Eversible-vesicles
Guides
Sminthuridae
globular springtails
Sminthuridae is a family of globular springtails (order Symphypleona) characterized by a rounded body shape, four-segmented antennae with successively lengthening segments, and an exceptionally long ventral tube with eversible vesicles. Members possess well-developed tracheae and a furcula for jumping. The family includes 13 genera and is distinguished from the similar Sminthurididae by antennal structure and dens setation. Some species are notable agricultural pests, while others are common in forest litter and snow habitats.