Abstract
A list is given of 19 species, belonging to 6 genera, of tetranychids reported on wild, cultivated food-plants in El Salvador (Central America), many of these species cause noticeable and even economically important damage to some of the main crops of the country. Eutetranychus banksi (McG.) was by far the most widespread and important species, damaging the leaves of a variety of crops including castor, Cajanus cajan, cassava and citrus. Other economically important species were Oligonychus punicae (Hirst), which attacks mango, avocado, coffee, Terminalia catappa and other plants, O. mcgregori (Baker & Pritchard) on avocado and other plants, and Tetranychus ludeni Zacher on Luffa cylindrica and watermelon.
