xerophilic areas (e.g., Traser et al 2006) through caves (e.g., Gisin and Gama 1969; Cipola et al 2020) to wetlands like alluvial forests (e.g., Buşmachiu et al 2017; Winkler and Mateos 2018).As a part of soil biodiversity surveys in Hungary, the Bátorliget Pasture Nature Conservation Area was revisited in 2017
Considering the number of eyes (5+5) and the similar dorsal main macrochaetae distribution (R000/00/0101+2 or R001/00/0101+2), Pseudosinella hartnerae sp. nov. is close to P. altamirensis Baquero, Jordana, Labrada & Luque, 2020; P. horaki Rusek, 1985; P. huetheri; P. mauli Stomp, 1972; P. mucronata Gouze & Deharveng, 1987; and P. sandelsorum Gruia, 1977 (Table 1)

Summary

Introduction

Pseudosinella Schäffer, 1897 is the largest collembolan genus, represented by 382 described species worldwide (Bellinger et al 2021), inhabiting a wide range of habitats from xerophilic areas (e.g., Traser et al 2006) through caves (e.g., Gisin and Gama 1969; Cipola et al 2020) to wetlands like alluvial forests (e.g., Buşmachiu et al 2017; Winkler and Mateos 2018). With the help of the computer assisted Delta identification key using the combination of chaetotaxic and other characters, originally designed by Christiansen et al (1990) and regularly updated by Jordana et al (2021), Pseudosinella huetheri Stomp, 1971 was found to be its closest related species. On this occasion, Pseudosinella huetheri was examined and redescribed from the holotype preserved in the Natural History Museum of Geneva (Switzerland)

Material and methods

Discussion