Live specimen data from The Academy of Natural Sciences Entomology Collection. Established in 1812, the Entomology Department's collections hold approximately four million insect specimens, of which more than 11,000 are primary types. Current research in the Entomology Department focuses on the taxonomy, systematics, biogeography, and behavior of worldwide Orthoptera and Tipuloidea, and the survey of aquatic insects of Mongolia. An index of the nearly 100,000 species in the collection can be found here.