Fig. 2

Springtails attached onto a termite and an ant from ~ 16 Ma old Dominican amber. a AMNH DR-NJIT001_sa-b respectively grasping onto the termite (AMNH DR-NJIT001_a) left antenna and left anterior wing costal margin. b AMNH DR-NJIT001_sd on the termite left posterior wing. c AMNH DR-NJIT001_sv attached to the posterior mid-leg of the ant (AMNH DR-NJIT001_b). d AMNH DR-NJIT001_sz found on the termite right posterior wing costal margin. e AMNH DR-NJIT001_ss showing furcula. f AMNH DR-NJIT001_si-k displaying respectively clasping organ (AMNH DR-NJIT001_sk, male), segmented antennomere 4 and ocelli (AMNH DR-NJIT001_sj). g AMNH DR-NJIT001_se-h found onto/close to the right anterior wing costal margin, with close-up on AMNH DR-NJIT001_se attachment to the margin using antennae and buccal cone. an = antennomere 4, ant = antennae, buc = buccal cone, e = eye, fur = furcula, oc = ocelli, cla = clasping organ, leg = leg, w = wing. Arrows indicate the anterior of springtail individuals, Dashlines outlining margin costa. A-B, stereoscope images; C-G compound microscope and confocal reflectance images. Scale bars = 0.5 mm (A-B); (C-G). Photographs, N. Robin