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Preliminary Report on Pterergates in Pogonomyrmex Californicus

Shapley, Harlow (1920) Preliminary Report on Pterergates in Pogonomyrmex Californicus. Proceedings of the National Academy of Sciences of the United States of America, 6 (12). pp. 687-690. ISSN 0027-8424.

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The phylogeny of castes among social insects has a recognized importance in the question of development of organic forms through continuous or saltatory variation. For the Formicidae the castes are already well established in the early Tertiary, among the first fossil records of these insects, although in the primitive ancestral wasps neither the social habit nor the polymorphism of the female appears. Differentiation into soldier, worker, and fertile forms is also a long-standing condition with the termites, probably dating from the Cretaceous.

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Additional Information:Copyright © 1920 National Academy of Sciences. Communicated by William Morton Wheeler, November 6, 1920.
Issue or Number:12
Record Number:CaltechAUTHORS:20141121-161539420
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Official Citation:Harlow Shapley Preliminary Report on Pterergates in Pogonomyrmex Californicus PNAS 1920 6 (12) 687-690
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:52071
Deposited By: George Porter
Deposited On:24 Nov 2014 15:22
Last Modified:03 Oct 2019 07:39

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