Tuckerella ornata (Tucker), um ácaro novo para o Brasil e outros tetranychoidea (Acari) do estado do Pará

Abstract

Assinala-se, pela primeira vez no Brasil e também pela primeira vez em cacaueiros, a presença do ácaro Tuckerella ornata (Tucker, 1926). É dada a sua relação com a planta hospedeira. É também feita referencia, para o Estado do Pará, da presença dos ácaros Tenuipalpus heveae Baker, 1945 em seringueiras; Oligonychus mangiferus (Rahman & Punjab, 1940) em castanhola e Tetranychus desertorum Banks, 1900 em juta.Tuckerella ornata (Tucker) is, for the first time, recorded from Brazil (Belem, State of Pará) and also for the first time on cocoa. The female is carmine in color with white dorsal fan-like setae. It was found on woody stems of cocoa plants, where most of the outer tissues have turned corky, but, where areas of live tissue are still present; it was also found inside cracks of the stems. Other Tetranychoid mites from Pará include: - Tenuipalpus heveae Baker, found on the lower face of median to old rubber tree leaves (Hevea sp.); rather large populations were observed, causing a light leaf distortion and bronzing; it is not considered as a pest. - Oligonychus mangiferus (Rahman & Punjab) causes intense leaf bronzing on Terminalia catappa L., an ornamental tree. Rather large populations of this mite were observed on the upper leaf surface; much dirt is caught in their webbings. - Tetranychus desertorum Banks was observed damaging jute, Corchorus capsularis L., causing intense chlorosis to the leaves. Collected at Alenquer, Pará.