Biological species problems in some Tetramesa (Hymenoptera, Eurytomidae)
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TL;DR
Using horizontal starch gel electrophoresis, ten enzyme systems were surveyed in ten populations of Tetramesa reared from eight species of grass collected from different sites in Britain, and electrophoretic results for populations of T. hyalipennis and T. eximia were supported.
Abstract
Using horizontal starch gel electrophoresis, ten enzyme systems were surveyed in ten populations of Tetramesa reared from eight species of grass collected from different sites in Britain. Eight species of Tetramesa were recognized on the basis of the number and relative mobilities of electromorph bands for larvae, pupae and adults. No differences were found between populations of T. hyalipennis (Walk.) reared from Elymus repens (L.) and E.farctus (Viv.) or between populations of T. eximia (Gir.) reared from Calamagrostis epigejos (L.) Roth and Ammophila arenaria (L.) Link. Experiments on mate-choice and host preference also supported the electrophoretic results for populations of T. hyalipennis and T. eximia.