✦ LIBER ✦

What makesBlepharida jump? A structural study of the metafemoral spring of a flea beetle

✍ Scribed by Furth, David G. ;Traub, Wolfie ;Harpaz, Isaac

Book ID: 102335406
Publisher: John Wiley and Sons
Year: 1983
Tongue: English
Weight: 439 KB
Volume: 227
Category: Article
ISSN: 0022-104X
DOI: 10.1002/jez.1402270107

No coin nor oath required. For personal study only.

✦ Synopsis

Blepharida sacra (Weise) is one of many species of flea beetles that have remarkable jumping abilities. The energy for its prodigious leaps is evidently stored in a central scroll-shaped organ inside the hind femur of this insect-the metafemoral spring. X-ray diffraction, scanning electron microscope, and analytical studies have established that this structure consists primarily of well-oriented fibers of the polysaccharide a-chitin, together with protein. The composition and orientation of these fibers appear to explain the role of this organ in the flea beetle jumping mechanism.

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