62 proc. est. soc. wash., vol. 75, no. 1, march, 1973 References Elton, C. 1949. Population interspersion: An essay on animal community patterns. J. Ecol. 37:1-23. Craves. R. C. 1960. Ecological observations on the insects and other inhabitants of woody shelf fungi (Rasidiomycetes: Polyporaceae ) in the Chicago area. Ann. Kntomol. Soc. Am. 53:61-78. Lawrence, J. F. 1965. Comments on some recent changes in the classification of the Ciidae ( Coleoptera ) . Bull. Mus. Comp. Zool. Harv. 133(5) :175-193. . 1967a. Delimitation of the genus Ceracis (Coleoptera: Ciidae) with a revision of North American species. Bull. Mus. Comp. Zool. Harv. 136(6):91-143. -. 1967b. Biology of the parthenogenetic fungus beetle Cis fuscipes Mellie (Coleoptera: Ciidae). Breviora. 258:1-14. . 1971. Revision of the North American Ciidae (Coleoptera). Bull. Mus. Comp. Zool. Harv. 142:419-522. Paviour-Smith, K. 1960. The frui ting-bodies of macro-fungi as habitats for beetles of the family Ciidae (Coleoptera). Oikos. 11(1):43-71. Weiss, H. B. and E. West. 1920. Fungus insects and their hosts. Proc. Biol. Soc. Wash. 33:1-20. and . 1921. Additional fungus insects and their hosts. Proc. Biol. Soc. Wash. 34:59-62. FLORIDA MEALYBUGS OF THE GENUS RHIZOECUS WITH DESCRIPTION OF A NEW SPECIES ( HOMOPTERA : PSEUDOCOCCIDAE ) Edson J. Hambleton-, Collaborator, Agricultural Research Service, U. S. Department of Agriculture 1 ABSTRACT — Rhizoccus floririanus, a new hypogeic mealybug from Florida and Ceorgia is described and illustrated. Two taxa, Morrisonella spinipes Hambleton and RipersieUa simplex Hambleton are assigned to Rhizoecus. Ripersiella simplex, described originally from Brazil, is reported for the first time from the United States. A key to 8 Florida species is presented with data on host plants and distribution. This paper provides a name for an undeseribed mealybug, presents a key to the Florida species of Rhizoecus and includes notes on their identity, host plants and distribution. The genus Rhizoecus is 1 of 9 genera now recognized in the tribe Rhizoecini, as defined by Williams (1969). Of the 9, most of which ■Mail address: 5140 Worthiiigton Dr., Washington, D. C. 20016
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