Rediviva (Gigaviva) Kuhlmann, Jürgensen, and Michez 2020
- Dataset
- Subgeneric classification of the bee genus Rediviva Friese (Hymenoptera: Apiformes: Melittidae)
- Rank
- SUBGENUS
- Published in
- Kuhlmann, Michael, Jürgensen, Lea-Sophie, Michez, Denis (2020): Subgeneric classification of the bee genus Rediviva Friese (Hymenoptera: Apiformes: Melittidae). Zootaxa 4790 (2): 318-328, DOI: 10.11646/zootaxa.4790.2.7
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Insecta
- order
- Hymenoptera
- family
- Melittidae
- genus
- Rediviva
diagnosis
Diagnosis. The subgenus is monotypic and contains only R. gigas which is the largest species of the genus (15 – 18 mm). Males are characterised by a combination of S 7 without lateral lobes (with lateral lobes in all other species except Redivivoides karooensis and R. namaquaensis), median lobes basally twice as broad as long (Whitehead & Steiner 2001: Figs 5 B – C) (as broad as long or longer in other subgenera) and S 8 apically broadened with margin deeply cleft (strait, notched, emarginate or semi-circular in other subgenera) (Whitehead & Steiner 2001: Figs 5 D, 64 G). Females show a unique combination of a broadened hind tibia and basitarsus with the scopa consisting of densely plumose pubescence for transporting floral oil (Fig. 3 f) (in Redivivoides hind tibia not broadened and without plumose pubescence) and a tridentate mandible (bidentate in other subgenera). The species has an isolated position within the genus and, among others, collects oil on flowers of Tritoniopsis parviflora (Iridaceae) (Manning & Goldblatt 2002, 2005) and Ixianthes retzioides (Scrophulariaceae) (Whitehead & Steiner 1993, Steiner & Whitehead 1996) that are not used by any other Rediviva species (Kuhlmann & Hollens 2015).
distribution
Distribution. The species is only known from the southwestern part of the winter rainfall region (Whitehead & Steiner 2001).
etymology
Etymology. The new subgeneric name is a combination of the first part of the specific epithet of the type species R. gigas and the last part of the generic name Rediviva. The gender of the name is feminine.
materials_examined
Type species: Rediviva (Gigaviva) gigas Whitehead & Steiner 1993, designated here. The only species in this subgenus is R. gigas.