REVIEW OF THE FAMILY IBALIIDAE (HYMENOPTERA, CYNIPOIDEA) WITH KEYS TOGENERA AND SPECIES OF THE WORLD

The archaic cynipoid family Ibaliidae is revised. All described taxa a rea included in a checklist, and keys to valid taxa are presented. Hos t records include larvae of several woodwasp species (Siricidae: Siric inae and Tremicinae). Ibaliidae is considered to include the East Asia n genus Heteribalia Sakagami, with five valid species, and the mainly Holarctic genus Ibalia Latreille, with 13 valid species, seven in the subgenus Ibalia and six in the subgenus Tremibalia. Heteribalia aureop ilosa Maa, 1949 and H. subtilis Maa, 1949 are raised from subspecies t o species level. Ibalia (T.) hunanica sp. n., is described from Orient al China. Three morphs of I. (T.) anceps, differing in wing colour pat tern, are recognized, and distribution records of these morphs in Nort h America are mapped. I. scalpellator Westwood, 1837 is synonymized wi th I. anceps Say, 1824; I. takachihoi Yasumatsu, 1937 with I. jakowlew i Jacobson, 1899; I. fulviceras Yang, 1991 with I. ornata Belizin, 196 8; and I. yunshae Yang et Liu, 1992 with I. rufipes drewseni Borries, 1891. Lectotypes are designated for I. picea Matsumura, 1912 (syn. of I. leucospoides (Hochenwarth, 1785)) and for I. japonica Matsumura, 19 12.