Males to 0.5 mm females to 1.0 mm.
Yellow with some bluish pigment
Widely distributed in Europe. Probably an introduced sopecies.
"Very small globular springtails with dimorphic sexes. The males are half the size of the females and have modified clasping antennae with which they can grab the bases of the antennae of a female. Look out for such head-to-head interconnected couples in the colony!" -- comment by Frans Janssens