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Chapter Summary

Criorhina are woodland species and mainly visit the flowers of trees and shrubs. The author found numerous C. pachymera visiting Acer campestre flowers. Many species maintain territories at the bases of tree trunks or seem to inspect the bark, travelling from tree to tree. Their larvae live in dead wood. Criorhina are large bee and bumblebee mimics. They can be separated from other large bee and bumblebee mimics (e.g. Mallota, Arctophila, Pocota, Brachypalpus) by the typical form of their antennae: the third segment is (much) shorter than it is wide, while the first segments are much thinner and form a stalk. In Criorhina, the face projects downwards, in contrast to Pocota and Brachypalpus. Criorhina species fall into two groups: bumblebee mimics: C. berberina, C. ranunculi and C. floccosa, and honeybee mimics: C. pachymera and C. asilica.

Keywords: Acer campestre flowers; C. pachymera; Criorhina



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