We would like to express our sincere gratitude to Hamid Lagha for designing the new Forum Herbulot website and to Amir M. Javadi for creating the new Forum Herbulot logo. We are especially grateful to the IT staff at SMNS, and in particular to Melvin Walbaum, for his exceptional patience, continuous support, and technical assistance throughout the development process. We also thank Saeed Safarpoor and Sajad Noori for his support and IT valuable advices. 

We thank the Australian National Insect Collection (ANIC), Canberra, for granting permission and providing the opportunity in 2014 to photograph the entire available collection of Australian Geometridae for this project. 

We warmly acknowledge Andreas Manz, Donald Hobern, Steve Nanz, Franz Pühringer, Hugh McGuinness, Stuart Longhorn, Sven Wiessner, Tanner Matson, Roger C. Kendrick, and Nancy van der Poorten for drawing our attention to numerous errors and several overlooked taxa during preparation of the first edition of this work. Their insightful comments and recommendations significantly enhanced the completeness of the database, and all corresponding taxa and records have now been incorporated into the present version. 

We also sincerely thank the many members of Forum Herbulot who generously shared their recent publications with us. Their contributions greatly facilitated the updating, refinement, and continuous improvement of the database.

Funding

The development of the early version of this website, as well as the creation of the new Forum Herbulot logo, was financially supported by several Herbulotians (listed alphabetically): Brehm, G., Can, F., Hausmann, A., László, G., Rajaei, H., Sihvonen, P., Scoble, M., Skou, P., Staude, H., Sommerer, M., Stüning, D. and Tautel C. 

The design and programming costs of the current version of this website were financially supported by the Thuringer Entomologenverband.