Abstract
The Macaronesian species of the muscid genus Limnophora are reviewed with special emphasis on the fauna of the western Canary Islands. The genus is represented by 14 species in the Macaronesian archipelagos, with 10 species in the Canary Islands, 4 species in the Cape Verde Islands, and 3 species in Madeira. Limnophora obsignatula sp. nov. is endemic to the western Canary Islands, where it replaces the widespread continental L. obsignata (Rondani). It is further shown that L. paneliusi Emden, a species so far considered endemic to the Cape Verde Islands, is widespread in the Canary Islands. Two species, L. obsignata (Rondani) and L. tigrina Am Stein, are removed from the list of Canarian Muscidae as based on misidentifications of other species with a mesonotal “Anthomyia-pattern”. Limnophora (Calliophrys) riparia capoverdica Emden, a taxon described from the Cape Verde Islands, is synonymized with L. riparia (Fallén), syn. nov. Distribution data and illustrated diagnoses are given for each species. The species account is finalized with an identification key to males and females. An assessment of the ovipositor as a characters source in phylogeny and species recognition is made for 12 species of Limnophora. Finally, it is pointed out that several species are acutely threatened due to habitat disturbance.
References
Báez, M. (1981) Dipteros de Canarias VIII: Tribus Limnophorini y Coenosiini (Dipt., Muscidae). Anuario de Estudios Canaricos, 27, 619‒670.
Báez, M. & Oromí, P. (2010) Orden Diptera. In: Arechavaleta, M. (Eds.), Lista de especies silvestres de Canarias. Hongos, plantas y animales terrestres 2009. Gobierno de Canarias, pp. 318‒342.
Becker, T. (1908a) Dipteren der Kanarischen Inseln. Mitteilungen aus dem Zoologischen Museum in Berlin, 4, 1‒180, 4 pls.
Becker, T. (1908b) Dipteren der Insel Madeira. Mitteilungen aus dem Zoologischen Museum in Berlin, 4,181‒206.
https://doi.org/10.5962/bhl.title.9273
Chandler, P.J. (1979) Flies, bees and butterflies on La Palma, Canary Islands in 1976. Entomologist´s Record and Journal of Variation, 91, 103‒116 + 117‒121.
Collin, J.E. (1930) A revision of the Greenland species of the anthomyid genus Limnophora Desv. (Diptera). Entomologist’s Monthly Magazine, Series 3, 7, 94‒100 + 162‒175 + 238‒248 + 265‒268.
Couri, M. & Pont, A.C. (2017) Afrotropical Limnophora Robineau-Desvoidy (Diptera, Muscidae) with the description of four new species. Zootaxa, 4216 (6), 501‒536.
https://doi.org/10.11646/zootaxa.4216.6.1
Couri, M. & Pont, A.C. (2020) Type specimens of Limnophorini (Diptera: Muscidae) deposited in the Museum für Naturkunde, Humboldt-Universität zu Berlin (Berlin, Germany). Zoologia, 37, 1‒57.
https://doi.org/10.3897/zoologia.37.e46879
Crosskey, R.W. & Báez, M. (2004) A synopsis of the present knowledge of the Simuliidae (Diptera) of the Canary Islands, including keys to the larval and pupal stages. Journal of Natural History, 38, 2085‒2117.
https://doi.org/10.1080/0022293032000140958
Cumming, J.M. & Wood, D.M. (2017) Adult morphology and terminology. In: Kirk-Spriggs, A.H. & Sinclair, B.J. (Eds.), Manual of Afrotropical Diptera. Vol. 1. Introductory chapters and keys to Diptera families. Suricata 4. South African National Biodiversity Institute, Pretoria, pp. 89–113.
Emden, F.I. van (1958) Muscidae collected on the Cape Verde Islands. Results of the Zoological Expedition of Professor Dr. Håkan Lindberg to the Cape Verde Islands in the winter 1953‒54. No 24. Commentationes biologicae, 20, 1‒18.
Evenhuis, N.L. & Pape, T. (2020) Systema Dipterorum. Version 2.9. Available from: http://diptera.org/ (accessed 15 December 2020)
Frey, R. (1936) Die Dipterenfauna der Kanarischen Inseln und ihre Probleme. Commentationes biologicae, 6, 1‒237, 10 pls.
Hennig, W. (1955‒1964) 63b. Muscidae. In: Lindner, E. (Ed.), Die Fliegen der palaearktischen Region. 7 (2). Lief. 207, 209 & 353. Schweizerbart’sche Verlagsbuchhandlung, Stuttgart, pp. 337‒384 (1959), pp. 385‒432 (1960) & pp. 1057‒1110 (1964).
Hennig, W. (1965) Vorarbeiten zu einem phylogenetischen System der Muscidae (Diptera: Cyclorrhapha). Stuttgarter Beiträge zur Naturkunde, 141, 1‒100.
Hennig, W. (1978) Über Muscidae (Diptera) der Kanarischen Inseln. Stuttgarter Beiträge zur Naturkunde, A (Biology), 311, 1‒12. [Posthumous paper]
Huckett, H.C. (1932) The North American species of the genus Limnophora Robineau-Desvoidy, with descriptions of new species /Muscidae, Diptera). [Part.] Journal of the New York Entomological Society, 40, 279‒339.
Lüderitz, V., Arévalo, J.R., Fernández-Palacios, J.M., Fernández-Lugo, S., Eller, K. & Langheinrich, U. (2016) Freshwater endemic species and the ecological status of streams in the Canary Islands. Journal of Mediterranean Ecology, 14, 45‒54.
Macquart, J. (1839) Diptères. In: Webb, P.B. & Berthelot, S. (Eds.), Histoire Naturelle des Îles Canaries, 2 (2), pp. 97‒119.
Malmqvist, B., Nilsson, A.N. & Báez, M. (1995) Tenerife’s freshwater macroinvertebrates: status and threats (Canary Islands, Spain). Aquatic Conservation: Marine and Freshwater Ecosystems, 5, 1‒24.
https://doi.org/10.1002/aqc.3270050103
Michelsen, V. (2019) Macaronesian Muscidae (Diptera). I. The genus Hebecnema Schnabl with description of a new Canarian endemic species and a review of the European fauna. Zootaxa, 4706 (2), 332‒348.
https://doi.org/10.11646/zootaxa.4706.2.7
Nilsson, A.N., Malmqvist, B., Báez, M., Blackburn, J.H. & Armitage, P.D. (1998) Stream insects and gastropods in the island of Gran Canaria (Spain). Annales de Limnologie, 34(4), 413‒435.
https://doi.org/10.1051/limn/1998033
Pont, A.C. (1980) Family Muscidae. In: Crosskey, R. W. (Ed.), Catalogue of the Diptera of the Afrotropical Region. British Museum (Natural History), London, pp. 721–761.
Pont, A.C. (1986) Family Muscidae. In: Soós, Á & Papp, L. (Eds.), Catalogue of Palaearctic Diptera. Vol. 11. Akadémiai Kiadó, Budapest, pp. 57–215.
Pont, A.C. (2004). Muscidae. In: Pape, T. & Beuk, P. (Eds.), Fauna Europaea: Diptera, Brachycera. Available from: https://fauna-eu.org (accessed 15 December 2020)
Pont, A.C. (2008) Muscidae. In: Borges, A.V. et al. (Eds.), A list of the terrestrial fungi, flora and fauna of Madeira and Selvagens archipelagos. Governo Regional da Madeira, Funchal, pp. 334.
Pont, A.C. (2013) The Fanniidae and Muscidae (Diptera) described by Paul Stein (1852‒1921). Zoosystematics and Evolution, 89, 31‒166.
https://doi.org/10.1002/zoos.201300004
Pont, A.C. & Werner, D. (2006) The types of Fanniidae and Muscidae (Diptera) in the Museum für Naturkunde, Humboldt-Universität zu Berlin, Germany. Mitteilungen aus dem Museum für Naturkunde in Berlin, Zoologische Reihe, 82, 3‒139.
https://doi.org/10.1002/mmnz.200600001
Santos Abréu, E. (1976) Monografía de los Anthomyidos de las Islas Canarias (Dipteros). Excmo. Cabildo Insular de La Palma, La Palma, 175 pp. [Posthumous, unedited pre-1937 contribution.]
Stein, P. (1918) Zur weitern Kenntnis aussereuropaeischer Anthomyiden. Annales historico-naturales Musei nationalis hungarici, 16, 147‒244.
Werner, D. & Pont, A.C. (2006) The feeding and reproductive behaviour of the Limnophorini (Diptera: Muscidae). Studia dipterologica, Supplement 14, 79‒114.
Zhang, C. & Xue, W. (1996) Faunistical studies on the genus Limnophora in China (Diptera: Muscidae). Entomologica sinica, 3 (3), 189‒204.