Chemical analysis of oxygenated homosesquiterpenes:A putative sex pheromone from Lutzomyia lichyi (Diptera: Psychodidae)

Hamilton, J. G.C. and Brazil, R. P. and Morgan, E. D. and Alexander, B. (1999) Chemical analysis of oxygenated homosesquiterpenes:A putative sex pheromone from Lutzomyia lichyi (Diptera: Psychodidae). Bulletin of Entomological Research, 89 (2). pp. 139-145. ISSN 0007-4853

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Abstract

Lutzomyia lichyi (Floch and Abbonenc) is a suggested secondary vector of Leishmania in Colombia. Taxonomically, L. lichyi is very closely related to the L. longipalpis (Lutz and Neiva) species complex. Male members of the complex can be distinguished by their sex pheromones which are produced in papules found grouped together in pale patches on tergites 3 or tergites 3 and 4. Male L. lichyi also have papules, very similar in appearance to those of the L. longipalpis species complex but distributed on tergites 4, 5, 6 and 7. Chemical analysis of male L. lichyi hexane extracts has revealed the presence of two novel oxygenated methylsesquiterpenes. The two major oxygenated terpenes found in the extract of L. lichyi males are tentatively characterized as a primary and tertiary alcohol. The mass spectrum of the proposed primary alcohol is very similar to the published mass spectrum of 3-methyl-α-himachalene, the sex pheromone produced by the Jacobina chemotype of the L. longipalpis complex. The mass spectrum of the proposed tertiary alcohol also has similarities to the 3-methyl-α-himachalene sex pheromone.

Item Type: Journal Article
Journal or Publication Title: Bulletin of Entomological Research
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/1100/1109
Subjects:
Departments: Faculty of Health and Medicine > Biomedical & Life Sciences
ID Code: 137201
Deposited By: ep_importer_pure
Deposited On: 30 Sep 2019 22:20
Refereed?: Yes
Published?: Published
Last Modified: 07 Jan 2020 07:02
URI: https://eprints.lancs.ac.uk/id/eprint/137201

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