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OVIPOSITION, DEVELOPMENT OF EGGS, AND CHROMOSOME COMPLEMENT OF EGGS OF VIRGIN FEMALES OF THE GRASSHOPPER MELANOPLUS SANGUINIPES

Published online by Cambridge University Press:  31 May 2012

D. S. Smith
D. S. Smith
Affiliation:
Research Station, Canada Department of Agriculture, Lethbridge, Alberta
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Abstract

Virgin females of Melanoplus sanguinipes (Fabricius) crowded in cages laid normal egg pods whereas solitary ones did not. An average of 8.3 pods per female were laid at a rate of 0.12 pod per female-day. This is less than those laid by fertilized females, and the difference seems to be in the rate of mobilization of materials for the eggs; 56.5% of the eggs showed no development. The remainder developed to varying stages and 5.6% hatched. Diploid, haploid, and subdiploid chromosome numbers were found in parthenogenetic embryonic tissue.

Type
Articles
Information
The Canadian Entomologist , Volume 101 , Issue 1 , January 1969 , pp. 23 - 27
Copyright
Copyright © Entomological Society of Canada 1969

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