Melittidae
Melittidae | ||||||||||
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Melitta nigricans male |
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Systematics | ||||||||||
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Scientific name | ||||||||||
Melittidae | ||||||||||
Michener , 2000 | ||||||||||
Subfamilies | ||||||||||
The Melittidae is a small family of bees . About 200 species and 14 genera are known. All species are solitary and nest in the ground. Many of the species are oligolectic, that is, they specialize in certain types of plants. A peculiarity of the Melittidae is that "collecting oil" occurs in this family. Species of the genera Rediviva and Macropis have special hairs on the front and middle legs with which they collect oil, which the larvae deposit in the nests for pollen as food. The oil comes from flowers, e.g. B. of Lysimachia , in elaiophores secrete oil. An extinct species ( Paleomacropis eocenicus ) that was found in amber also had hair that was probably used to collect oil.
features
The Melittidae are similar to the Andrenidae . They are short-tongued bees and leg collectors like these . Unlike most Andrenidae, however, they have reduced scopae on the femur to the coxa . The scopae lie on the tibia and basitarsus . The Melittidae generally have quite short, pointed tongues and unspecialized labial palps , the first two limbs of which are quite short. Their middle coxae are similar to those of the long-tongued bees. There is no characteristic that is common to all Melittidae and cannot be found in any other bee family. The Meganomiinae are large species over 17 mm.
distribution
The species of the family are Palearctic and common in southern Africa . The greatest diversity is found in southern Africa. The family is rare in North America, only Hesperapis is quite common here in the western United States and Mexico. Species of Dasypodainae and Melittinae occur in the Palearctic area. The Meganomiinae are restricted to Africa. No Melittidae are known in South America, Australia and Antarctica.
Systematics
External system
The systematic position of the Melittidae is not yet clearly understood. Traditionally and by several authors, they are regarded as the sister group of the "long-tongued bees" (see also cladogram below). There are molecular biological studies according to which the Melittidae represent the most basic bee family, i.e. the sister group of all other bees, and it is discussed whether the Melittidae are monophyletic.
Anthophila bees |
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Internal system
The following is the internal system of the Melittidae according to Michez et al. (2009).
Melittidae |
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Individual evidence
- ^ A b c John Plant & Hannes F. Paulus : Evolution and phylogeny of bees review and cladistic analysis in light of morphological evidence (Hymenoptera, Apoidea) . Schweizerbart Science Publishers, Stuttgart 2016, ISBN 978-3-510-55048-7 .
- ↑ a b c d Denis Michez, Sébastien Patiny, Bryan N. Danforth (2009): Phylogeny of the bee family Melittidae (Hymenoptera: Anthophila) based on combined molecular and morphological data. Systematic Entomology 34: 574-597. [1]
- ↑ Ch. D. Michener: Bees of the World . 2007, ISBN 978-0-8018-8573-0 , pp. 972 ( com.ua [PDF]).