Abstract
As part of a broader treatment of Eucerini systematics, a new genus and a new subgenus are described to accommodate previously described species. Savannychapis gen. n. is described to accommodate Gaesischia interrupta Urban 1989, originally described as a species of Gaesischia (Gaesischiana) Michener et al. 1955, and Gaesischia (Gaesischioides) subgen. n. to accommodate Gaesischia hyptidis (Ducke 1910), previously included in Gaesischia s. str. Michener et al. 1955 and G. (Agaesischia) Moure & Michener 1955. These new taxa are only known in the South American dry diagonal, a set of open vegetation biomes of central-eastern South America.
References
Bossert, S., Murray, E.A., Almeida, E.A.B., Brady, S.G., Blaimer, B.B. & Danforth, B.N. (2019) Combining transcriptomes and ultraconserved elements to illuminate the phylogeny of Apidae. Molecular Phylogenetics and Evolution, 130, 121–131. https://doi.org/10.1016/j.ympev.2018.10.012
Dorchin, A., Danforth, B.N. & Griswold, T. (2018a) A new genus of eucerine bees endemic to southwestern North America revealed in phylogenetic analyses of the Eucera complex (Hymenoptera: Apidae: Eucerini). Arthropod Systematics & Phylogeny, 76, 215–234.
Dorchin, A., López-Uribe, M.M., Praz, C.J., Griswold, T. & Danforth, B.N. (2018b) Phylogeny, new generic-level classification, and historical biogeography of the Eucera complex (Hymenoptera: Apidae). Molecular Phylogenetics and Evolution, 119, 81–92. https://doi.org/10.1016/j.ympev.2017.10.007
Ducke, A. (1910) Contribution a la connaissance de la faune hyménoptérologique du Nord-Est du Brésil. Revue d’Entomologie Caen, 28, 78–122.
Freitas, F.V., Branstetter, M.G., Griswold, T. & Almeida, E.A.B. (2021) Partitioned Gene-Tree Analyses and Gene-Based Topology Testing Help Resolve Incongruence in a Phylogenomic Study of Host-Specialist Bees (Apidae: Eucerinae). Molecular biology and evolution, 38, 1090–1100. https://doi.org/10.1093/molbev/msaa277
Freitas, F.V., Santos Júnior, J.E., Santos, F.R. & Silveira, F.A. (2018) Species delimitation and sex associations in the bee genus Thygater, with the aid of molecular data, and the description of a new species. Apidologie, 49. https://doi.org/10.1007/s13592-018-0576-0
Freitas, F.V., Santos Júnior, J.E., Santos, F.R. & Silveira, F.A. (2019) A phylogenetic study of the Thygater‐Trichocerapis group and new scopes for the subgenera of Thygater Holmberg, (Hymenoptera, Apidae). Systematic Entomology, 44, 728–744. https://doi.org/10.1111/syen.12351
Freitas, F.V. & Silveira, F.A. (2017) Synopsis of the bee genus Thygater Holmberg 1884 (Hymenoptera, Apidae) in the Brazilian state of Minas Gerais, with the description of a new species and a key to all Brazilian species. Zootaxa, 4238 (1), 1–29. https://doi.org/10.11646/zootaxa.4238.1.1
LaBerge, W.E. (1956a) A revision of the bees of the genus Melissodes in North and Central America. Part I. The University of Kansas Science bulletin, 38, 911–1194. https://doi.org/10.5962/bhl.part.24549
LaBerge, W.E. (1956b) A revision of the bees of the genus Melissodes in North and Central America. Part II. The University of Kansas Science Bulletin, 38, 533–578.
Laberge, W.E. (1958) Notes on the genus Gaesischia Michener, LaBerge and Moure, with descriptions of a new species and subgenus from Mexico. The Pan-Pacific Entomologist, 34, 195–201.
LaBerge, W.E. (1961) A revision of the bees of the genus Melissodes in North and Central America. Part III. The University of Kansas Science bulletin, 42, 283–663. https://doi.org/10.5962/bhl.part.9821
LaBerge, W.E. (2001) Revision of the bees of the genus Tetraloniella in the New World (Hymenoptera: Apidae). Illinois Natural History Survey Bulletin, 36, 67–162. https://doi.org/10.21900/j.inhs.v36.125
Michener, C.D. (2007) The Bees of the World. 2nd Edition. The Johns Hopkins University Press, Baltimore, Maryland, 953 pp.
Michener, C.D., LaBerge, W.E. & Moure, J.S. (1955) Some American Eucerini bees. Dusenia, 6, 213–228.
Moure, J.S. & Michener, C.D. (1955) A contribution toward the classification of neotropical Eucerini (Hymenoptera, Apoidea). Dusenia, 6, 239–331.
Silveira, F.A., Melo, G.A.R. & Almeida, E.A.B. (2002) Abelhas Brasileiras: Sistematica e identificação. 1st Edition. Authors edition, Belo Horizonte, 254 pp.
Urban, D. (1967a) As espécies do gênero Dasyhalonia Michener LaBerge & Moure, 1955 (Hymenoptera—Apoidea). Revista Brasileira de Biologia, 27, 247–266.
Urban, D. (1967b) As espécies do gênero Thygater Holmberg, 1884. Boletin da Universidade do Paraná, 12, 177–309.
Urban, D. (1967c) As espécies do gênero Thygater Holmberg, 1984 (Hymenoptera, Apidae). Boletim da Universidade Federal do Paraná, 12, 177–309.
Urban, D. (1967d) O gênero Lophothygater Moure & Michener, 1955 (Hymenoptera, Apoidea). Dusenia, 8, 135–145.
Urban, D. (1968a) As espécies de Gaesischia Michener, LaBerge e Moure, 1955. Boletim da Universidade Federal do Paraná, 3, 79–129.
Urban, D. (1968b) As espécies do gênero Melissoptila Holmberg, 1884 (Hymenoptera-Apoidea). Revista Brasileira de Entomologia, 13, 1–94.
Urban, D. (1970) As espécies do gênero Florilegus Robertson, 1900 (Hymenoptera, Apoidae). Boletim da Universidade Federal do Paraná, 3, 245–280.
Urban, D. (1971) As espécies de Alloscirtetica Holmberg, 1909. Boletin da Universidade do Paraná, 16, 307–369.
Urban, D. (1972) As espécies de Svastrides Michener, LaBerge e Moure, 1955. Revista Brasileira de Biologia, 32, 485–498.
Urban, D. (1973) As espécies sulamericanas do gênero Melissodes (Latreille, 1829) (Hymenoptera, Apoidea). Revista Brasileira de Biologia, 33, 201–220.
Urban, D. (1974a) O gênero Gaesochira Moure & Michener, 1955. Revista Brasileira de Biologia, 34, 315–321.
Urban, D. (1974b) O gênero Pachysvastra Moure & Michener, 1955 (Hymenoptera, Apoidea). Revista Brasileira de Biologia, 34, 323–330.
Urban, D. (1989a) Dois gêneros novos de Eucerinae neotropicais (Hymenoptera, Apoidea). Revista Brasileira de Zoologia, 6, 117–124. https://doi.org/10.1590/S0101-81751989000100013
Urban, D. (1989b) Duas espécies novas do gênero Trichocerapis Cockerell, 1904 (Hymenoptera, Apoidea). Revista Brasileira de Zoologia, 6, 457–462. https://doi.org/10.1590/S0101-81751989000300006
Urban, D. (1989c) Espécies novas e notas sobre o gênero Gaesischia Michener, LaBerge, Moure, 1955 (Hymenoptera, Apoidea). Revista Brasileira de Entomologia, 33, 75–102.
Urban, D. (2003) Santiago wittmanni sp. nov. do Peru e notas sobre Eucerini (Hymenoptera, Anthophoridae). Revista Brasileira de Zoologia, 20, 201–205. https://doi.org/10.1590/s0101-81752003000200005
Urban, D., Moure, J.S. & Melo, G.A.R. (2012) Eucerini Latreille, 1802. In: Urban, D., Moure, J.S. & Melo, G.A.R. (Eds.), Catalogue of Bees (Hymenoptera, Apoidea) in the Neotropical Region. Curitiba. [online version]
Wright, K.W., Miller, K.B. & Song, H. (2020) A molecular phylogeny of the long-horned bees in the genus Melissodes Latreille (Hymenoptera: Apidae: Eucerinae). Insect Systematics & Evolution, 1–16. [published online] https://doi.org/10.1163/1876312x-bja10015