To attract male insect pollinators some orchids will visually resemble the female, and can emit pheromones with the exact chemical composition of her scent!
Autumn Leek Orchids
"Orchids are universally acknowledged to rank among the most singular and most modified forms in the vegetable kingdom." - Charles Darwin
Giant Spider Orchid
The arousing scent emanating from the Slipper Orchid is irresistible to the appropriately named Orchid Dupe Wasp.
Whilst mating and depositing sperm into the flower, a bag of pollen is cleverly attached to its abdomen.
Carousel Spider Orchids
This little beasty got its wings stuck to the stigma while exploring the orchid. It has pulled the large calli upwards in the attempt to free itself. Still stuck 2 hours later.