Abstract SAENZ A, ADRIANA and OLIVARES, WILLIAM. Speed of movement of first instar larvae of Sagalassa valida (Lepidoptera: Glyphipterigidae). Rev. Colomb. Entomol.[online]. 2008, vol. 34, n. 1, pp. 57-61. ISSN 0120-0488. Abstract: Sagalassa valida, the oil palm rootworm (Elaeis guineensis), is one of the most important pests from Western Colombia, Tumaco (Nariño). However, there is no knowledge about the biology of the larval stages. Therefore to manage this insect, a study was established on the speed of movement of the
