Chemical evolution and chemosystematics of the Dufour’s gland secretions of the lactone-producing bees (Hymenoptera: Colletidae, Halictidae, Oxaeidae)

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith