Abdominal gland Aggregation pheromones Alarm cue Alarm pheromones Allomones Attractants Brain Brood pheromones Contact sex pheromones Copulation release pheromones Cuticle Defense substances Dorsal gland Eggs Epilithic lichens extracts Epiphytic lichens extracts Extracts Femoral gland Fish oil Harderian gland Headspace volatile Kairomones Lipid extractions Marking pheromones Migratory pheromones Mollusk Oviposition aggregation pheromones Parotoid gland Parotoid macrogland Pigments Postovulatory prostaglandin pheromones Preovulatory steroid pheromones Primer pheromones Recognition pheromones Recruitment pheromones Releaser sex pheromones Repellents Retinue pheromones Sex pheromones Silk Skin extracts Skin glands Skin lipids Sperm-release pheromone Steroids Synomones Terrestrial lichens extracts Tibial gland Trail pheromones Venoms Warning odor Wings