Effect of Mechanical Disturbance on Median Dorsal Flight Muscle Development of Anastrepha suspensa

Author: SHARP J. L.   LITTLE H. F.  

Publisher: Entomological Society of America

ISSN: 1938-2901

Source: Annals of the Entomological Society of America, Vol.75, Iss.2, 1982-03, pp. : 146-149

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Abstract

The six-stranded median dorsal flight muscle of 5-day-old Anastrepha suspensa (Loew) (Diptera: Tephritidae) reared at 26°C is most sensitive to shaking compared with pupae shaken at other ages. The muscle damage occurs during 10 sec of shaking at 300 rpm and is characterized by detachment from the cuticle at the posterior end and by shortening against the dorsal, anterior thoracic cuticle. The irreversible muscle damage causes the wings of some flies to droop and touch the substrate, whereas other flies appear normal. Such adults with damaged muscles cannot fly.

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