Revisiting Szeptyckitheca Betsch & Weiner (Collembola, Symphypleona, Sminthuridae): new species, updated diagnoses, and a key

Betsch & Weiner is a genus of Sphyrothecinae (Sminthuridae) similar to Börner, with 13 nominal species. Most descriptions of taxa lack valuable data in face of the current taxonomy of Symphypleona. In this study the previously described species of the genus were surveyed, aiming to provide updat...

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Bibliographic Details
Published in:ZooKeys 2023-12, Vol.1186 (1), p.139-174
Main Authors: Bellini, Bruno Cavalcante, Oliveira, Mariana Fernandes De, Weiner, Wanda Maria, Nunes, Rudy Camilo, Medeiros, Gleyce Da Silva
Format: Article
Language:English
Subjects:
Abdomen
Analysis
Morphology (Animals)
New species
Sminthuridae
Software
Sphyrotheca
Spines
Symphypleona
Taxonomy
Zoology
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Description
Summary:Betsch & Weiner is a genus of Sphyrothecinae (Sminthuridae) similar to Börner, with 13 nominal species. Most descriptions of taxa lack valuable data in face of the current taxonomy of Symphypleona. In this study the previously described species of the genus were surveyed, aiming to provide updated diagnoses for them. Three species were also transferred to : Palacios-Vargas, Vázquez & Cuéllar, 2003, Palacios-Vargas, Vázquez & Cuéllar, 2003, and Betsch & Weiner, 2009, based on trochanteral and/or dental chaetotaxy. Two new Brazilian species of the genus are described and illustrated, Medeiros, Bellini & Weiner, , with a remarkable reduced ventral dental chaetotaxy not seen in other Neotropical species, and Oliveira, Medeiros & Bellini, with a distinctive large set of head vertex spines (18). Finally, an updated key to all the valid species of the genus is presented.
ISSN:1313-2989
1313-2970
DOI:10.3897/zookeys.1186.111837