Springtails are classified in about thirty families divided into four orders. There are two morphological types in Springtails, Arthropleones and Symphypleones. Their size varies between 1 and 4 mm on average but can go down to 0.12 mm (Sphaeridia pilleata - Symphypleone, probably the smallest known adult Hexapode) or around 17 mm (Holacanthella duospinosa - Neanuridae living in New Zealand). Although their bodies can sometimes have bright tones (yellow, red, orange), their colors are rather dull, ranging from gray, beige, brown, bluish, yellowish or milky white. In the tables below, the numbers in blue indicate the number of species belonging to the different families forming a give order.
Poduromorphs: (3272 species *) - Entomobryomorphs: (4077 species *)
Symphypleones: (1389 species *) - Neelipleones: (42 species *)
* Tables filled in from the date of 05/11/2017 - source: Frans Janssens - collembola.org