Canadian Forest Service Publications
Incidence of spicules on the aedeagi of Choristoneura fumiferana, C. biennis, C. unidentified species (Lepidoptera: tortricidae) 1995. Gray, T.G.; Shepherd, R.F.; Harvey, G.T. The Canadian Entomologist 127: 161-166.
Issued by: Pacific Forestry Centre
Catalog ID: 4062
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Adults of Choristoneura fumiferana, C. biennis and an unidentified species reared from larvae or caught in pheromone traps from British Columbia were used for isozyme analysis to confirm the species identity and, for morphological study, to determine the percentage of individuals with spiculate aedeagi. About 82% of C. fumiferana and less than 3% of both C. biennis and C. unidentified species (CPG) have spicules on the left side of their aedeagi. The number of moths that need to be sampled to determine a species is presented, based on the presence or absence of spicules.