315a (314b). Scutellum with obvious paired bristles, at least 2 frenal ones present in posterior

corners (Figs.A-B), often with additional pairs on scutellum or even posteriorly on

scutum; antennae inserted low on face, sockets rather far apart (Fig.C); body mostly not

metallic............................................................................................................……................................... 316

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A B C

315b. Scutellum without any pairs of obvious bristles, thorax generally either with rather regular

hairiness or almost bare; in other respects also partly different........................…...........…............ .317