This series started off being published by Harley Books before being transferred to Apollo Books in Denmark, and has now moved to Brill. Although originally projected as a series of 11 volumes, Brill has confirmed that volume 11 has been cancelled. Volumes 6 and 8 are still in preparation, and the remaining volumes have been published, some of which have been issued in several parts.
"[...] promised, from its first volume, to do for these insects what Bannerman and Witherby had done for British birds [...] it is clear from the three volumes that I have seen that this is indeed a series unlikely to be superseded for many years.'"
- Anthony Wootton, BBC Wildlife