The Wedge Entomological Research Foundation (WERF) is a non- profit organization dedicated to producing taxonomic monographs on the moth fauna of the Nearctic Region.

The Wedge Entomological Research Foundation, Inc. was founded to promote publications and disseminate information primarily regarding moths of North America. Its flagship publication is the Moths of North America (MONA) series.

A photographic history of Curwen Press and the Wedge Plantation has been added. Click here to find out more about the early history of WERF.

Read the Foundation’s position on the Biodiversity Crisis, Charitable Giving, and Estate Gifting.

The Wedge Entomological Research Foundation is pleased to announce the availability of a grant designed to assist authors with completing work leading to a publication of a MONA fascicle. Read more here: MONA development grants.

We have recently made high-quality PDFs of ALL VOLUMES available for free download! Hard copies of most volumes are still available for purchase. Visit the publications page.