A new species of Attheyella (Canthosella) from Colombia and redescription of Attheyella (Delachauxiella) freyi (Copepoda: Harpacticoida: Canthocamptidae)

摘要

Occasional collections of organisms from water bodies of the Andean Region and the Pacific coast of Colombia yielded two species of canthocamptid harpacticoids belonging to the genus Attheyella Brady, 1880. A new species, Attheyella (Canthosella) chocoensis n. sp., inhabiting phytotelmata of the forest at the Pacific Choco State is described. Attheyella (Delachauxiella) freyi Loffler, 1963, described from Ecuador, was found in a high mountain pond in the southern Colombian Andes, and redescribed here. Both species are illustrated with line drawings and SEM photographs. A special morphological structure was discovered on the antenna of male and female Attheyella (D.) freyi: it is probably present in other species of the subgenus Delachauxiella Brehm,1926, as well. An identification key to Colombian species of the family Canthocamptidae is provided.