Villa modesta

Egmond_Bloedweg_Villa_modesta_mn_op_peen_140812_1220_Part

Villa modesta male.

Villa modesta is a bee fly (Bombyliidae) inhabiting coastal sand dunes. The egg laying behaviour is typical for a bee fly. The females are shooting eggs into dark places. Every now and then females are rubbing their abdomen in the sand in a characteristic way with moving wings. Probably they are filling the sand-chamber with sand on these occasions. A picture taken during this behaviour is given here.

Egmond_Wimmenummerduinen_Villa_modesta_vr_wing_vibration_150812_1442_Part

The sand filling behaviour has been filmed. An animation has been derived from this film (2X retarded) :

Villa_zandbewerken_150812_1440_anim

After filling the sand chamber the eggs are shot. An animation (6 times retarded) of this behaviour, filmed from above, is to be found here.

Egmond_Villa_modesta_vr_ei_schot_150812_1345_Anim

An other example (10X retarded) :

This behaviour has also been found with Bombylius major, Anthrax anthrax and Thyridanthrax fenestratus.

Male behaviour

Males may be found waiting for females, but may also search for females in the vegetation. Males may also courtship behaviour. A male has been observed hovering above a female for 10 seconds. The male is moving forward and backward over a short distance. An animation of this behaviour 10X retarded, is given here. The female is sitting in the lower right part of the picture.

 

Habitat of Villa modesta (Egmond aan Zee)

Egmond_Wimmenummerduinen_overzicht_Begroeiing_150812_1321_small

 

 

 

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.