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Environ Entomol. 2017 Dec 8;46(6):1374-1380. doi: 10.1093/ee/nvx164.

Gland Origin and Electroantennogram Activity of Volatile Compounds in Ghost Ants, Tapinoma melanocephalum (Hymenoptera: Formicidae) and Behavioral Response to (Z)-9-Nonadecene.

Shi Q1,2, Lu L2, Lei Y2, He Y1, Chen J3.

Author information

1
Department of Entomology, College of Agriculture, South China Agricultural University, China.
2
Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, China.
3
National Biological Control Laboratory, Southeast Area, Agriculture Research Service, United States Department of Agriculture, Stoneville, MS 38776.

Abstract

Volatile compounds in Tapinoma melanocephalum (Fabricius) (Hymenoptera: Formicidae, Dolichoderinae) workers were analyzed using gas chromatography-mass spectrometry and electroantennogram responses of workers to these compounds were investigated using coupled gas chromatography-electroantennographic detection. Among 18 detected compounds, six elicited electroantennogram response, including 6-methyl-5-hepten-2-one, 4 iridodials, and (Z)-9-nonadecene. (Z)-9-Nonadecene and iridodials were identified the first time in T. melanocephalum. (Z)-9-Nonadecene is a major component in mandibular glands and iridodials are produced in pygidial glands. In contrast to previous report, actinidine was not found in pygidial glands. Behavioral response of workers to the synthetic (Z)-9-nonadecene was investigated. (Z)-9-nonadecene is an attractant to T. melanocephalum. It also affected their locomotion patterns.

KEYWORDS:

attractant; glandular secretion; iridodials; locomotion pattern

PMID:
29099928
DOI:
10.1093/ee/nvx164
[Indexed for MEDLINE]

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