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Issue: Vol. 5613 No. 2: 27 Mar. 2025
Type: Article
Published: 2025-03-27
DOI: 10.11646/zootaxa.5613.2.5
Page range: 294-306
Abstract views: 131
PDF downloaded: 6

Three new species of the genus Rachicerus Walker (Diptera, Xylophagidae) from Brazil

Universidade de Brasília (UNB); Instituto de Ciências Biológicas; Departamento de Zoologia; Brasília; DF; Brazil.
Universidade Federal do Amazonas (UFAM); Instituto de Ciências Biológicas; Departamento de Biologia; Manaus; AM; Brazil.
Diptera Brachycera Neotropical Region Taxonomy Xylophagomorpha

Abstract

Xylophagidae is a small group of lower brachyceran flies, comprised by nine extant genera and 135 species. The family occur in all biogeographical regions, except the Afrotropics. The genus Rachicerus is the most speciose containing 70 valid species, which accounts for just over half of the known species of Xylophagidae. Species of Rachicerus are considered rare, both in the wild and in scientific collections, which makes it difficult to investigate individual variations, sexual dimorphism, and other aspects of the morphology of the species in the genus. Only six species of the genus are recorded in Brazil: Rachicerus carrerai Pujol-Luz, 2019; R. lanei Carrera, 1940, R. lopesi Carrera, 1940, R. marcusi Carrera, 1940, R. oliverioi Carrera, 1940 and R. shannoni Carrera, 1945. Here we describe three new species based on four specimens from the Brazilian states: R. isabelae Pujol-Luz sp. nov. (Santa Catarina, 1 female), R. rafaeli Pujol-Luz & Godoi sp. nov. (Amazonas, 1 male and Maranhão, 1 male) and R. victori Pujol-Luz sp. nov. (São Paulo, 1 male). The new species are distinguished from the known species by the number of antennal flagellomeres and abdomen color pattern. A key to identify the Brazilian species of the genus and a distribution map is presented.

 

References

  1. Carrera, M. (1940) Novas espécies do gênero Rachicerus Walker, 1854 (Dipt.). Arquivos de Zoologia do Estado de São Paulo, São Paulo, 1, 387–394. https://doi.org/10.11606/issn.2176-7793.19401387-398
  2. Carrera, M. (1945) Contribuição ao conhecimento do gênero Rachicerus Walker, 1854 (Diptera, Rachiceridae Handlirsch, 1908). Papéis Avulsos do Departamento de Zoologia, 5, 119–134. https://doi.org/10.11606/0031-1049.1945.5p119-134
  3. Cumming, J.M. & Wood, D.M. (2017) Adult morphology and terminology [Chapter 3]. 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. 89–133.
  4. Enderlein, G. (1921) Über die phyletisch älteren Stratiomyiidensubfamilien (Xylophaginae, Chiromyzinae, Solvinae, Beridinae, und Coenomyiinae). Mitteilungen aus dem Zoologischen Museum in Berlin, 10 (1), 151–214. https://doi.org/10.1002/mmnz.4830100105
  5. Frey, R. (1954) Studien über ostasiatische Dipteren. III. Rhachiceridae, Rhagionidae, Hilarimorphidae. Notulae Entomologicae, 34 (1), 1–25.
  6. Hennig, W. (1938) Die Gattung Rhachicerus Walker und ihre Verwandten im Baltischen Bernstein (Dipt.). Zoologischer Anzeiger, 123, 33–41.
  7. Hennig, W. (1967) Die sogenannten “niederen Brachycera” im Baltischen Bernstein (Diptera: fam. Xylophagidae, Xylomyidae, Rhagionidae, Tabanidae). Stuttgarter Beiträge zur Naturkunde, 174, 1–51.
  8. James M.T. (1981) Xylophagidae, Chapter 34. In: McAlpine, F.F, Peterson, B.V., Shewell, G.E., Teskey, H.J. Vockeroth, J.R. & Wood, D.M. (Eds.), Manual of Nearctic Diptera. Vol. 1. Biosystematics Research Institute Ottawa, Ontario, pp. 489–492.
  9. Loew, H. (1872) Diptera Americae septentrionalis indigena. Centuria decima. Berliner Entomologische Zeitschrift, 16 (1), 49–124. https://doi.org/10.1002/mmnd.18720160110
  10. Malloch, J.R. (1917) A preliminary classification of Diptera, exclusive of Pupipara, based upon larval and pupal characters, with keys to imagines in certain families. Part I. Bulletin of the Illinois State Laboratory of Natural History, 12 (3), i–vi + 161–409. https://doi.org/10.5962/bhl.title.9383
  11. Marschall, A.F. (1873) Nomenclator zoologicus continens nomina systematica generum animalium tam viventium quam fossilium, secundum ordinem alphabeticum disposita sub auspiciis et sumptibus C. R. Societatis Zoologico-Botanicae. Caroli Ueberreuter (M. Salzer), Vindobonae [Vienna], IV + (2) + 482 pp. https://doi.org/10.5962/bhl.title.1216
  12. Nagatomi, A. (1970) Rachiceridae (Diptera) from the Oriental and Palaearctic Regions. Pacific Insects, 12 (2), 417–466.
  13. Nagatomi, A. (1982) Notes on Rachiceridae (Diptera). Memoirs of the Kagoshima University Research Center for the South Pacific, Kagoshima, 3, 39–65.
  14. Nagatomi, A. (1997) Family Rachiceridae. In: Papp, L. & Darvas, B. (Eds.), Manual of Palearctic Diptera. Vol. 2. Nematocera and Lower Brachycera. Science Herald, Budapest, pp. 379–386.
  15. Osten Sacken, C.R. (1877) Western Diptera: Descriptions of new genera and species of Diptera from the region west of the Mississippi and especially from California. Bulletin of the United States Geological and Geographical Survey of the Territories, 3 (2), 189–354. https://doi.org/10.5962/bhl.title.57939
  16. Osten Sacken, C.R. (1881) Enumeration of the Diptera of the Malay Archipelago collected by Prof. Odoardo Beccari, M.r L. M. d’Albertis and others. Annali del Museo Civico di Storia Naturale di Genova, 16, 393–492.
  17. Pujol-Luz, J.R. (2019) A new species of the genus Rachicerus Walker (Diptera: Xylophagidae), with notes on Messias Carrera’s 1940 and 1945 types housed in Museu de Zoologia, Universidade de São Paulo and in Instituto Oswaldo Cruz, Rio de Janeiro, Brazil. Zootaxa, 4668 (1), 126–134. https://doi.org/10.11646/zootaxa.4668.1.8
  18. R Core Team (2024) R: A Language and Environment for Statistical Computing. R Foundation for Statistical Computing, Vienna. Available from: https://www.R-project.org/ (accessed 25 February 2025)
  19. Snellen van Vollenhoven, S.C. (1863) Over eene merkwaardige soort van tweevleugelig insect, Antidoxion fulvicorne. Verslagen en Mededeelingen der Koninklijke Akademie van Weten-schappen. Afdeeling Natuurkunde, 15, 1–7.
  20. Walker, F. (1854) List of the specimens of dipterous insects in the collection of the British Museum. Part V. Supplement I. British Museum, London, (6) + 330 pp.
  21. Walker, F. (1861) Catalogue of the dipterous insects collected in Batchian, Kaisaa and Makian, and at Tidon in Celebes, by Mr. A.R. Wallace, with descriptions of new species. Journal of the Proceedings of the Linnean Society, 5 (20), 270–303. https://doi.org/10.1111/j.1096-3642.1861.tb02237.x
  22. Webb, D.W. (1984) A revision of the Nearctic species of Rachicerus (Diptera: Rachiceridae). Journal of the Kansas Entomological Society, 57 (2), 298–315.
  23. Woodley, N.E. (2009) Xylophagidae, Chapter 35. In: Brown, B.V., Borkent, A., Cumming, J.M., Wood, D.M., Woodley, N.E. & Zumbado, M.A. (Eds.), Manual of Central American Diptera. Vol. 1. NCR Research Press, Boca Raton, Florida, pp. 509–512.
  24. Woodley, N.E. (2011) A world catalog of the Xylophagidae (Insecta: Diptera). In: Thompson, F.C., Brake, I. & Lonsdale, O. (Eds.), Contributions to the Biosystematic Database of world Diptera. Myia, 12, 522–568.

How to Cite

Pujol-Luz, J.R. & Godoi, F.S.P.D. (2025) Three new species of the genus Rachicerus Walker (Diptera, Xylophagidae) from Brazil. Zootaxa, 5613 (2), 294–306. https://doi.org/10.11646/zootaxa.5613.2.5