Entomology has played a part in the Academy of Natural Sciences since its founding in 1812. The department's collections currently contains more than 3,500,000 specimens of which more than 11,000 are primary types. An online collection of type specimens is available at clade.ansp.org/entomology/.

Current research in the department focuses on the the taxonomy, systematics, biogeography, and behavior of worldwide Orthoptera and Tipuloidea, and the survey of aquatic insects in Mongolia.

Written queries should be directed to:

Department of Entomology
Academy of Natural Sciences
1900 Benjamin Franklin Parkway
Philadelphia, PA 19103-1195

Titian Peale Butterfly and Moth Collection

The Peale Moth and Butterfly Collection of over 3000 specimens is one of the oldest and most scientifically valuable collections of North American insects in any natural history museum. The collection represents an unequaled historical and scientific resource for documenting the butterfly fauna of the world. The fauna of pre-industrial Philadelphia is particularly well represented. much of which was lost from the city environs as it grew in the last century and a half. In addition to its scientific importance, the Peale Collection is significant in the areas of U.S. history, art history and history of the natural sciences.

The collection is viewable online at clade.ansp.org/entomology/collections/peale/index.html.

Orthoptera Species File

Taxonomic information needs to be shared around the world, so that we can all learn about the species we live with. With the largest collection in the world of grasshoppers and crickets, the Academy's Entomology Department pioneered the placement of a catalog of all known species of a major group of insects on the Internet. The Orthoptera Species File provides direct access to data on one of the most economically important species - grasshoppers, perennially one of man's worst competitors for crops. The OSF contains complete taxonomic and synonomic information for all species and genera of Orthoptera, including text, images and sound recordings.