| Summary: | New Caledonia has a rich Trichoptera fauna with over 200 known species, most of them endemic. The total diversity has been estimated as high as 300 to 600 species. The endemic genus Agmina Ward & Schefter (Ecnomidae, Trichoptera) includes 28 described species. Based on male genitalia morphology and previously published molecular data another 47 new species in the genus are described, namely Agmina tuberosa sp. nov., A. semiovale sp. nov., A. rocheta sp. nov., A. tenuisa sp. nov., A. multidentata sp. nov., A. cornuta sp. nov., A. sagittata sp. nov., A. circulata sp. nov., A. digitata sp. nov., A. longispina sp. nov., A. magnahamata sp. nov., A. longicordata sp. nov., A. campanula sp. nov., A. semicampanula sp. nov., A. cunicula sp. nov., A. cerritula sp. nov., A. monstrosa sp. nov., A. rectangulata sp. nov., A. chela sp. nov., A. piscaria sp. nov., A. amplexa sp. nov., A. caraffa, sp. nov., A. rostrata sp. nov., A. dathioensis sp. nov., A. rougensis sp. nov., A. viklundi sp. nov., A. lata sp. nov., A. falx sp. nov., A. guttula sp. nov., A. amieuensis sp. nov., A. spina sp. nov., A. complexa sp. nov., A. dognyensis sp. nov., A. mana sp. nov., A. anterohamata sp. nov., A. curvatacua sp. nov., A. recurvata sp. nov., A. taoensis sp. nov., A. triangulata sp. nov., A. bleuensis sp. nov., A. touhoensis sp. nov., A. wardi sp. nov., A. parallela sp. nov., A. christinae sp. nov., A. brevis sp. nov., A. ninguana sp. nov., and A. scopula sp. nov. Additionally, new records are provide for the species A. acula Ward, 2003, A. artarima Ward & Schefter, 2000, A. berada Ward & Schefter, 2000, A. bimaculata Ward & Schefter, 2000, A. cheirella Ward, 2003, A. comata Ward, 2003, A. diriwi Ward & Schefter, 2000, A. hamata Ward & Schefter, 2000, A. hastata Ward & Schefter, 2000, A. hirta Ward & Schefter, 2000, A. jepiva Ward & Schefter, 2000, A. joycei Ward & Schefter, 2000, A. kapiwa Ward & Schefter, 2000, A. kara Ward & Schefter, 2000, A. mariae Ward & Schefter, 2000, A. nodosa Ward, 2003, A. panda Ward & Schefter, 2000, A. padi Ward & Schefter, 2000, A. parie Ward & Schefter, 2000, A. rhara Ward & Schefter, 2000, A. urugi Ward & Schefter, 2000, and A. vuegi Ward & Schefter, 2000. With a total of 75 described species Agmina is one of the largest animal radiations in New Caledonia. Nothing is known about the early stages of any of the species in this genus.
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