Fruitful Easter. Thaumatomyia notata, Yellow Swarming Fly, Venlo, The Netherlands
These really tiny flies - perhaps 2.5 to 3 mm - are now in the Easter air! And they're set on multiplication. On the inset bottom left you'll see a male with his swollen everted yellow testicles. All about their function isn't clear. Obviously they're meant for multiplication but apparently, too, they emit a pheromene that attracts females such as the one in the inset on the bottom right. The main picture shows what happens when they meet...
Fruitful Easter. Thaumatomyia notata, Yellow Swarming Fly, Venlo, The Netherlands
These really tiny flies - perhaps 2.5 to 3 mm - are now in the Easter air! And they're set on multiplication. On the inset bottom left you'll see a male with his swollen everted yellow testicles. All about their function isn't clear. Obviously they're meant for multiplication but apparently, too, they emit a pheromene that attracts females such as the one in the inset on the bottom right. The main picture shows what happens when they meet...