Six new species of Amblypsilopus Bigot (Diptera: Dolichopodidae: Sciapodinae) and a key to species of the Afrotropical mainland

Keywords: Sciapodinae, Amblypsilopus, Gabon, Ivory Coast, South Africa, Tanzania, Afrotropical mainland, key

Abstract

Six new species of Amblypsilopus Bigot, 1888 from the Afrotropical region are described and illustrated: A. gabonensis sp. nov. from Gabon, A. martini sp. nov., A. mufindiensis sp. nov. and A. udzungwensis sp. nov. from Tanzania, A. milleri sp. nov. from South Africa, and A. spiniscapus sp. nov. from Ivory Coast. Amblypsilopus gabonensis sp. nov. and A. spiniscapus sp. nov. are remarkable in having a setose antennal scape. Amblypsilopus martini sp. nov. and A. mufindiensis sp. nov. are peculiar in bearing very long setae on the antennal pedicel, mesonotum and scutellum. Amblypsilopus milleri sp. nov. is considered a member of the South African A. fasciatus species group despite its unmodified wing venation. The new species differ also from other similar representatives of the genus in the morphology of the male cercus and the male secondary sexual characters on the legs. The male of A. bevisi (Curran, 1927) is described for the first time. The following species described from females are considered doubtful (nomina dubia): A. flavicollis (Becker, 1923), A. rectangularis (Parent, 1937), A. sudanensis (Parent, 1939) and A. tropicalis (Parent, 1933). Amblypsilopus subfascipennis (Curran, 1926) has a strongly sinuate wing vein dm-m and is transferred to Chrysosoma Guérin-Méneville, 1831 (comb. nov.). Chrysosoma ungulatum Parent, 1941 from Príncipe with an almost straight vein dm-m is transferred to Amblypsilopus (comb. nov.). Chrysosoma centrale Becker, 1923 from Tanzania also has a straight wing vein dm-m and modified fore tarsus, being very close in habitus to A. steelei Grichanov, 1996, and is also transferred to Amblypsilopus (comb. nov.). Chrysosoma asperum Parent, 1933 from South Africa has the same characters, is almost identical to South African A. bevisi and is also transferred here to Amblypsilopus (comb. nov.) and newly synonymized with A. bevisi (syn. nov.). Presently, 66 reliable species of Amblypsilopus are known from the Afrotropical region, including 37 from the Afrotropical mainland. A revised identification key to males of species of the Afrotropical mainland is provided. New records are given for some known species. The species diversity of the Afrotropical fauna and variability of morphological characters in the genus Amblypsilopus are briefly discussed.

References

Becker T. 1923. Dipterologische Studien. Dolichopodidae. D. Aethiopische Region. Entomologische Mitteilungen 12: 1–50.

Bickel D.J. 1987. Babindellinae, a new subfamily of Dolichopodidae (Diptera) from Australia, with a discussion of symmetry in the dipteran male postabdomen. Entomologica Scandinavica 18: 97–103. https://doi.org/10.1163/187631287X00061

Bickel D.J. 1994. The Australian Sciapodinae (Diptera: Dolichopodidae), with a review of the Oriental and Australasian faunas, and a world conspectus of the subfamily. Records of the Australian Museum Supplement 21: 1–394. https://doi.org/10.3853/j.0812-7387.21.1994.50

Bickel D.J. 2009. Amblypsilopus (Diptera: Dolichopodidae: Sciapodinae) from the Southwest Pacific, with a focus on the radiation in Fiji and Vanuatu. In: Evenhuis N.L. & Bickel D.J. (eds) Fiji Arthropods XIII. Bishop Museum Occasional Papers 103: 3–61.

Bickel D.J. 2019. The Amblypsilopus amnoni and megastoma groups in New Guinea (Diptera: Dolichopodidae: Sciapodinae). Israel Journal of Entomology 49 (2): 195–214. https://doi.org/10.5281/zenodo.3522860

Cumming J.M. & Wood D.M. 2017. 3. Adult morphology and terminology. In: Kirk-Spriggs A.H. & Sinclair B.J. (eds) Manual of Afrotropical Diptera. Volume 1. Introductory Chapters and Keys to Diptera Families: 89–134. Suricata 4, SANBI Graphics & Editing, Pretoria.

Curran C.H. 1924. The Dolichopodidae of South Africa. Annals of the Transvaal Museum 10 (4): 212–232.

Curran C.H. 1926. The Dolichopodidae of the South African Museum. Annals of the South African Museum 23: 377–416.

Curran C.H. 1927. New Dolichopodidae from the Ethiopian Region. Annals and Magazine of Natural History Series 9 19: 1–16. https://doi.org/10.1080/00222932708633569

Grichanov I.Ya. 1996. Four new species of the genus Amblypsilopus Bigot (Diptera: Dolichopodidae) from Tropical Africa and Papua New Guinea. International Journal of Dipterological Research 7 (4): 285–294.

Grichanov I.Ya. 1998. New data on Sciapodinae (Diptera: Dolichopodidae) with a revised catalogue and keys to afrotropical species. Bulletin de l’Institut royal des Sciences naturelles de Belgique, Entomologie 68: 79–130.

Grichanov I.Ya. 1999. New species and new records of Afrotropical Sciapodinae (Diptera: Dolichopodidae). Bulletin de l’Institut royal des Sciences naturelles de Belgique, Entomologie 69: 113–135.

Grichanov I.Ya. 2011. An illustrated synopsis and keys to afrotropical genera of the epifamily Dolichopodoidae (Diptera: Empidoidea). Priamus Supplement Ankara 24: 1–98.

Grichanov I.Ya. 2017. Alphabetic List of Generic and Specific Names of Predatory Flies of the Epifamily Dolichopodoidae (Diptera). 2nd Ed. All-Russian Institute of Plant Protection, St Petersburg. https://doi.org/10.5281/zenodo.884863

Grichanov I.Ya. 2018. An Annotated Catalogue of Afrotropical Dolichopodoidae (Diptera). All-Russian Institute of Plant Protection, St Petersburg. https://doi.org/10.5281/zenodo.1187006

Grichanov I.Ya. 2019. Discovery of Udzungwomyia Grichanov in South Africa and definition of a new tribe Udzungwomyiini (Diptera: Dolichopodidae). Israel Journal of Entomology 49 (2): 267–275. https://doi.org/10.5281/zenodo.3562003

Grichanov I.Ya. 2020a. New records of Dolichopodidae (Diptera) from Russian Primorye and notes on some Chinese species. Russian Entomological Journal 29 (4): 432–438. https://doi.org/10.15298/rusentj.29.4.12

Grichanov I.Ya. 2020b. Afrotropical Dolichopodoidae (Diptera) catalogue: changes and corrections. Amurian Zoological Journal 12 (4): 406–411. https://doi.org/10.33910/2686-9519-2020-12-4-406-411

Grichanov I.Ya. 2021a. Eleven new species of Amblypsilopus Bigot (Diptera: Dolichopodidae: Sciapodinae) and a key to the species of Madagascar and adjacent islands. European Journal of Taxonomy 755 (1): 47–87. https://doi.org/10.5852/ejt.2021.755.1399

Grichanov I.Ya. 2021b. New species and new records of the Afrotropical Sciapodinae (Diptera: Dolichopodidae). Proceedings of the Russian Entomological Society 92: 42–65. https://doi.org/10.1016/10.47640/1605-7678_2021_92_42

Grichanov I.Ya. & Brooks S.E. 2017. 56. Dolichopodidae (long-legged dance flies). In: Kirk-Spriggs A.H. & Sinclair B.J. (eds) Manual of Afrotropical Diptera, Volume 2. Nematocerous Diptera and Lower Brachycera: 1265–1320. Suricata 5. SANBI Graphics & Editing, Pretoria.

Grichanov I.Ya., Kirk-Spriggs A.H. & Grootaert P. 2011. New records of Dolichopodidae (Diptera: Empidoidea) from the Democratic Republic of Congo. CESA News 64: 12–22.

Irwin M.E. 1974. An account of southern African genus Sciopolina with descriptions of new species (Diptera: Dolichopodidae: Sciapodinae). Annals of the Natal Museum 22: 221–264.

Parent O. 1929. Étude sur les Dolichopodides exotiques de la Collection von Röder. Annales de la Société scientifique de Bruxelles (B) 49: 169–246.

Parent O. 1931. Quelques Dolichopodides nouveaux conservés au British Museum. Annales de la Société scientifique de Bruxelles (B) 51: 39–47.

Parent, O. 1933. Etude sur les diptères dolichopodides exotiques du Musee du Congo (Tervuren). Revue de Zoologie et de Botanique africaines 24: 1–49.

Parent O. 1934. Additions à la faune éthiopienne (Diptères: Dolichopodidés). Bulletin de la Société royale entomologique d’Égypte 18: 112–138.

Parent O. 1935. Diptères Dolichopodides Nouveaux. Encyclopédie entomologique (B II) Diptera 8: 59–96.

Parent O. 1936. Diptères Dolichopodidés du Congo belge conservés au Muséum royal d’histoire naturelle de Belgique. Bulletin du Musée royal d’Histoire naturelle de Belgique 12 (15): 2–19.

Parent O. 1937. Diptères Dolichopodides espèces et localités nouvelles. Bulletin et Annales de la Société royale entomologique de Belgique 77: 125–148.

Parent O. 1941. Diptères Dolichopodides de la région Indo-australienne. Espèces et localités nouvelles. Annals and Magazine of Natural History Series 11 7 (38): 195–235. https://doi.org/10.1080/00222934108527151

Tonguç A. & Grootaert P. 2013. A new Palaearctic Amblypsilopus species (Insecta, Diptera, Dolichopodidae) from Turkey. Journal of the Entomological Research Society 15 (1): 91–95.

Vanschuytbroeck P. 1960. Diptera (Brachycera, Orthorrhapha): Dolichopodidae. In: Hanström B., Brinck P. & Rudebeck G. (eds) South African Animal Life. Results of the Lund University Expedition in 1950–1951 Vol. 7: 316–324. Almqvist & Wiksell, Göteborg, Stockholm, Uppsala.

Yang D. & Zhu Y. 2011. Sinosciapus from Taiwan with description of a new species (Diptera: Dolichopodidae). ZooKeys 159: 11–18. https://doi.org/10.3897/zookeys.159.2252

Yang D., Zhang L., Wang M. & Zhu Y. 2011. Fauna Sinica, Insecta, Volume 53, Dolichopodidae. Science Press, Beijing. [In Chinese with English summary.]

Yang D., Zhang L.L. & Zhang K.Y. 2018. Species Catalogue of China, Volume 2, Animals, Insecta (VI), Diptera (2), Orthorrhaphous Brachycera. Science Press, Beijing.

Published
2022-01-25
How to Cite
Grichanov, I. Y. (2022). Six new species of Amblypsilopus Bigot (Diptera: Dolichopodidae: Sciapodinae) and a key to species of the Afrotropical mainland. European Journal of Taxonomy, 789(1), 49–80. https://doi.org/10.5852/ejt.2022.789.1631
Section
Research article