Abstract
Summary
(1) The free amino acids of mosquito eggs, larvae (4th-stage), pupae and adults (males and females) were extracted with ethanol and identified by paper chromatography. The following amino acids were found in the various stages studied: alanine, glutamic acid, β-alanine, isoleucine, leucine, taurine, proline, histidine, serine, valine, methionine, threonine, lysine, arginine, aspar-tic acid, glycine, tyrosine, and tryptophan. (2) Extracts of pupae contained lower concentrations of most amino acids than the other stages, with the greatest drop occurring shortly before emergence of the adults. Other quantitative variations from one stage to another involved only 2 or 3 amino acids.
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