Eur. J. Entomol. 91 (1): 97-101, 1994
Possible sound producing structures present in some Macrosiphini (Homoptera: Aphididae)
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Some aphid species of the tribe Macrosiphini possess a row of peg-like hairs on the hind tibiae, which resemble the plectrum of the sound producing apparatus in Toxoptera (tribe Aphidini). In addition to the three earlier recorded cases in the genus Macrosiphoniella (M. jaroslavi Szelegiewicz, M. myohyangsani Szelegiewicz, M. spinipes Basu) and Macrosiphum (Sitobion) gravelii van der Goot, these hind tibial pegs were found in Macrosiphoniella millefolii (DeGeer) and 10 species of the genus Uroleucon. In the Aphidini the plectrum is a transformed posterior row of hairs (rastral setae), whereas in Macrosiphini it is a posteroventral row of hairs. If in the latter it forms part of a sound producing apparatus, then the only available structure which might function as the file (strigil) is the reticulate zone at the apices of the siphunculi.
Keywords: Aphids, Macrosiphini, sound production, siphunculi
Accepted: February 10, 1994; Published: April 15, 1994 Show citation
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