Gess F.W. 1989. A species of the genus Celonites
Latreille (Hymenoptera: Masaridae) from South Africa. Ann. Cape Prov.
Mus. (Nat. Hist.), Vol 18: 83-94.
Gess F.W. 1992. A New South African Species of the
Genus Celonites
Latreille (Hymenoptera: Vespidae, Masarinae) Associated with the Flowers
of Wahlenbergia (Campanulaceae). J. HYM.
RES., Vol 1: 141-144.
Gess, F.W. 1997. Contribution to the knowledge of
Ceramius Latreille, Celonites Latreille, Jugurtia
Saussure and Masarina Richards
(Hymenoptera: Masaridae) in South Africa. J. HYM.
RES., Vol 6: 36-74.
Gess, F.W. 2007. Four New Species of the Wasp Genus Celonites Latreille,
180
(Hymenoptera: Vespidae: Masarinae) from South-west Africa, Designation
of Neotype for C. michaelseni von Schulthess, 1923, Species
Representation in Namibia, and Key to Species Occurring in Namibia. J. HYM.
RES., Vol 16: 11-29.
Gess, S.K. & Gess, F.W. 1989. Flower visiting by masarid wasps in southern Africa (Hymenoptera: Vespoidea: Masaridae). Ann. Cape Prov. Mus. (nat. Hist.)
18(5): 95‑134.
Gess, S.K. & Gess, F.W. 2004. Distributions of flower
associations of pollen wasps (Vespidae: Masarinae) in southern Africa.
Journal of Arid Environments 57(1): 17-44.
Gess, S.K. & Gess, F.W. 2004. The Distributions of the
genera of the pollen wasps (Hymenoptera: Vespidae: Masarinae) in the
semi-arid to arid areas of southern Africa in relation to their
requirements for successful nesting. Transactions of the Royal
Society of South Africa 59(2): 23-27. |