Eur. J. Entomol. 95 (2): 307-310, 1998
Evolutionary origin of squamiform microsculpture on the forewing-holding devices (frenae) in Heteroptera
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Frenae are forewing-holding ridges situated in the Heteroptera parallel to the lateral sides of mesoscutellum, and covered by a squamiform, overlapping, glabrous microsculpture. The situation found in Rectilamina sp. (Dipsocoromorpha: Schizopteridae: Hypselosomatinae) suggests that each single squamiform element is homologous to a strongly modified microtrichium, and that, at least in this case, there is no basic difference between microtrichium and acanthus.
Keywords: Heteroptera, Enicocephalomorpha, Dipsocoromorpha, Schizopteridae, Rectilamina, morphology, microsculpture, frenae, microtrichia, acanthae
Accepted: October 14, 1997; Published: May 20, 1998 Show citation
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