IUCN threat status:

Not evaluated

Comprehensive Description

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Differential diagnosis

This genus is very close to Melanostoma Schiner, 1860, but it differs from this by possessing larger size of the body and the abdomen elliptic, wide and flat, arista bare, central portion of the epistoma moderately proeminent, face narrow and longer and wider susrtyli. While Melanostoma has arista sometimes pubescent, not proeminent epistoma, terminalia with a susrtilus thin, straight and uniform, reduced metasternum, legs of males narrow, without bristles, and without patterns of hair or modified piles (from Borges and Pamplona 2003).

The most significant morphological characters to separate Xanthandrus specimens are: postpronotum bare, face and scutellum black, metaepisternum with some fine subappresses pile; metacoxa with a pile tuft at posteromedial apical angle; and antennal pits confluent.

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© Mengual, Ximo

Source: Flower flies (Syrphidae)

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