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Arrested Development in X-rayed Larvae of Ephestia kuehniella Zeller (Lepidoptera: Phycitinae)

H. E. Erdman
The American Midland Naturalist
Vol. 69, No. 1 (Jan., 1963), pp. 34-37
DOI: 10.2307/2422842
Stable URL: http://www.jstor.org/stable/2422842
Page Count: 4
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Arrested Development in X-rayed Larvae of Ephestia kuehniella Zeller (Lepidoptera: Phycitinae)
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Abstract

Arrested development was induced by massive doses of x-rays in Ephestia larvae and biological interpretations are proffered, i.e., adverse influence upon neurosecretory interactions and/or upon the imaginal discs. No genetically explainable effects were noted between the sexes. The instantaneous lethal dose for larvae within 3 to 5 days of pupation is in excess of 50 kr. For most practical purposes death occurred at 15 kr because at this dose and those higher further development ceased. Increased incidence of disease, apathy toward food, lethargy, uncoordinated movements when probed, and wing abnormalities were other radiation-induced effects noted.

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