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Comparative analysis of forewings and phylogeny of Tafaliscinae sensu Desutter (Orthoptera, Grylloidea, Gryllidae) using morphological and molecular data

Grant number: 18/23224-5
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): June 02, 2019
Effective date (End): May 22, 2020
Field of knowledge:Biological Sciences - Zoology - Taxonomy of Recent Groups
Principal researcher:Silvio Shigueo Nihei
Grantee:Lucas Denadai de Campos
Supervisor abroad: Laure Desutter-Grandcolas
Home Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Research place: Muséum National d'Histoire Naturelle, France  
Associated to the scholarship:17/11568-9 - Cladistic analysis and evolution of forewings of crickets of subfamily Tafaliscinae sensu Desutter, 1987 (Orthoptera, Ensifera, Gryllidae), BP.DR


There are several studies using crickets as models of evolutionary study, mainly concerning speciation, acoustic communication, modification of forewings characters and relationship with habitats. Although crickets are good models of evolutionary studies, Grylloidea classification have had several controversies over the years. Therefore, higher-level phylogenies for Orthoptera, Ensifera and Grylloidea recently started to clarify these relationships. The Neotropical subfamily Tafaliscinae sensu Desutter, traditionally considered not valid, was recently recovered as monophyletic based on a molecular phylogenetic analysis. However, no taxonomic change has been proposed to validate this clade. Nowadays, the genera of Tafaliscinae are distributed along different tribes of Podoscirtinae (Aphonoidini and Paroecanthini). Although presenting morphological differences, mainly in the wings, these exclusively Neotropical crickets share a series of original features concerning leg size and ornamentation, and ovipositor shape, which suggest originality in their ways of life, including egg deposit. The morphological variability of the forewings in this group is remarkable and implies the occurrence of several modes of communication, from the common acoustic communication of crickets, to drumming and various ways of producing vibratory signals. Clearly these morphological traits and the behaviors that they produce can tell us a piece of the evolutionary history of these crickets. The aims of this project are to examine and compare morphological characters with emphasis in the forewings and male's phallic complexes of the specimens of Tafaliscinae deposited at the Muséum national d'Histoire naturelle (MNHN) in Paris, France and Zoological Institute of Russian Academy of Sciences (ZIN), Saint Petersburg, Russia; to obtain molecular data of Tafaliscinae and outgroups (Podoscirtinae, Oecanthinae, Euscyrtinae, Hapithinae, Gryllinae) of preserved material available in the entomological collection of MNHN, using MNHN molecular facilities; to include all obtained data in a data matrix with those characters previously constructed in Brazil to perform a phylogenetic analysis with total evidence (morphological and molecular data) and apply this analysis to study the evolution of these crickets forewings, communication modalities and life habits.

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE CAMPOS, LUCAS DENADAI; SOUZA-DIAS, PEDRO G. B. Hidden in the bushes: uncovering the diversity of the genus Neometrypus Desutter, 1988 n. status (Orthoptera: Gryllidae: Paroecanthini: Tafaliscina) in Neotropical forests. Zootaxa, v. 5060, n. 4, p. 451-488, NOV 2 2021. Web of Science Citations: 0.
DE CAMPOS, LUCAS DENADAI; SOUZA-DIAS, PEDRO GUILHERME BARRIOS DE; DESUTTER-GRANDCOLAS, LAURE; SHIGUEO NIHEI, SILVIO. Colonization of different biomes drove the diversification of the Neotropical Eidmanacris crickets (Insecta: Orthoptera: Grylloidea: Phalangopsidae). PLoS One, v. 16, n. 1 JAN 15 2021. Web of Science Citations: 0.
DE CAMPOS, LUCAS DENADAI; DESUTTER-GRANDCOLAS, LAURE. The Paroecanthini crickets (Orthoptera: Grylloidea: Gryllidae: Oecanthinae) from French Guiana. ZOOSYSTEMA, v. 42, n. 20, p. 355-398, JUL 24 2020. Web of Science Citations: 0.
DE CAMPOS, LUCAS DENADAI; SOUZA-DIAS, PEDRO G. B.; NIHEI, SILVIO SHIGUEO. New Brazilian Tafaliscina increase the diversity of this Neotropical cricket clade (Orthoptera: Grylloidea: Gryllidae: Oecanthinae: Paroecanthini). ZOOSYSTEMA, v. 42, n. 19, p. 331-353, JUL 7 2020. Web of Science Citations: 2.

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