Abstract
A key to Trisetacus includes T. grossmanni , which damages Sitka spruce in Germany, and the three previously known species. Aceria fagerinia , from Pennsylvania, yellow erineum on beech. JOHNELLA includes J. virginiana from Virginia and J. chrysolepis from California, both found on oaks. New species from Maryland are: Cecidophyes lyrata , a leaf vagrant on Quercus lyrata; Aculus copallina , on Rhus copallina; Phyllocoptes sassafrasella , on sassafras; Epitrimerus virginiana , on Prunus virginiana; and Diptacus fragarifoliae , on wild strawberry; from Virginia, Rhyncaphytoptus rubrifoliae and Diptacus rubra , both on Quercus rubra; and from California, Epitrimerus demissae , on Prunus demissa . A key is given to separate Cecidophyes and four related genera. ANOTHOPODA , type A. johnstoni , from Australia, redefines the subfamily Nothopodinae.
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