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Hylaeus
The taxonomy of Hylaeus Fabricius, 1793 has been relatively stable throughout time. Most of the species occurring in central Europe were described during the 19th century. However, species are still being described outside Europe (e.g., Dathe 2000), and sibling species are being differentiated from ...
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Tachysphex
Genus Tachysphex Kohl, 1883 is placed into the family Crabronidae, tribe Larrini (Menke 1997) and includes approximately four hundred species from all over the world. They can be found in almost all terrestrial habitats, but occur mainly in semiarid areas. Species of Tachysphex prey on insects fr ...
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Systematics