Contributions to the Taxonomy of Arlesminthurus Bretfeld and Calvatomina Yosii (Collembola, Symphypleona, Appendiciphora), with the Description of New Species from Northeastern Brazil

Contributions to the Taxonomy of Arlesminthurus Bretfeld and Calvatomina Yosii (Collembola, Symphypleona, Appendiciphora), with the Description of New Species from Northeastern Brazil

Arlesminthurus Bretfeld is a small genus of Neotropical Bourletiellidae, with only four described species so far. Calvatomina Yosii is a widespread taxon of Dicyrtomidae, with most species known from the tropics. Here, we describe two new species from northeastern Brazil: Arlesminthurus caatinguensi...

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Bibliographic Details
Published in:Insects (Basel, Switzerland) Vol. 12; no. 5; p. 433
Main Authors: Cipola, Nikolas G., Medeiros, Gleyce Da S., Oliveira, Viviane A. M. De, Barbosa, Luís G. De M., Lycarião, Thainá A., Bellini, Bruno C.
Format: Journal Article
Language:English
Published: Basel MDPI AG 11-05-2021
MDPI
Subjects:
Abdomen
Antennae
Appendages
Aquatic insects
bothriotrichum-like sens
Bourletiellidae
Bourletiellinae
chaetotaxy
Collembola
Dicyrtomidae
Dicyrtominae
Females
Genera
Head
Homology
Identification keys
Insects
Males
Morphology
New species
Symphypleona
Taxonomy
Teeth
Tropical environments
Brazil
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Description
Summary:Arlesminthurus Bretfeld is a small genus of Neotropical Bourletiellidae, with only four described species so far. Calvatomina Yosii is a widespread taxon of Dicyrtomidae, with most species known from the tropics. Here, we describe two new species from northeastern Brazil: Arlesminthurus caatinguensis sp. nov. and Calvatomina gladiata sp. nov. We also provide a detailed chaetotaxic study for Arlesminthurus for the first time, with updated diagnoses and identification keys for the Neotropical species of both genera and notes on their morphology. Arlesminthurus caatinguensis sp. nov. resembles A. aueti Arlé in body color pattern, male head and dental chaetotaxy. The discovery of one bothriotrichum-like sens on the large abdomen of the new species needs to be investigated as a possible generic diagnostic feature, but we suggest that this structure is homologous to the S-sens seen in at least four Bourletiellinae genera, and they are likely related to each other. Calvatomina gladiata sp. nov. belongs to the rufescens-group and resembles C. rufescens Reuter and C. guyanensis Nayrolles and Betsch in some aspects of the head, dental and abdominal chaetotaxy. These descriptions represent the first record of Arlesminthurus from Caatinga and the first nominal species of Calvatomina from Brazil.
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This published work and the nomenclatural acts it contains have been registered in ZooBank, the online registration system for the ICZN (International Code of Zoological Nomenclature). The LSID (Life Science Identifier) for this publication is: LSIDurn: lsid:zoobank.org:pub:DD1EE7BF-C296-4B48-AD22-C7A7455466BF.
ISSN:2075-4450
2075-4450
DOI:10.3390/insects12050433