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Eriophyoid mites (Eriophyoidea) are distributed worldwide and are the largest superfamily in the Acari. After over one and a half centuries of field surveys, regional fauna of eriophyoid mites remains unclear. The genus <i>Calvittacus</i> Xue, Song & Hong 2006 is endemic in the Oriental Region, including four species—<i>C. chenius</i> Xue, Wang, Song & Hong, 2009; <i>C. mollissimus</i> Han, Xue & Hong, 2017; <i>C. regiae</i> Xue, Song & Hong 2006; and <i>C. swidanus</i> Song, Xue & Hong, 2009. In this study, we describe one new species, <i>Calvittacus spectabilus</i> sp. nov., collected on <i>Bougainvillea spectabilis</i> (Nyctaginaceae) from China (the Oriental Region). Phylogenetic analysis based on mitochondrial <i>COI</i> barcode sequences confirmed the <i>C. spectabilus</i> sp. nov., coinciding with the morphological delimitation. We further discussed the potential distribution of the <i>Calvittacus</i> species and underlined the integrative approaches in eriophyoid mite delimitation.