Khtan55

Attractant

Please read and follow Help:Referencing for beginners and then correct the references you added to Attractant - Thanks - Arjayay (talk) 09:10, 7 April 2018 (UTC)

An attractant is any chemical that attracts an organism. Therefore, it is not a subclass of synomone (please see below).

For clarification, classification of semiochemicals is entirely based on an organism's behaviour towards a chemical depending on intra-specific and inter-specific interactions. Pheromones are intra-specific chemicals affecting individuals within the same species e.g. aggregation pheromone, 'lek' pheromone, sex pheromone (all are attractants); and Inter-specific chenucals:

                        i) synomone (e.g. floral synomone) where the releaser attracts individuals of another species (receiver) both gain benefits;
                       ii) allomone  where the releaser gains benefit with detrimental effect(s) to the receiver;
                      iii) kairomone where the receiver gains benefit with detrimental effect(s) to the releaser (e.g. fruit kairomone attracts female fruit flies to oviposit eggs on the releser (fruit); and
                       iv) apneumone where dead material or micro-organisms release chemical(s) to attract other organism (e.g. bacteria infection of a leaf of Proiphys amboinensis attracted Dacini fruit flies via releasing methyl eugenol.

Reference: Tan K.H. and Nishida R. (2012) Methyl eugenol – its occurrence, distribution, and role in nature, especially in relation to insect behavior and pollination. Journal of Insect Science 12:56 available online: insectscience.org/12.56. https://doi.org/10.1673/031.012.5601 or https://europepmc.org/article/PMC/3500151