Abstract
Ubristes rex sp. n., a hoverfly of the subfamily Microdontinae (Diptera: Syrphidae) is described from northern Brazil (Roraima). A diagnosis and a key are provided for distinguishing this species from the other three known species of Ubristes, which are all Neotropical. Information on distribution and habitat of all known Ubristes species is summarized. A brief comment is made on the decision to describe this species based on a single female specimen.
References
Cheng, X.-Y. & Thompson, F.C. (2008) A generic conspectus of the Microdontinae (Diptera: Syrphidae) with the description of two new genera from Africa and China. Zootaxa, 1879, 21–48.
Fluke, C.L. (1957) Catalogue of the family Syrphidae in the Neotropical region. Revista Brasileira de Entomologia, 6, 193–268.
Hippa, H. & Ståhls, G. (2005) Morphological characters of adult Syrphidae: descriptions and phylogenetic utility. Acta Zoologica Fennica, 215, 1–72.
Hull, F.M. (1949) The morphology and inter-relationships of the genera of syrphid flies, recent and fossil. Transactions of the Zoological Society of London, 26 (4), 257–408.
https://doi.org/10.1111/j.1096-3642.1949.tb00224.xMcAlpine, J.F. (1981) 2. Morphology and terminology—adults. In: McAlpine, J.F., Peterson, B.V., Shewell, G.E., Teskey, H.J., Vockeroth, J.R. & Wood, D.M. (Eds), Manual of Nearctic Diptera. Vol. 1. Agriculture Canada Monograph, No. 27. Research Branch, Agriculture Canada, Ottawa, pp. 9–63.
Reemer, M. (2013a) Taxonomic exploration of Neotropical Microdontinae (Diptera: Syrphidae) mimicking stingless bees. Zootaxa, 3697 (1), 1–88.
https://doi.org/10.11646/zootaxa.3697.1.1Reemer, M. (2013b) Review and phylogenetic evaluation of associations between Microdontinae (Diptera: Syrphidae) and ants (Hymenoptera: Formicidae). Psyche.
https://doi.org/10.1155/2013/538316Reemer, M. & Ståhls, G. (2013a) Generic revision and species classification of the Microdontinae (Diptera, Syrphidae). ZooKeys, 288, 1–213.
https://doi.org/10.3897/zookeys.288.4095Reemer, M. & Ståhls, G. (2013b) Phylogenetic relationships of Microdontinae (Diptera: Syrphidae) based on molecular and morphological characters. Systematic Entomology, 38, 661–688.
https://doi.org/10.1111/syen.12020Shannon, R.C. (1927) A review of the South American two-winged flies of the family Syrphidae. Proceedings of the United States National Museum, 70, 1–34.
https://doi.org/10.5479/si.00963801.70-2658.1Sinclair, B.J. (2000) 1.2 Morphology and terminology of Diptera male terminalia. In: Papp, L. & Darvas, B. (Eds), Contributions to a Manual of palaearctic Diptera, general and applied Dipterology. Science Herald, Budapest, pp. 53–74.
Speight, M.C.D. (1987) External morphology of adult Syrphidae (Diptera). Tijdschrift voor Entomologie, 130, 141–175.
Thompson, F.C. (1999) A key to the genera of flower flies (Diptera: Syrphidae) of the Neotropical region including descriptions of new genera and species and a glossary of taxonomic terms. Contributions on Entomology, International, 3, 321–378.
Thompson, F.C., Vockeroth, J.R. & Sedman, Y.S. (1976) 46. Family Syrphidae. In: Papavero, N. (Ed.), A catalogue of the Diptera of the Americas south of the United States. Departemento de Zoologia, Secretaria da Agricultura, São Paulo, pp. 1–195.
Van Doesburg Sr., P.H. (1966) Syrphidae from Suriname. Additional records and descriptions. Studies on the fauna of Suriname and other Guyanas, 9, 61–107.
Walker, F. (1852) Diptera. Insecta Saundersiana, 1(3), 157–252.