A NEW ANAGRUS (HYMENOPTERA, MYMARIDAE), EGG PARASITOID OF PROKELISIA SPP (HOMOPTERA, DELPHACIDAE)

Anagrus sophiae S. Trjapitzin, NEW SPECIES, is described and illustrat ed on the basis of a type-series from California and Florida. This spe cies is a common egg parasitoid of the planthopper Prokelisia marginat a (Van Duzee) that feeds on salt marsh cordgrass, Spartina alterniflor a Loisel, in salt marshes along the Atlantic, Gulf, and Pacific Coasts of the United States, and S. foliosa Trinius on the Pacific Coast. Th e new species also parasitizes eggs of P. dolus Wilson in Florida. Dif ferences in the biology as well as variability of some morphological c haracters of A. sophiae are discussed based on a comparative study of the two populations from California and Florida. The new species is co mpared with A. delicatus Dozier.