During samplings carried out to evaluate the diversity of calyptrate flies (Diptera: Calyptratae) in northeastern Argentina, Mesembrinella bicolor (Fabricius, 1805) was first detected. This finding represents the second species of Mesembrinellidae from Argentina, after Mesembrinella bellardiana Aldrich, 1922 and the southernmost known record for a species of Mesembrinellidae. A brief diagnosis of both species is included.
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Dufek et al. (2023) studied this question.
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