"The arrester system includes the adjusting organs of two body segments--the head and neck--and consists of (i) the skeleton-muscle apparatus that moves the head and neck sclerites, (ii) co-opted microsculptures, which are fields of microtrichia on the rear surface of the head (MFH) and on the post-cervical sclerites of the neck (SPCs), (iii) the secretory apparatus consisting of epidermal cells, which produces lipid substances which pass through porous channels in the cuticle into the region of contact between the MFH and SPCs, and (iv) sensory organs monitoring contact between the MFH and SPCs and the position of the SPCs relative to the other neck sclerites (Gorb 1991a). (Gorb 1999:525)
Arrow shows location of dragonfly arrestor mechanism. Artist: Meghan Hanson Powers. Copyright: All rights reserved by Biomimicry 3.8 Institute.
Two kinds of top and bottom microtrichia, separated on the top and attached on the bottom. Artist: Meghan Hanson Powers. Copyright: All rights reserved by Biomimicry 3.8 Institute.