Clemelis pullata

Clemelis pullata is a species of fly in the family Tachinidae. This family consists of dipteran tachina flies, which are protelean parasitoids of arthropods.

This species (previously called Zenillia pullata) is said to have the world's smallest insect eggs, with dimensions of 0.027 by 0.02 mm (about 8 nanograms).

Distribution
British Isles, Czech Republic, Hungary, Moldova, Poland, Romania, Slovakia, Ukraine, Denmark, Finland, Sweden, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Greece, Italy, Macedonia, Malta, Portugal, Serbia, Slovenia, Spain, Turkey, Austria, Belgium, France, Germany, Switzerland, Israel, China, Mongolia, Morocco, Russia, Armenia.