The trail pheromone of the ant Tetramorium caespitum L. is a 70:30 mixture of 2,5-dimethylpyrazine and 3-ethyl-2, 5-dimethylpyrazine. The average total amount of the two pyrazines present in the poison vesicle was found to be 3.9 ng per ant, of which 2.7 ± 0.4 ng is 2,5-dimethylpyrazine and 1.15 ±0.25 ng is 3-ethyl-2,5-dimethylpyrazine. The pyrazines constitute only 0.03% of the volume of the poison vesicle but account for the whole of the trail-following activity. A 70:30 mixture of the respective pyrazines evoked the highest activity in artificial trail-following tests. © 1984 Plenum Publishing Corporation.
CITATION STYLE
Attygalle, A. B., & Morgan, E. D. (1984). Identification of trail pheromone of the ant Tetramorium caespitum L. (Hymenoptera: Myrmicinae). Journal of Chemical Ecology, 10(10), 1453–1468. https://doi.org/10.1007/BF00990315
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