Studies of Raspy Crickets: Magnumtergalis n. gen. a new gryllacrid genus with elongate male terminalia (Orthoptera: Gryllacrididae) from Colombia

844

The genus Triaenogryllacris is redescribed and a key for identification of the species is provided. When dealing with observations of iNaturalist, accurate data about the distribution of T. triaena (the type species) are obtained, and three color forms are indicated: yellow, pink and green. Two new species are described here: T. diaena n. sp. and T. horaciotrianai n. sp., expanding the expected geographic distribution for the genus, thus recorded, from the Andean forests of Ecuador and Colombia’s three mountain ranges. Finally, the characters and distribution of Triaenogryllacris are discussed, contrasting with the other taxa described for the family Gryllacrididae.

Studies on raspy crickets: New Triaenogryllacris species (Orthoptera: Gryllacrididae)

Cadena-Castañeda

Díaz

Rodríguez

et al. 2020

844

Studies on Raspy Crickets: Astyloplatum n. gen. a new gryllacrid genus from Colombian Andes (Orthoptera: Gryllacrididae)

Cadena-Castañeda

GARAY

et al. 2023

Astyloplatum luteolum n. gen. et n. sp., is described, as a new monospecific genus from the eastern slope of the Colombian Andes, of the middle and highlands of the departments of Boyacá and Santander. This new taxon is distinguished by its yellowish coloration and the lack of articulated stylli on the male subgenital plate; this character converges with several taxa unrelated to the tribe Gryllacridini in which Astyloplatum n. gen. is placed. The convergence of characters in gryllacridines, diversity, complement of the current classification, and the importance of the phallic complex for the delimitation of genera and species are discussed.

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

CADENA-CASTAÑEDA,

QUINTANA-ARIAS

2024

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.