Zootaxa 766: 1–4 (2004) www.mapress.com/zootaxa/
ISSN 1175-5326 (print edition)
Copyright © 2004 Magnolia Press
ISSN 1175-5334 (online edition)
ZOOTAXA
Nomenclatural changes in leafcutter bees of the Americas: Megachile Latreille 1802 (Hymenoptera; Megachilidae) ANTHONY RAW Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil. 45650000.
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Abstract Five species of Megachile are placed in their correct subgenera, raising the total number of correctly placed species of this genus to 519 in the Americas. Megachile (Dasymegachile) mitchelli new name is proposed for Cressoniella (Chaetochile) golbachi Schwimmer, in Mitchell, 1980. Key words: Hymenoptera, Megachilidae, Megachile, subgeneric allocation, new name
Introduction Five species of leafcutter bees, Megachile Latreille 1802 (Hymenoptera; Megachilidae) of the Americas are placed in their correct subgenera and one is renamed. Five holotypes were examined and one change is based on museum specimens. A total of 519 species of the Americas are now allocated to their correct subgenera (Durante and Abrahamovich 2002, Raw 2002, 2004, Genaro 2003).
Megachile (Chrysosarus) luederwaldti Schrottky, new combination Megachile luederwaldti Schrottky 1913: 189. Female. Type locality: Campos do Jordão, São Paulo State [Brazil], 16 February 1906 (Coll. H. Lüderwaldt). Type repository: Museu de Zoologia, da Universidade de São Paulo, Brazil. Examined. Megachile (Chelostomoides) luederwaldti : Moure 1943: 176.
Accepted by J. Whitfield: 5 Dec. 2004; published: 14 Dec. 2004
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Megachile (Cressoniella) porrectula Cockerell, new combination
766 Megachile porrectula Cockerell 1914: 428. Replacement name for Megachile acuta Vachal 1908: 244. Male. Type locality: Mapirí, Bolivia. Type repository: Vachal Collection, Musée National de Histoire Naturelle, Paris, France. Examined. (Not Megachile (Xanthosarus) acuta Smith 1853: 192. Female. Type locality: Mexico. Type repository: BMNH 17a2412. = Megachile latimanus Say 1823. Synonymy of Dalla Torre 1896: 436 and Cockerell 1905: 337.)
Megachile (Cressoniella) sonorana Cockerell, new combination Megachile sonorana Cockerell 1924: 552. Female. Type locality: Guaymas, Sonora, Mexico, 8 April 1921 (coll. E. P. Van Duzee). Type repository: #1518, California Academy of Science, Los Angeles, U.S.A. Not examined.
Specimens of M. sonorana at the Bee Biology and Systematics Laboratory, Utah State University, Logan, U.S.A. said to have been identified by Professor T. B. Mitchell are members of this subgenus.
Megachile (Dasymegachile) mitchelli new name New name for Cressoniella (Chaetochile) golbachi Schwimmer, in Mitchell 1980: 87. (Not Megachile golbachi Schletterer 1891 [Zaire].) Megachile (Dasymegachile) golbachi Michener 2000: 555. Female. Type locality: La Quiaca, Jujuy Province, Argentina. Type repository: United States National Museum, Washington DC, U.S.A. Examined.
Megachile (Leptorachis) zexmaniae Cockerell, new combination Megachile zexmaniae Cockerell 1912: 24. Female. Type locality: Quiringa, Guatemala. Type repository: American Museum of Natural History, New York, U.S.A. Examined.
Megachile (Pseudocentron) possograndensis Schrottky, new combination Megachile poçograndensis Schrottky 1902: 438. Female. Type locality: Poço Grande, S. Paulo [state], Brazil, January (Hempel). Type repository: Museu de Zoologia, da Universidade de São Paulo. Examined. [Type is missing left fore tarsi.] Megachile possograndensis : Schrottky 1913: 172. New spelling. Megachile (Pseudocentron) poçograndensis : Mitchell 1943: 664. Megachile (Moureapis) possograndensis : Raw 2002, 7: 25.
The two sexes of this species had not been associated previously. The present combination 2
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is based on examination of a series of seven females and three males collected in Santa Catarina State in southern Brazil by Srta. Denise Mouga. Although the bees were not reared from a nest, no other bee similar to them was encountered during a survey which included 115 specimens of Megachile. The female of M. possograndensis bears the slight indentation at the centre of the apical margin of the labrum and narrow sixth sternite typical of the subgenus Moureapis, though the inner angle of the mandible is acute. However the male is clearly a Pseudocentron with greatly expanded ivory fore basitarsi. The fore basitarsi of Moureapis are unmodified.
Acknowledgement I thank Srta. Denise Mouga of the Departamento de Zoologia, Universidade de São Paulo for the loan of specimens of Megachile possograndensis.
References Brèthes, J. (1909) Hymenoptera Paraguayensis. Anales del Museo Nacional de Buenos Aires, 19: 225–226. Cockerell, T.D.A. (1905) Notes on some bees in the British Museum. Transactions of the American Entomological Society, 31, 309–364. Cockerell, T.D.A. (1912) Descriptions and records of bees. —XLV. Annals and Magazine of Natural History, (8) 10, 21–31. Cockerell, T.D.A. (1914) Descriptions and records of bees. —LVIII. Annals and Magazine of Natural History, (8) 13, 424–433. Cockerell, T.D.A. (1924) Expedition of the California Academy of Sciences to the Gulf of California in 1921. The bees (II). Proceedings of the California Academy of Sciences, (4) 12, 529– 560. Dalla Torre, C.G. de (1896) Catalogus Hymenopterorum, 10: Apidae (Anthophila). Engelmann, Leipzig, 643 pp. Durante, S.P., Abrahamovich, A.H. (2002) New leafcutting bee species of the subgenus Megachile (Dasymegachile) (Hymenoptera, Megachilidae) from Magellanic Forest province, in Patagonia Argentina. Transactions of the American Entomological Society, 128, 361–366. Genaro, J.A. (2003) Megachile (Pseudocentron) jerryrozeni, a new species of leafcutting bee (Hymenoptera: Megachilidae) from the Cayman Islands. Journal of the Kansas Entomological Society, 76: 286–289. Latreille, P.A. (1802) Histoire Naturelle de Fourmis. Crapelet, Paris. xvi + 445 pp. Michener, C.D. (2000) The Bees of the World. Johns Hopkins University Press, Baltimore, 912 pp. Mitchell, T.B. (1943) On the classification of neotropical Megachile (Hymenoptera: Megachilidae). Annals of the Entomological Society of America, 36, 656–671. Mitchell, T.B. (1980) A generic revision of the megachiline bees of the Western Hemisphere. North Carolina State University, Raleigh. 95 pp. Moure, J.S. (1943) Abelhas de Batatais (Hym. Apoidea). Arquivos do Museu Paranaense, 3: 145– 203.
MEGACHILE NOMENCLATURE
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Raw. A. (2002) New combinations and synonymies of leafcutter and mason bees of the Americas (Megachile, Hymenoptera, Megachilidae). Zootaxa, 7, 1–43. Raw. A. (2004) Leafcutter and mason bees: a biological catalogue of the genus Megachile of the Neotropics. Available from http://alpha.uesc.br/anthonyraw/ (accessed 3 June 2004). Say, T. (1823) A description of some new species of Hymenopterous insects. Western Quarterly Reporter, 2, 71–82. Schletterer, A. (1891) Hymenoptera in expeditione sub auspicio Regii Imperii Belgici perfecta in regione Africae ad Congo flumen inferius collecta. Annales de la Societé Entomologique de Belgique, 35, 5–14 (+ 2 plates). Schrottky, C. (1902) Ensaio sobre as abelhas solitárias do Brazil. Revista do Museu Paulista, 5: 330–613. Schrottky, C. (1913) As espécies brazileiras do gênero Megachile (Hymenoptera). Revista do Museu Paulista, 9, 134–223. Silveira, F.A., Melo, G.A.R., Almeida, E.A.B. (2002) Abelhas Brasileiras. Sistemática e Identificação. F. A. Silveira, Belo Horizonte, Brazil, 253 pp. Smith, F. (1853) Catalogue of Hymenopterous Insects in the Collection of the British Museum. Part I. Trustees of the British Museum, London, 197 pp. Vachal, J. (1908) Espéces nouvelles ou litigeuses d’Apidae du haut bassin du Parana et des Régions contigües et d’elimitation d’une nouvelle sous-famille Diphaglossinae (Hym). Revue d'Entomologie, Caen, 27, 221–244.
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