A revision of Leucotrichia (Trichoptera, Hydroptilidae) is provided, including a generic diagnosis, illustrations, a key, and descriptions of males. A total of 43 species are treated, 13 described as new: Leucotrichiaangelinae sp. n. (Venezuela), Leucotrichiadenticulata sp. n. (Mexico), Leucotrichiadianeae sp. n (Costa Rica), Leucotrichiafulminea sp. n. (Ecuador), Leucotrichiahispida sp. n. (Co...

We present a novel meta-community approach to explore the influence of species traits, such as adult body size, larval feeding type and microhabitat, well macrohabitat (main river channel vs. floodplain water bodies) on concentration total Hg accumulated ([THg]) in assemblages caddisflies. analyzed [THg] 157 light-trapped caddisflies sector French upper Rhône River used linear mixed effect mode...