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1 September 2015 An Adhesive Collophore May Help Direct the Springtail Jump
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Abstract

The collophore of Entomobrya multifasciata (Tullberg) (Collembola: Entomobryidae) is composed of four segments. The third segment telescopes in and out of the second and the fourth is an eversible vesicle that is entirely enclosed in the third when not deployed. Low temperature scanning electron micrographs document that the collophore may remain adhered to the substrate even as the springtail initiates its jump. This adherence appears to force the posterior abdomen into the air, causing the jump itself to be initiated in a forward direction and accompanied by a forward flip. Among the several other documented functions of the collophore, we suggest that it may serve to affect the direction and trajectory of the springtail during its jump.

© The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com
Colin Favret, Matthieu Tzaud, Eric F. Erbe, Gary R. Bauchan, and Ron Ochoa "An Adhesive Collophore May Help Direct the Springtail Jump," Annals of the Entomological Society of America 108(5), 814-819, (1 September 2015). https://doi.org/10.1093/aesa/sav078
Received: 8 September 2014; Accepted: 14 July 2015; Published: 1 September 2015
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