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Remarks:
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setulae on posteroventral half of head all black, without any pale setula; arista usually bare but shortly plumose only in M. pubiceps; postpronotum with 3 setae arranged in line; 3 pairs of presutural dorsocentral setae; 3 postsutural intra-alar setae; anatergite with a spot of microscopic setulae below lower calypter; Cs2 ventrally setulose
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