http://www.collembola.org/slides/setaea10.htm - Last updated on 2001.09.05 by Frans Janssens
Checklist of the Collembola: Morphology of the setae: slide 10 of 14


Fig.10. Setal basis. Janssens, F. © 1999.
Setal basis
Setae arise from a slight cup-like depression of the cuticle, the setal alveolus or socket. At its base the seta is attached by a ring of articular membrane, the setal membrane.