HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Kumm, H. W. Search for Related Content PubMed Articles by Kumm, H. W.

The Eggs of Some Costa Rican Anophelines¹

The eggs of nine of the commoner Costa Rican anophelines were studied. Four had been known previously from reports published from other countries. The remaining five species, the eggs of which are here described for the first time, include Anopheles anomalophyllus, A. apicimacula, A. neomaculipalpus, A. punctimacula and A. vestitipennis. About thirty photomicrographs were taken of dorsal, lateral and ventral views of ova and nearly fourteen hundred eggs were measured. The longest eggs were those of A. neomaculipalpus and A. vestitipennis, the shortest those of A. strodei. There was no evidence that the eggs of A. albimanus laid at the beginning of the dry season were any larger than those deposited during the preceding rainy months. Variations were found in the ova secured from A. punctimacula and A. vestitipennis. Such variations occurred at times in a batch of eggs laid by a single female mosquito. The real significance of the different types of eggs laid by apparently identical female anophelines is not yet clear, though it is possible that these variations may be seasonal like the A. walkeri observed by Hurlbut.

¹ The studies and observations on which this paper is based were conducted with the support and under the auspices of the International Health Division of The Rockefeller Foundation and the Secretaria de Salubridad Publica y Protección Social of the Government of Costa Rica.

Read at the Thirty-Sixth Annual Meeting of the American Society of Tropical Medicine, Joint Meeting with National Malaria Committee, Louisville, Kentucky, November 14, 1940.