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2. Studies on Neotropical crickets: A new Gryllotalpella species (Orthoptera: Gryllotalpidae) from Brazilian Amazon

Author

OSCAR J. CADENA-CASTAÑEDA, DIANA MARCELA TRUJILLO RODRÍGUEZ, RONALD FERNANDO QUINTANA-ARIAS, and JEISON EDUARDO GARCÍA ARIZA

Subjects
Gryllidae, Insecta, Arthropoda, Animals, Animalia, Orthoptera, Animal Science and Zoology, Biodiversity, Animal Distribution, Brazil, Gryllotalpidae, Ecology, Evolution, Behavior and Systematics, Taxonomy
Abstract

The genus Gryllotalpella is redescribed, and Gryllotalpella mendesi n. sp. is described from the Brazilian Amazon. The key to the species is also updated, and the status of the specimen identified as Gryllotalpella minor by Rehn in 1917 is clarified. Finally, a map with the distribution of the currently known species is provided, and the status of the species described in past centuries is discussed.

Published
2022

3. Studies on Neotropical Pseudophyllinae: The status of the genus Brachyauchenus Brunner von Wattenwyl, 1895 and its species (Orthoptera: Tettigoniidae: Pseudophyllinae: Platyphyllini)

Author

Ronald Fernando Quintana Arias, Oscar J. Cadena-Castañeda, Diana Marcela Trujillo Rodríguez, Gustavo Costa Tavares, and Nixon Oscar Parra Rodríguez

Subjects
Insecta, Subfamily, Arthropoda, Tettigoniidae, color variation, Zoology, Biology, Tribe (biology), Genus, Animalia, Scopus, Animals, Pleminiini, Ecology, Evolution, Behavior and Systematics, Taxonomy, new genus, Biodiversity, biology.organism_classification, katydids, Platyphyllini, Type species, Orthoptera, Key (lock), Female, Animal Science and Zoology, Type locality, Pseudophyllinae, Animal Distribution
Abstract

In this contribution to the subfamily Pseudophyllinae in the Neotropics, we focus on reviewing the status of the genus Brachyauchenus and its four included species. After this revision, the genus remains monotypic, including only B. castaneus (type species), so it is necessary to provide a new diagnosis, since the current has characteristics of species that in the past was moved to Triencentrus, in addition to the characteristics of the species that are being excluded here. B. castaneus is redescribed to complement the characteristics of the genus, the unknown female is described, and new distribution data are provided, refuting the presence of this species in Bogotá, Colombia, its type locality. Brachyauchenus festae and B. minutus are grouped into the new genus Mikrischyrum n. gen. (Platyphyllini) which is similar to Baliophyllum and Drepanoxiphus, and a key is provided to differentiate these species. Brachyauchenus varicosus is being moved to the genus Stenoschema (Pleminiini), restricting the distribution of Brachyauchenus to the center and north of the eastern slope of the Colombian Andes and the new genus in Panama and the Peruvian Amazon. A map is included with the distribution data of the species studied here. Finally, the variation of the coloration of some species and the current taxonomic panorama of the tribe Platyphyllini are discussed.

Published
2021

9. Studies of Raspy Crickets: The Status of the Wingless American gryllacridines (Orthoptera: Gryllacrididae).

Author

Cadena-Castaeda OJ and Quintana-Arias RF

Subjects
Animals, Animal Distribution, Biological Evolution, Orthoptera, Gryllidae
Abstract

In this contribution based on the American wingless gryllacridines, the two genera described for the New World Camptonotus and Neoeremus are defined and differentiated, resulting in three additional genera: Neortus stat. resurr., Fiancogryllacris n. gen. and Camposgryllacris n. gen. The species of these genera were described at the end of the 19th century and the beginning of the 20th century, and in most taxa, there are no records since their description, so the iNaturalist platform provided additional distributional data for some species. Taxonomic keys are provided for the identification of the genera and species studied. Finally, the evolutionary interpretation of the appearance and disappearance of wings in leaf-rolling crickets are discussed.

Published
2024
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10. Studies on Neotropical crickets: A new Perugryllae cricket (Orthoptera: Gryllidae: Gryllinae: Gryllini: Brachytrupina) from the foothills of the Colombian Andes.

Author

Cadena-Castaeda OJ, Quintana-Arias RF, and Tavares GC

Subjects
Animals, Colombia, Rainforest, Animal Distribution, Animal Structures, Body Size, Gryllidae, Orthoptera
Abstract

A new tiny field cricket species of the genus Laureopsis (Orthoptera: Gryllidae), from the foothills of the Colombian Andes is described. With the description of Laureopsis andinus n. sp., the distribution of the Perugryllae Group expands outside the Amazon rainforest of Colombia and Peru, and is recorded for the first time in areas of Andean influence. A distribution map and a key for the identification of the species of the group are also provided. Finally, the morphology and distribution of the species of the two genera known for the Perugryllae group are discussed.

Published
2023
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