Volume XII will deal with the PSYCHIDAE OF THE PALEARCTIC REGION in two parts. Part 1 by Wilfried R. Arnscheid contains the Placodominae, Typhoniinae (partim) and Oiketicinae. Part 2, which Michael Weidlich is currently working on, will deal with the Typhoniinae (partim), Eumasiinae, Taleporiinae and Psychinae and is expected to be published in 2026 to complete this monograph. We are proud to present this outstanding work in our series!