Colletes courtship

Male jumping upon female. This bahaviour has been filmed from above on a little bunch of Tanacetum flowers. The shadow of the male may be used for height estimation.

Colletes_daviesanus_010811_1259

The male is at first moving sideways and at the end is pouncing upon the female. The last part of ..... ms before collision, is given in the animation (5X retarded) to follow.

Colletes_daviesanus_010811_1259_anim

An XY graph of the last part of the path is given here :

Colletes_daviesanus_010811_1259_XYsmall

This behaviour has been modelled.

 

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