Especie nueva de Scybalocanthon (Coleoptera: Scarabaeinae: Canthonini) y descripción de la variación del órgano genital masculino

Rendón, Fredy Molano; Uribe, Claudia A. Medina

doi:10.22201/ib.20078706e.2010.003.640

Rev.Mex.Biodiv.

2010

DOI: 10.22201/ib.20078706e.2010.003.640

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Especie nueva de Scybalocanthon (Coleoptera: Scarabaeinae: Canthonini) y descripción de la variación del órgano genital masculino

Fredy Molano Rendón¹,

Claudia A. Medina Uribe²

Abstract: Se describe Scybalocanthon arcabuquensis Molano y Medina, sp.nov. La distribución de esta especie se encuentra restringida a los bosques de roble del municipio de Arcabuco, Departamento de Boyacá, sobre la cordillera Oriental de los Andes en Colombia. El órgano genital del macho se describe e ilustra, se discute la variación de las estructuras del saco interno de varias especies del género, y se proponen algunas estructuras del órgano genital como posibles caracteres únicos que definen el género.

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Cited by 10 publications

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Variations in genetic structure and male genitalia suggest recent lineage diversification in the Neotropical dung beetle complexCanthon cyanellus(Scarabaeidae: Scarabaeinae)

Nolasco-Soto

Favila

González‐Astorga

et al. 2020

Biological Journal of the Linnean Society

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We analysed the genetic divergence and morphology of the aedeagus (i.e. phallobase and parameres) in Canthon cyanellus at different geographical levels. The results from both approaches were compared with the current taxonomic assignment of the C. cyanellus complex, which includes three subspecies. We found a high variation in all the morphological characters of the aedeagus in the populations analysed; the morphometric variation was not geographically structured, either by population or by region. The genealogical analysis indicates a significant genetic structure that does not match either the morphological variation in the male genitalia or the previous subspecific taxonomic classification. Our results suggest that the morphological variation of the aedeagus is seemingly not an isolating reproductive barrier and that the intra- and interpopulation morphological variability of the aedeagus in the C. cyanellus complex does not permit the division into several species. We suggest that other evolutionary forces, such as genetic drift and sexual selection, have influenced the evolution of the male genitalia and the incipient differentiation of this species complex.

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Variations in genetic structure and male genitalia suggest recent lineage diversification in the Neotropical dung beetle complexCanthon cyanellus(Scarabaeidae: Scarabaeinae)

Nolasco-Soto

Favila

González‐Astorga

et al. 2020

Biological Journal of the Linnean Society

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Morphology and terminology of dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae) male genitalia

Uribe

Molano-Rendón

Scholtz

2013

Zootaxa

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The external and internal male genitalia of 327 species of 11 tribes of the subfamily Scarabaeinae, including species of Deltochilini, Scarabaeini, Gymnopleurini, Ateuchini, and Coprini, among others, were examined. Descriptions of the variations in the genital segment, the aedeagus, the internal sac, and its sclerites and raspules are presented. An exhaustive comparison of structures, names, and terminology used in literature for Scarabaeinae male genitalia are discussed. The internal sac of the aedeagus is divided in areas for an easer comparison of its internal structures; basal, submedial, medial, and apical areas are described in detail and compared. The variation of apical and medial sclerites, as well as the raspules of the submedial area, are described and compared in detail among all the taxa studied.Key words: Scarabaeinae, male genitalia, aedeagus, internal sac, sclerites ResumenSe examinó la genitalia externa e interna de machos de 327 especies de 11 tribus de la subfamilia Scarabaeinae incluyendo especies de Deltochilini, Scarabaeini, Gymnopleurini, Ateuchini, y Coprini, entre otras. Descripciones de la variación del segmento genital, el edeago, el saco interno, sus escleritos y raspulas, son presentadas. Una comparación exhaustiva de las estructuras del órgano genital masculino de los Scarabaeinae, sus nombres y terminologia usada en la literatura es expuesta. El saco interno es dividido en áreas para facilitar la comparación de sus estructuras; se describen y comparan detalladamente el área basal, submedial, medial y apical. La variación de los escleritos apicales y mediales, así como las raspulas del area submedial son descritas y comparadas en detalle entre todos los taxones estudiados.

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A new species of the genus Scybalocanthon (Coleoptera, Scarabaeidae, Scarabaeinae) from the Atlantic rainforest, with an identification key to the species from South America south of the Amazon basin

Vaz‐de‐Mello

Silva

2017

Zootaxa

933

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Scybalocanthon batesi sp. nov., from Bahia, Brazil is described based on external morphology. Its diagnostic characters are provided and illustrated. An identification key and new distributional data to the following non-Amazonian species from South America are provided, S. nigriceps (Harold, 1868), S. zischkai Martínez, 1949, S. korasakiae Silva, 2011 and S. batesi sp. nov.. A lectotype is designated for S. nigriceps.

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Especie nueva de Scybalocanthon (Coleoptera: Scarabaeinae: Canthonini) y descripción de la variación del órgano genital masculino

Cited by 10 publications

References 2 publications

Variations in genetic structure and male genitalia suggest recent lineage diversification in the Neotropical dung beetle complexCanthon cyanellus(Scarabaeidae: Scarabaeinae)

Variations in genetic structure and male genitalia suggest recent lineage diversification in the Neotropical dung beetle complexCanthon cyanellus(Scarabaeidae: Scarabaeinae)

Morphology and terminology of dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae) male genitalia

A new species of the genus Scybalocanthon (Coleoptera, Scarabaeidae, Scarabaeinae) from the Atlantic rainforest, with an identification key to the species from South America south of the Amazon basin

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