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The genera Colpixys and Xiphentedon are revised. Both genera are of Afrotropical distribution and are very similar to Entedon, but distinguished by a median strip or furrow on the propodeum replacing the median carina of Entedon. The genus Xiphentedon is characterized by the complete lateral propodeal sulci delimiting convex submedian areas, prosternum with a flange, axillula with indentate projection, and densely hairy central mesopectus. The subgenus Cederholmia Gumovsky, 1997 of Entedon is considered a junior synonym of Xiphentedon, so two of its species are moved to the genus as X. halli (Gumovsky, 1997) comb. nov. and X. danielssoni (Gumovsky, 1997) comb. nov. The genus Colpixys is characterized by the lack of characters of Xiphentedon, but also by the broadly sculptured propodeum with the deep median furrow delimited laterally by two sinuous margins. Three (one new) species are recognized in Colpixys and sixteen (thirteen new) species allocated to three groups (kayovei, danielssoni and forceps), are assigned to Xiphentedon. The new species are: Colpixys eburnus sp. nov. from Ivory Coast and the Republic of South Africa (RSA), Xiphentedon neserorum sp. nov. from RSA, X. simoni sp. nov. from Tanzania, X. dewittei sp. nov. and X. musimba sp. nov. from the Democratic Republic of the Congo (DRC), X. jeanyvesi sp. nov. from Tanzania, the Central African Republic (CAR) and RSA, X. wieringai sp. nov. from Gabon and Ivory Coast, X. kivuensis sp. nov. from DRC, X. palabora sp. nov. from RSA, X. sangha sp. nov. from CAR, X. nimba sp. nov. from Guinea, X. forceps sp. nov. from Ivory Coast, Benin and RSA, X. gerardi sp. nov. from Benin, DRC and RSA, and X. acutigena sp. nov. from Ivory Coast, DRC, Tanzania and RSA. Morphological peculiarities and possible relationships of Colpixys, Xiphentedon, Entedon and some other genera, are discussed.
A world revision of the four entedonine (Hymenoptera: Eulophidae: Entedoninae) genera of larval parasitoids of thrips (Thysanoptera) is presented: Ceranisus Walker, 1841, Entedonomphale Girault, 1915 stat. rev. (reinstated as a valid taxon from previous synonymy under Ceranisus, with type species E. margiscutum Girault, 1915 stat. rev.), Goetheana Girault, 1920, and Thripobius Ferrière, 1938. The following new generic synonymies are proposed: Cryptomphale Girault, 1917, Entedonastichus Girault, 1920, Pirenoidea Girault, 1922, and Thripoctenoides Erdös, 1954 under Entedonomphale. The proposed new combinations are as follows: Entedonomphale bicolorata (Ishii, 1933), E. nubilipennis (Williams, 1916), and Thripobius javae (Girault, 1917) from Ceranisus; Entedonomphale carbonaria (Erdös, 1954), E. dei (Girault, 1922), E. kaulbarsi (Yoshimoto, 1981), and E. mira (Girault, 1920) from Entedonastichus. New synonymies are proposed for the following species: Ceranisus vinctus (Gahan, 1932) under Ceranisus menes (Walker, 1839), Diglyphus aculeo Walker, 1848 under Ceranisus pacuvius (Walker, 1838); Ceranisus maculatus (Waterston, 1930) and Thripobius semiluteus Boucek, 1976 under Thripobius javae (Girault, 1917); Entedonastichus albicoxis (Szelényi, 1982) under Entedonomphale carbonaria (Erdös, 1954), and Entedonastichus gaussi (Ferrière, 1958) under Entedonomphale bicolorata (Ishii, 1933). Eleven new species are described: Ceranisus barsoomensis and C. votetoda (Australia), C. udnamtak (Nepal); Entedonomphale boccaccioi (USA), E. esenini (Madagascar), E. lermontovi (South Africa), E. quasimodo and E. zakavyka (Australia); Goetheana pushkini (Japan and Republic of Korea) and G. rabelaisi (Australia); and Thripobius melikai (China). Three species are excluded from Ceranisus: C. ancylae (Girault, 1917) (mistakenly listed in Ceranisus) as well as C. nigricornis Motschulsky, 1863 and C. semitestaceus Motschulsky, 1863, both taxa incertae sedis. New data are provided on the distribution and host associations of many of the species included in this review.