Raphidioptera and Neuroptera from the Hanford site of southcentral Washington State

Information is presented concerning the species composition and seasonal ap pearance of Raphidioptera (snakeflies) and Neuroptera (lacewings and antlio ns) at the Hanford Nuclear Site located in southcentral Washington State. T he Hanford Site represents one of the largest undisturbed remnants of a shr ub-steppe habitat in the western United States and includes extensive Holoc ene and Recent sand dunes. A single snakefly [Raphidia bicolor Albarda] and 26 species of lacewings and antlions were collected during the period 1994 -1997. New distribution records for Washington are: Eremochrysa tibialis Ba nks (Chrysopidae); Sympherobius arizonicus Banks (Hemerobiidae); and Clathr oneuria schwarzi (Currie), Brachynemurus sackeni Hagen, Psammoleon sinuatus Currie, Scotoleon nigrilabris (Hagen), and S. peregrinus (Hagen) (Myr mele ontidae).