THE SPECIFIC CHARACTERS OF THE BRITISH HUMBLEBEES (HYMENOPTERA)
Published in Transactions of the Royal Entomological Society of London, in 1927, in volume 75, issue 2, pages 233-268
Date published:1927-12
Published in Transactions of the Royal Entomological Society of London, in 1927, in volume 75, issue 2, pages 233-268
Date published:1927-12