


CREATONOTOS GANGIS (The hairy appendages are the everted coremata (male scent organs) used during courtship to release pheromones)
Noctuidae, Arctiinae, Arctiini ©Darren5907
Creatonotos gangis is a species of arctiid moth found in South East Asia and Australia. Adult males secrete the pheromone hydroxydanaidal in order to attract mates. The amount produced, and the size of the coremata (scent organs) which produce it, are however dependent on the diet that the moth experienced as a caterpillar. If the larval diet contained pyrrolizidine alkaloids, then the coremata become large and the male will release up to 400 micrograms (0.0062 gr) of hydroxydanaidal, but if it does not, then the coremata do not grow large and no scent is produced.
Fact Source: http://en.wikipedia.org/wiki/Creatonotos_gangis
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