Abstract
Mydrosoma sabarensis sp. n. is described from the Atlantic Forest Domain of southeastern Brazil. Two females and one male were collected on flowers of Serjania sp. (Sapindaceae) in the state of Minas Gerais. An additional female is from Domingos Martins, Espírito Santo state. The female M. sabarensis is about 12 mm long, robust, with predominantly black pubescence but with a wide transverse band of white hairs on the anterior margin of the mesoscutum and yellow lateral bands on T2–T4. The male, about 11 mm long, has pale-fulvous pilosity on the mesosoma and marginal bands on T1–T4, with terga blackish pubescent basally. A key to the five species of Mydrosoma known to occur in Brazil is presented and the classification of the Dissoglottini is discussed. Aspects of foraging and of possible mimicry are also discussed.References
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