PROC. ENTOMOL. SOC. WASH. 83(1). 1981, pp. 105-128 REVISION OF THE GENUS FRENCHIA WITH DESCRIPTION OF A NEW SPECIES (HOMOPTERA: COCCOIDEA: ASTEROLECANIIDAE) Paris L. Lambdin and Michael Kosztarab (PLL) Associate Professor, Department of Entomology and Plant Pa-thology, The University of Tennessee, Knoxville, Tennessee 73901; (MK) Professor, Department of Entomology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061. Abstract. — The genus Frenchia is redescribed, and its taxonomic status is discussed. The immature and adult female stages of a new species, F. banksiae, are described and illustrated. Also, redescriptions and illustrations (Ere provided for F. casuarinae Maskell and F. semiocculta Maskell. Nu-i merical data on the external morphological structures of each stage are given, and keys are provided for determination of the three species in each stage. Plant galls and other malformations produced by each species are illustrated and described, and the economic importance of each species is discussed. Species of Frenchia occur only in the Australian Region, and are ! considered to form a distinct branch of the family Asterolecaniidae. The genus Frenchia was erected by Maskell (1892) to include the species |F. casuarinae, a gall-forming coccoid from Australia. Later, Maskell ( 1895) included a second species, F. semiocculta, in the genus. Froggatt (1898, 1921, 1933) provided additional data on gall formation, hosts, and distribu-tion for both species. Morrison and Morrison (1922, 1927) redescribed both species but stated that they were unable to see several morphological char-acters of the various instars because of the poor quality of the slide-mounted material. It is for this reason and for the interesting new species recently [recognized in a shipment from Australia, that we are revising this genus. Morphological descriptions and illustrations have been prepared for all available stages of the three Frenchia species to show relationships. Keys to the adult females and first-and second-instar females are presented to assist with species determination. Measurements are given in microns; av-erages are followed by ranges in paranthesis. Abbreviations for the names of institutions from which material was obtained or is deposited are: Aus-tralian National Insect Collection, Canberra, Australia (ANIC); British Mu-
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