B. maribellealvarezae can be recognized by its adult size, with this species being notably much smaller than B.
grandis, B. angelagonzalezae and B. martajimenezae. Although all four species share similar markings, this species
has a darker ground color on the head, thorax and forewings, and the yellow on the patagia is brightest, while the patagia are yellow-orange in the other three species. The hindwings are semihyaline pale pink.
update: 24.09.2022
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