We provide brief descriptions of our holdings for the various insect orders. The groupings of orders into supraordinal categories follow recent classifications, such as that presented by Gullan & Cranston in The Insects: An Outline of Entomology. Under several orders you will find downloadable, PDF versions of databases listing information in specialized collections, such as those developed by various professors (J.G. Needham, O.A. Johannsen), or for insects held on slides (e.g. Phthiraptera).