9(Z)-Pentacosene

9(Z)-Pentacosene is a cuticular hydrocarbon and insect sex hormone.{42524,42525,42526} It is found in the cuticle of female F. canicularis flies and is an attractant to males in a trap assay.{42524} 9(Z)-Pentacosene is a contact sex hormone in scarab beetles and locust borers that is more abundant in females than males.{42525,42526} It elicits arrestment, alignment, and mounting by males of both species in mating assays but only elicits copulation by the locust borer. 9(Z)-Pentacosene is also produced by the orchid O. exaltata and by C. cunicularius, a pollinator of O. exaltata.{42527}