Many aquatic taxa were obtained from J.W. Leonard and personnel associated with the UMMZ's Fish Division. The Museum holds a large collection of Cicadidae, largely North American, but all world-wide subfamilies represented, with associated sound recordings, through the efforts of T.E. Moore and R.D. Alexander. Coverage of other groups is moderate in size and largely North American in scope. Extensive collections of lice from both birds and mammals are held. Coverage is largely North American, with additional significant collections from Egypt, Madagascar, the Philippines and Paraguay.
Most specimens remain unidentified and in fluid, but with full host data.
Early collections were accumulated by Norman Wood of the museum's Bird Division in the 1920's, with OConnor adding most recent material. Most of the latter collections are vouchered with the hosts' museum catalogue numbers. A synoptic collection of Psocoptera from the E.S. George Reserve is identified. Some other collections from North America are present. Collections of Thysanoptera, Zoraptera and Embioptera are small.