Abstract
The Neotropical stiletto fly genera Microthereva Malloch and Peralia Malloch are revised. These two genera from Argentina and Chile belong to the Anabarhynchus genus group of lower Therevinae. Dialineura costalis Bigot, Anabarhynchus grisea Kröber, Anabarhynchus maculifrons Kröber, Anabarhynchus niger Bigot, and Thereva schineri Jaennicke are synonomized under Peralia vittata Philippi. Each species is redescribed with illustrations of their genitalia, a key to their identification, and a map of their distribution.References
Bigot, J.M.F. (1890) Diptères nouveaux ou peu connus. 35e partie, XLIV: Therevidi. Annales Societe Entomologique de France (1889) Serie 6, 9, 321–328.
Holston, K.C. (2004) A systematic database of Thereva Latreille names: an answer to the nomenclatural challenge in Therevidae (Insecta: Diptera). Memoirs of the American Entomological Society, 45, 1–86.
Irwin, M.E. (1976) Morphology of the terminalia and known ovipositing behaviour of female Therevidae (Diptera: Asiloidea) with an account of correlated adaptations and comments on cladistic relationships. Natal Museum Annals, 22, 913–935.
Irwin, M.E. & Lyneborg, L. (1981a) The genera of Nearctic Therevidae. Illinois Natural History Survey Bulletin, 32[1980], 193–277.
Irwin, M.E. & Lyneborg, L. (1981b) Therevidae. Chapter 37. In: McAlpine, J.F., Peterson, B.V., Shewell, G.E., Teskey, H.J., Vockeroth, J.R. & Wood, D.M. (coord.), Manual of Nearctic Diptera, Volume 1. Research Branch, Agriculture Canada, Ottawa, Monograph 27, pp 513–523.
Jaennicke, F. (1867) Neue exotische Dipteren aus den Museen zu Frankfurt a. M. und Darmstadt. Abhandlungen herausgeben von der Senckenberischen Naturforschenden Gesellschaft, 6, 43–44.
Kampmeier, G.E., Irwin, M.E. & Algmin, K. (2004) Mandala 5.3: a database system for systematics & biodiversity studies. Diptera Data Dissemination Disk II. (CD-ROM). North American Dipterists Society.
Kröber, 0. (1911) Die Thereviden Süd- und Mittelamerikas. Annales Musei Nationalis Hungarici, 9, 475–529.
Kröber, O. (1913) Diptera. Family Therevidae, Fasc. 148. In: Wytsman, P. (ed.), Genera Insectorum, Brussels. 69 pp.
Kröber, O. (1928) Neue Dipteren des Deutschen Entomolog. Museums in Dahlem (Conopidae, Omphralidae, Therevidae, Tabanidae). Entomologische Mitteilungen, 17 (1), 31–41.
Lyneborg, L. (2001) The Australian Stiletto-flies of the Anabarhynchus Genus-group (Diptera: Therevidae). Entomonograph Volume 13, Apollo Books, Stenstrup, Denmark. 256 pp.
Malloch, J.R. (1932) Rhagionidae, Therevidae. In: Diptera of Patagonia and south Chile based mainly on material in the British Museum (Natural History). Part V. Fascicle 3. - Rhagionidae (Leptidae), Therevidae, Scenopenidae, Mydaidae, Asilidae, Lonchopteridae. British Museum (Natural History), London, pp. 199–257.
McAlpine, J.F. (1981) Morphology and terminology - Adults. In: McAlpine, J.F., Peterson, B.V., Shewell, G.E., Teskey, H.J., Vockeroth, J.R. & Wood, D.M. (coord.), Manual of Nearctic Diptera, Volume 1. Research Branch, Agriculture Canada, Ottawa, Monograph 27, pp. 9–63.
Metz, M.A. (2002) Systematics within the Therevinae (Insecta: Diptera: Therevidae). Unpublished Ph. D. Thesis, Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana, Illinois. 280 pp.
Ortiz, C.S. (1946) Catalogo de los Dipteros de Chile. Ministerio de Agricultura, Santiago, Chile. 250 pp.
Philippi, R.A. (1865) Aufzählung der chilenischen Dipteren. Verhandlungen der kaiserlich-königlichen zoologisch-botanischen Gesellschaft in Wien, 15, 595–782.
Webb, D.W. & Irwin, M.E. (1999) A revision of Tabuda Walker and Tabudamima Irwin and Lyneborg with the description of a new genus Incoxoverpa Webb and Irwin (Diptera: Therevidae: Therevinae). Annals of the Entomological Society of America, 92, 644–674.
Winterton, S.L., Irwin, M.E. & Yeates, D.K. (1999a) Systematics of Nanexila gen. nov. (Diptera: Therevidae) from Australia. Invertebrate Taxonomy, 13, 237–308.
Winterton, S.L., Irwin, M.E. & Yeates, D.K. (1999b) Phylogenetic revision of the Taenogera Kröber genus-group (Diptera: Therevidae), with descriptions of two new genera. Australian Journal of Entomology, 38, 274–290.
Winterton, S.L., Merritt, D.J., O’Toole, A.,Yeates, D.K. & Irwin, M.E. (1999c) Morphology and histology of the spermathecal sac, a novel structure in the female reproductive system of Therevidae (Diptera: Asiloidea). International Journal of Insect Morphology and Embryology, 28, 273–279.