The genus Ceyxia Girault has its status revalidated and 27 species are assembled under it. Seven species previously described are diagnosed (or redescribed) and discussed and 20 new species are described. Ceyxia flaviscapus Girault, 1911 and C. ventrispinosa Girault, 1911 stat. rev. were originally combined with Ceyxia and following are new combinations: C. belfragei (Crawford, 1910) comb. nov., stat. rev.; C. concitator (Walker, 1862) comb. nov.; C. decreta (Walker, 1862) comb. nov.; C. dorsalis (Walker, 1861) comb. nov.; and C. villosa (Olivier, 1790) comb. nov. Ceyxia paraguayensis Girault, 1911 is proposed as junior synonymy of Ceyxia flaviscapus Girault, 1911. The new species are: C. acutigaster sp. nov.; C. amazonica sp. nov.; C. atuberculata sp. nov.; C. bellissima sp. nov.; C. dentiformis sp. nov.; C. diminuta sp. nov.; C. fusidentata sp. nov.; C. gibbosa sp. nov.; C. laminata sp. nov.; C. laticlipeata sp. nov.; C. latilabra sp. nov.; C. longiarticulata sp. nov.; C. longiscutellaris sp. nov.; C. longispina sp. nov.; C. nigropetiolata sp. nov.; C. paraensis sp. nov.; C. parvidentata sp. nov.; C. perparva sp. nov.; C. pseudovillosa sp. nov.; and C. tibiodilatata sp. nov. Host relationships of some species of the genus are presented. A key to species of the genus is also included.
Hosts; parasitoids; taxonomy
