Ultrastructural investigations of the elongated male club, antennomere 6, in Aphytis melinus DeBach have shown that a small oval ventral area, bearing numerous minute setae, is not a sensory complex but rather the release site of a glandular complex with unicellular unit type 1. This finding, combined with behavioral observations reported in the literature, strongly indicates that the secretion induces sex recognition during pre-coital phase. This morpho-functional interpretation is discussed in other aphelinids exhibiting similar structures on different antennomeres.
Further evidence of male antennal glands in Aphelinidae: the case of Aphytis melinus DeBach (Hymenoptera: Aphelinidae
ROMANI, Roberto;ISIDORO, Nunzio;BIN, Ferdinando
1999
Abstract
Ultrastructural investigations of the elongated male club, antennomere 6, in Aphytis melinus DeBach have shown that a small oval ventral area, bearing numerous minute setae, is not a sensory complex but rather the release site of a glandular complex with unicellular unit type 1. This finding, combined with behavioral observations reported in the literature, strongly indicates that the secretion induces sex recognition during pre-coital phase. This morpho-functional interpretation is discussed in other aphelinids exhibiting similar structures on different antennomeres.File in questo prodotto:
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