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Original Articles

Heterogeneity in shore flies – the case of Glenanthe Haliday (Diptera: Ephydridae) in the Old World

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Pages 418-443 | Accepted 27 Jun 2010, Published online: 31 May 2013
 

Abstract

Old World species of the genus Glenanthe are treated comprehensively with an emphasis on the unusually diverse morphological heterogeneity discovered in structures of the male terminalia. As perspective for this treatment, the tribe Lipochaetini, in which Glenanthe is placed, is characterized and discussed, and an annotated key to the four included genera is provided to facilitate their identification. Glenanthe is demonstrated to be a monophyletic lineage within Lipochaetini. Seven Old World species of Glenanthe are now known, including two new Afrotropical species as follows (type locality in parenthesis): G. namibia n. sp. (Namibia. Mukwe: Divuju: Okavango River [18°04’04”S, 21°28’51”E] and G. danielssoni n. sp. (Republic of South Africa. Cape Province: De Hoop Nature Reserve [34°27’S, 28°25’E]. The identity of G. fuscinervis Becker, revised status (raised from synonymy with G. ripicola (Haliday)), is clarified, and found to be conspecific with Hydrina ochracea Oldenberg, which is recognized as a junior synonym. Papp’s synonymy of Glenanthe fasciventris Becker with Hydrellia (Glenanthe) ripicola Haliday is confirmed, and herein we relegate G. iranica Canzoneri & Rampini also as junior synonym of G. ripicola. The remarkable diverse structures of the male terminalia of all included species are described and illustrated and distribution maps are also provided.

Résumé

Hétérogénéité chez les mouches de plage - le cas des Glenanthe Haliday (Diptera: Ephydridae) de l’Ancien Monde. Les espèces de l’Ancien Monde du genre Glenanthe sont traitées de manière exhaustive en mettant en évidence les divers traits morphologiques inhabituels des terminalia mâles. En particulier, la tribu Lipochaetini, qui inclut les Glenanthe, est carctérisée et discutée. Une clé annotée des quatre genres est fournie pour faciliter l’identification. Glenanthe est démontré ici comme un groupe monophylétique inclu dans les Lipochaetini. Sept espèces de l’Ancien Monde sont connues, ce qui comprend les deux nouvelles espèces afrotropicales suivantes (locus typicus entre parenthèses): G. namibia n. sp. (Namibie. Mukwe: Divuju: Okavango River [18°04’04”S, 21°28’51”E]) et G. danielssoni n. sp. (République d’Afrique-du-Sud. Cape Province: De Hoop Nature Reserve [34°27’S, 28°25’E]). L’identité de G. fuscinervis Becker, statut revu (retiré de la synonymie de G. ripicola (Haliday)), est clarifiée. Il est considéré comme conspécifique de Hydrina ochracea Oldenberg, ce dernier reconnu comme synonyme récent. La synonymie de Papp pour Glenanthe fasciventris Becker avec Hydrellia (Glenanthe) ripicola Haliday est confirmée, et de celle-ci, nous retirons G. iranica Canzoneri & Rampini comme synonyme récent de G. ripicola. Les diverses structures remarquables des terminalia mâles sont décrites et illustrées pour toutes les espèces. Des cartes de distribution sont aussi fournies.

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