Krueger S1, Moritz G1, Lindemann P2, Radisch D1, Tschuch G3.
J Chem Ecol. 2016 Apr;42(4):294-9. doi: 10.1007/s10886-016-0685-z. Epub 2016 Mar 23.Two dibasic esters, the dimethyl ester of hexanedioic acid (dimethyl adipate, DBE-6) and the dimethyl ester of pentanedioic acid (dimethyl glutarate, DBE-5) were found in head-thorax extracts of male Echinothrips americanus. DBE-5 induced abdomen wagging and raising in males and females, which is typically exhibited when encountering a male. DBE-6 was avoided by males and was detected on mated, but not on virgin, females. Both substances applied to virgin females lead to females being ignored by males. The role of both substances is discussed with regard to the male mating system.