Journal of Chemical Ecology

, Volume 16, Issue 10, pp 2981–2992 | Cite as

Identification of sex pheromones of two sibling species in dingy cutworm complex,Feltia jaculifera (GN.) (Lepidoptera: Noctuidae)

  • J. R. Byers
  • D. L. Struble


The sex pheromone components of the two sibling species of the dingy cutworm that occur on the prairies of western Canada were identified in abdomen-tip extracts from calling female moths. Three monounsaturated acetates, (Z)-7-dodecenyl acetate, (Z)-9-tetradecenyl acetate, and (Z)-11-hexadecenyl acetate, are common to both species in ratios of 100∶13∶3 for species A and 0.3∶0.5∶100 for species B. The most effective synthetic blends for the attraction of male moths in the field consisted of these three components in ratios of 10∶1∶0 at 8.8Μg/lure for species A and 1∶1∶2000 at 500Μg/lure for species B. The addition of Z5-12∶Ac to either blend reduced the catches and the addition of Z7-12∶OH orZ11-16∶OH to the three-component blend reduced the catches of species B males. The species are morphologically indistinguishable, but the identity of the males attracted to the synthetic blends could be confirmed by their antennal responses to a test blend of the three components using a GC-EAD system. Both synthetic attractant blends are competitive with females and will be useful for studying the distribution, biology, and relative abundances of the two species.

Key Words

Feltia jaculifera Feltia ducens dingy cutworm Lepidoptera Noctuidae sex pheromone pheromone polymorphism pheromonal phenotypes sibling species (Z)-7-dodecenyl acetate (Z)-9-tetradecenyl acetate (Z)-11-hexadecenyl acetate 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Byers, J.R., Struble, D.L., Herle, C.E., Kozub, G.C., andLafontaine, D.L. 1990. Electroantennographic responses differentiate sibling species in the dingy cutworm complex,Feltia jaculifera (Gn.) (Lepidoptera: Noctuidae).J. Chem. Ecol. 16:2969–2980.Google Scholar
  2. Grob, K., Grob, G., andGrob, K., Jr. 1977. The barium carbonate procedure for the preparation of glass capillary columns; further informations and developments.Chromatographia 10:181–187.Google Scholar
  3. Hinks, C.F., andByers, J.R. 1976. Biosystematics of the genusEuxoa (Lepidoptera: Noctuidae). V. Rearing procedures, and life cycles of 36 species.Can. Entomol. 108:1345–1357.Google Scholar
  4. Houx, N.W.H., Voerman, S., andJongen, W.M.F. 1974. Purification and analysis of synthetic insect sex attractants by liquid chromatography on a silver-loaded resin.J. Chromatogr. 96:25–32.PubMedGoogle Scholar
  5. Steck, W., Underhill, E.W., andChisholm, M.D. 1982. Structure-activity relationships in sex attractants for North American noctuid moths.J. Chem. Ecol. 8:731–754.Google Scholar
  6. Steck, W.F., Underhill, E.W., andPalaniswamy, P. 1986. Sex pheromone of the cutwormFeltia jaculifera (Lepidoptera: Noctuidae).Environ. Entomol. 15:40–43.Google Scholar
  7. Struble, D.L. 1983. Pheromone traps for monitoring moth (Lepidoptera) abundances: Evaluation of cone-orifice and omni-directional designs.Can. Entomol. 115:59–65.Google Scholar
  8. Struble, D.L., andArn, H. 1984. Combined gas chromatography and electroantennogram recording of insect olfactory responses, pp. 161–178,in H.E. Hummel and T.A. Miller (eds.). Techniques in Pheromone Research. Springer-Verlag, New York.Google Scholar
  9. Struble, D.L., andByers, J.R. 1987. Identification of sex pheromone components of darksided cutworm,Euxoa messoria, and modification of sex attractant blend for adult males.J. Chem. Ecol. 13:1187–1199.Google Scholar
  10. Struble, D.L., andSwailes, G.E., 1977. Sex attractant for clover cutworm,Scotogramma trifolii: Field tests with various ratios of (Z)-11-hexadecen-1-yl acetate and (Z)-11-hexadecen-1-ol, and with various quantities of attractant on two types of carriers.Can. Entomol. 109:369–373.Google Scholar
  11. Struble, D.L., andSwailes, G.E. 1978. A sex attractant for adult males of the pale western cutworm,Agrotis orthogonia (Lepidoptera: Noctuidae).Can. Entomol. 110:769–773.Google Scholar
  12. Struble, D.L., Buser, H.R., Arn, H., andSwailes, G.E. 1980. Identification of sex pheromone of redbacked cutworm,Euxoa ochrogaster, and modification of sex attractant blend for adult males.J. Chem. Ecol. 6:573–584.Google Scholar
  13. Underhill, E.W., Chisholm, M.D., andSteck, W. 1977. Olefinic aldehydes as constituents of sex attractants for noctuid moths.Environ. Entomol. 6:333–337.Google Scholar

Copyright information

© Plenum Publishing Corporation 1990

Authors and Affiliations

  • J. R. Byers
    • 1
  • D. L. Struble
    • 1
  1. 1.Agriculture Canada Research StationLethbridgeCanada

Personalised recommendations