Cuticular Structures in Micropterous Crickets (Orthoptera, Gryllidae, Petaloptilini, Gryllomorphini)

Orthoptera is a very diverse group that has colonized practically all terrestrial ecosystems on the planet. They have adapted to live in the endogenous environment as well as in caves so that some species exhibit troglomorphic characteristics. This group has been extensively studied due to its econo...

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Main Authors: Pablo Barranco, José Luis Molina-Pardo
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/12/8/708
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author Pablo Barranco
José Luis Molina-Pardo
author_facet Pablo Barranco
José Luis Molina-Pardo
author_sort Pablo Barranco
collection DOAJ
description Orthoptera is a very diverse group that has colonized practically all terrestrial ecosystems on the planet. They have adapted to live in the endogenous environment as well as in caves so that some species exhibit troglomorphic characteristics. This group has been extensively studied due to its economic and social importance; however, many basic morphological and biological questions remain to be solved. In this study, a comparative morphological study by scanning electron microscopy of different structures of eight species of micropteran crickets of the tribes Gryllomorphini and Petaloptilini, whose tegmina had lost their flight and song functionality was carried out. Special emphasis was placed on the tegmina and their possible relationship to reproductive functions. In addition, to assess troglomorphism in the genus <i>Petaloptila</i>, the biometric parameters of six other species have been considered. Actualization of the lifestyle of the studied species has also been carried out. The results show structures not previously described in this group (gland openings, setae, pores, or group of campaniform sensilla). Structures not previously described in this group have been detected, and tegmina (glandular openings and devoured tegmina) seem to confer a role in reproduction. Troglomorphisms are only observed in species of the subgenus <i>Zapetaloptila</i>. Statistically, significant differences have been found in characters such as cephalic elongation, ocular reduction, greater length of appendages, and depigmentation.
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spelling doaj.art-7a183a340f56482ba04a7a295e76be692023-11-22T08:07:23ZengMDPI AGInsects2075-44502021-08-0112870810.3390/insects12080708Cuticular Structures in Micropterous Crickets (Orthoptera, Gryllidae, Petaloptilini, Gryllomorphini)Pablo Barranco0José Luis Molina-Pardo1Departamento de Biología y Geología, Cite II-B, CECOUAL, Universidad de Almería, Ctra. Sacramento s/n, 04120 Almería, SpainCECOUAL, Universidad de Almería, Ctra. Sacramento s/n, 04120 Almería, SpainOrthoptera is a very diverse group that has colonized practically all terrestrial ecosystems on the planet. They have adapted to live in the endogenous environment as well as in caves so that some species exhibit troglomorphic characteristics. This group has been extensively studied due to its economic and social importance; however, many basic morphological and biological questions remain to be solved. In this study, a comparative morphological study by scanning electron microscopy of different structures of eight species of micropteran crickets of the tribes Gryllomorphini and Petaloptilini, whose tegmina had lost their flight and song functionality was carried out. Special emphasis was placed on the tegmina and their possible relationship to reproductive functions. In addition, to assess troglomorphism in the genus <i>Petaloptila</i>, the biometric parameters of six other species have been considered. Actualization of the lifestyle of the studied species has also been carried out. The results show structures not previously described in this group (gland openings, setae, pores, or group of campaniform sensilla). Structures not previously described in this group have been detected, and tegmina (glandular openings and devoured tegmina) seem to confer a role in reproduction. Troglomorphisms are only observed in species of the subgenus <i>Zapetaloptila</i>. Statistically, significant differences have been found in characters such as cephalic elongation, ocular reduction, greater length of appendages, and depigmentation.https://www.mdpi.com/2075-4450/12/8/708morphologycuticular structurestroglomorphic adaptations
spellingShingle Pablo Barranco
José Luis Molina-Pardo
Cuticular Structures in Micropterous Crickets (Orthoptera, Gryllidae, Petaloptilini, Gryllomorphini)
Insects
morphology
cuticular structures
troglomorphic adaptations
title Cuticular Structures in Micropterous Crickets (Orthoptera, Gryllidae, Petaloptilini, Gryllomorphini)
title_full Cuticular Structures in Micropterous Crickets (Orthoptera, Gryllidae, Petaloptilini, Gryllomorphini)
title_fullStr Cuticular Structures in Micropterous Crickets (Orthoptera, Gryllidae, Petaloptilini, Gryllomorphini)
title_full_unstemmed Cuticular Structures in Micropterous Crickets (Orthoptera, Gryllidae, Petaloptilini, Gryllomorphini)
title_short Cuticular Structures in Micropterous Crickets (Orthoptera, Gryllidae, Petaloptilini, Gryllomorphini)
title_sort cuticular structures in micropterous crickets orthoptera gryllidae petaloptilini gryllomorphini
topic morphology
cuticular structures
troglomorphic adaptations
url https://www.mdpi.com/2075-4450/12/8/708
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