Mitutoyo 10x NA 0.28, tube lens: ITL 200 (Nikon)

llumination: Oblique

The male have an additional chemo-sensor on their head, certainly to find distant females.

This species originates from tropical regions and can normally not survive north to the Alps (Bavaria). However, from time to time I find them in our kitchen, and I suspect that I “import” them by buying (ecologically grown) oranges or lemons.

These beautiful flies are considered to be one of the most destructive fruit pests in the world.

Found on Flickr