Abstract
Simulium (Ectemnaspis) anaimense, new species, is described from the pharate female, pharate male, pupa and larva. The biology of the new species and the species present in the Páramo region near the Potosí stream in the department of Tolima, Colombia are mentioned.
References
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Coscarón, S. 1990. Taxonomía y distribución del subgénero Simulium (Ectemnaspis) Enderlein (Simuliidae, Diptera, Insecta). Iheringia, Sér. Zool., Porto Alegre (70): 109–170.
Muñoz de Hoyos, P. 1995. Género Gigantodax (Diptera: Simuliidae) en Colombia. Rev. Acad. Colomb. Cienc. 19 (74): 587–592.
Wygodzinsky, P. & S. Coscarón. 1982. Description of three unusual species of the black fly subgenus Simulium (Ectemnaspis) from the Andes of Colombia (Diptera, Simuliidae). American Museum Novitates 2736: 1–13.

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