PROC. ENTOMOL. SOC. WASH. 87(2), 1985, pp. 329-334 CLASTRIEROMYIA, A NEW NEOTROPICAL GENUS OF PREDACEOUS MIDGES RELATED TO PALPOMYIA AND BEZZIA (DIPTERA: CERATOPOGONIDAE) Gustavo R. Spinelli and William L. Grogan, Jr. (GRS) Instituto de Limnologia "Dr. Raul A. Ringuelet," Casilla de Correo 55, 1923, Berisso, Republica Argentina; (WLG) Department of Biological Sciences, Salisbury State College, Salisbury, Maryland 21801, Research Collaborator, De-partment of Entomology, Smithsonian Institution, Washington, D.C. 20560. Abstract— Clastrieromyia, a new neotropical genus of predaceous midges re-lated to Palpomyia and Bezzia is described and illustrated from female specimens. Males and immature stages are unknown. This new genus includes two new species, schnacki from Ecuador as type-species, and kremeri from Brazil. All of the genera of the predaceous midge tribe Palpomyiini inhabiting North and South America have recently been reviewed: Dow and Turner (1976), Wirth (1983a, 1983b), Wirth and Grogan (1983), and Wirth et al. (1984) on Bezzia; Grogan and Wirth ( 1 979) on Palpomyia; Grogan and Wirth ( 1 980) on Pachyhelea; Wirth and Grogan (1982) on Phaenobezzia; and a new genus, Amerohelea. was recently described by Grogan and Wirth (1981). In addition, the senior author and Willis W. Wirth have nearly completed a review of the neotropical Bezzia and the present authors are engaged in a study of the neotropical Palpomyia. During the present study of the neotropical Bezzia and Palpomyia in the col-lection of the National Museum of Natural History, Washington, D.C, we en-countered two undescribed species from Ecuador and Brazil that cannot be placed in any of the ceratopogonid genera in the tribe Palpomyiini. Because they possess a combination of characters and some new characters not present in any of the other Palpomyiini genera we propose a new genus for them in this paper. For an explanation of general ceratopogonid terminology see Downes and Wirth (1981); for special terms dealing with genera in the tribe Palpomyiini, see Grogan and Wirth (1979, 1981). The holotypes of the two new species are deposited in the collection of the National Museum of Natural History (USNM), in Washington, D.C. Paratypes will be deposited in the Canadian National Collection, Ottawa; British Museum (Natural History), London; Museum National d'Histoire Naturelle, Paris; Museo de La Plata, La Plata, Argentina; the Museu de Zoologia da Universidade de Sao Paulo, Brazil; the California Academy of Science, San Francisco; and the Florida Collection of Arthropods, Gainesville. We thank Willis W. Wirth of the Systematic Entomology Laboratory, Agri-cultural Research Service, USDA. and Wayne N. Mathis of the Department of Entomology, Smithsonian Institution, for the opportunity to study the collections
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