Abstract

ABSTRACT In Western Thailand, Miocene shales from Wang Kaew, in the Mae Sot basin, have yielded a diverse insect assemblage comprising 115 articulated specimens. In this preliminary review, 15 subcomplete specimens are studied and referred to at least eight forms belonging to five orders (Coleoptera, Diptera, Hymenoptera, Orthoptera, and Hemiptera). Coleoptera are represented by very nicely preserved specimens of weevils (Curculionidae). Diptera are known by three different taxa referred to Bibionidae, Sciaridae and Brachycera. Hymenoptera are known by representatives of Vespidae and Formicidae. Orthoptera are represented by a single specimen of uncertain affinities and Hemiptera by one Gerrinae. This insect assemblage is the most complete ever reported in Southeast Asia during the Cenozoic.

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