Fig. 3. A. aculeatus. (A) Left gland, exposed by cutting away part of the carapace. (B) Rear view of male, showing the hindlegs with their femoral spurs. (C) Individual under attack by ants (Formica exsectoides), before having emitted its defensive fluid. (D) Ant in the process of cleaning itself, in response to exposure to the defensive effluent of the opilionid. (E,F) Individual being inspected and spurned by a wolf spider (Lycosa ceratiola).