Diodontus
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| Curtis , 1834 |
Diodontus is a genus of digger wasps (Spheciformes) from the Crabronidae family. There are 76 known species worldwide, around half of which are distributed in the Palearctic . 14 species are common in Europe, six are also found in Central Europe.
features
The relatively small digger wasps are black and resemble those of the genus Passaloecus . Unlike these, however, they have two mandibular teeth and a ragged labrum . The pleura of Mesonotums are significantly depending on the type or slightly network structured. The rails ( tibia ) of the hind legs have short thorns on the outside. As with the genus Pemphredon , the females have a well-developed pygidial plate, which, however, in the genus Diodontus is not narrow, but broad and triangular in shape.
Way of life
The females lay their nests in the sandy or loamy soil on horizontal and vertical surfaces. The cells are supplied with green aphids (Aphididae), which are packed with the mandibles in flight . The female does not close the nest during the hunt; if the prey is carried into the nest, however, it is locked from the inside.
Parasites of the genus Diodontus exist among the golden wasps , for example Omalus cressoni parasitized in North America in the nests of Diodontus occidentalis and Omalus intermedius in those of Diodontus virginianus . Other parasitoids of Diodontus occidentalis are the ant wasps Morsyma ashmeadii and Smicromutilla powelli .
Taxonomy
By confusing the type specimens , the Diodontus species were assigned to the genus Xylocelia in the USA until 1968 . After a decision by the ICZN , Diodontus tristis was designated as a type specimen for the genus.
Species (Europe)
- Diodontus bejarensis Gayubo 1982
- Diodontus brevilabris Beaumont 1967
- Diodontus crassicornis Gribodo 1894
- Diodontus freyi Bischoff 1937
- Diodontus handlirschi Kohl 1888
- Diodontus hyalipennis Kohl 1892
- Diodontus insidiosus Spooner 1938
- Diodontus luperus Shuckard 1837
- Diodontus major Kohl 1901
- Diodontus medius Dahlbom 1844
- Diodontus minutus (Fabricius 1793)
- Diodontus oraniensis (Lepeletier 1845)
- Diodontus tristis (Vander Linden 1829)
- Diodontus wahisi Leclercq 1974
supporting documents
literature
- Manfred Blösch: The digger wasps in Germany: way of life, behavior, distribution . 1st edition. Goecke & Evers, 2000, ISBN 3-931374-26-2 .
Individual evidence
- ↑ a b c d Manfred Blösch: The digger wasps in Germany: way of life, behavior, distribution . 1st edition. Goecke & Evers, 2000, ISBN 3-931374-26-2 , pp. 162 f .
- ^ Diodontus. Fauna Europaea, accessed July 23, 2010 .
- ↑ Richard Mitchell Bohart and Arnold S. Menke: Sphecid wasps of the world: a generic revision. University of California Press, 1976, p. 178 ISBN 978-0-52002-318-5
