PROC. ENTOMOL. SOC. WASH. 95(3), 1993, pp. 488-503 NOMENCLATURAL NOTES ON GENERA OF NORTH AMERICAN EULOPHIDAE (HYMENOPTERA: CHALCIDOIDEA) Michael E, Schauff and John LaSalle (MES) Systematic Entomology Laboratory, ARS, PSI, % U.S. National Museum, NHB 168, Washington, D.C. 20560; (JL) International Institute of Entomology, % Dept. of Entomology, The Natural History Museum, London SW7 5BD, UK. Abstract.— The systematic placement of the genera in the subfamilies Eulophinae and Euderinae of the Eulophidae (Hymenoptera: Chalcidoidea) of North America were re-viewed. Two new genera are described: Cristelacher and Dasyeulophus. Thirty genera are included in the Eulophinae and five in the Euderinae. Four new generic synonymies are proposed in the Eulophinae: Notanisomorpha Ashmead = Hemiptarsenus Thomson; Mi-rolynx Girault and Pseudolynx Girault = Aulogymnus Forster; Cirrospiloideus Ashmead = Elachertus Spinola. One new generic synonymy in the subfamily Entedoninae is pro-posed: Aabacharis Schauff = Eprhopalotus Girault. Nine genera are recorded from North America for the first time: Colpodypeus Lucchese, Cristelacher Schauff and LaSalle, Gen. n., Dasyeulophus Schauff and LaSalle, Gen. n., Deutereulophus Schulz, Diglyphomorpha Ashmead, Euplectromorpha Girault, Notanisomorphella Girault, Platyplectrus Ferriere, and Xanthellum Erdos & Nov. Thirty two new combinations are proposed and a lectotype is designated for Cirrospiloideus playnotae. A table of the genera of North American Eulophinae, with their current placement is given. Key Words: Taxonomy, nomenclature, Eulophidae, Eulophinae, Euderinae, North America There have been numerous changes in ge-genera of North American Eulophidae re-neric limits and placements in the family fleets the most recent research findings on Eulophidae since the publication of the most this group, recent catalog for North America (Burks 1979). Two subfamilies have been or are Classification of Eulophidae beingrevised(Entedoninaeby Schauff 1991, The scheme of higher relationships fol-Tetrastichinae by LaSalle, in press), and lowed here differs from that used by Burks several genera have been moved from pre-(1979) (see Table 1). Burks recognized three viously assigned subfamilies and tribes to subfamilies: Eulophinae, Entedoninae (as new placements within the family. Joint Entedontinae), and Elasminae. His overall work by the authors uncovered a number concept of the subfamily Eulophinae is es-of new problems with generic limits and sentially the same as the one we are using, placements in the two remaining subfami-He included three tribes: Eulophini, Ela-lies. Eulophinae and Euderinae as well as chertini and Euplectrini; we include the Eu-several genera not previously recorded from lophini and Euplectrini, and consider the North America. It is necessary to publish Elachertini is belonging in the Eulophini (see these changes so that an upcoming key to discussion below).