The scent glands and their chemicals in the aposematic cotton harlequin bug, tectocoris-diophthalmus (Heteroptera: Scutelleridae)

Staddon B.W., Thorne M.J. and Knight D.W. (1987) The scent glands and their chemicals in the aposematic cotton harlequin bug, tectocoris-diophthalmus (Heteroptera: Scutelleridae). Australian Journal of Zoology, 35 3: 227-234. doi:10.1071/ZO9870227


Author Staddon B.W.
Thorne M.J.
Knight D.W.
Title The scent glands and their chemicals in the aposematic cotton harlequin bug, tectocoris-diophthalmus (Heteroptera: Scutelleridae)
Journal name Australian Journal of Zoology   Check publisher's open access policy
ISSN 1446-5698
Publication date 1987-01-01
Sub-type Article (original research)
DOI 10.1071/ZO9870227
Open Access Status Not yet assessed
Volume 35
Issue 3
Start page 227
End page 234
Total pages 8
Language eng
Subject 1105 Ecology, Evolution, Behavior and Systematics
1103 Animal Science and Zoology
Abstract In describing differences in morphology, developmental fate and secretion composition in the scent glands of the cotton harlequin bug Tectocoris diophthalmus we have sought to extend comparative knowledge of the scent gland system in the pentatomoid families within the Hemiptera-Heteroptera. Chemical investigation of the secretions was undertaken by coupled gas chromatography-mass spectrometry (GC-MS). The following volatiles were detected: 2-hexenal, 2-hexenyl acetate and 2- octenyl acetate from the metathoracic scent gland (an adult gland); nonanal from the abdominal dorsal first gland (the divided dorsal gland) in the adults; 2-hexenal, 2-octenal, 4-oxohex-2-enal, dodecane and tridecane from the abdominal dorsal second and third glands (the undivided dorsal glands) in fifth-instar nymphs. Secretory units are sparse, opener muscles absent, and secretion scarcely, if at all, present in the second and third dorsal abdominal scent glands in the adults. T. diophthalmus is an addition to the small but growing list of pentatomoids in which biochemical divergence of the abdominal dorsal first gland from the abdominal dorsal second and third glands has been reported. The metathoracic scent gland in T. diophthalmus is comparatively small, as it is in many other aposematic species within the Hemiptera-Heteroptera.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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