>>52445617>Cryptic, or sibling, species are discrete species that are difficult, or sometimes impossible, to distinguish morphologically and thus have been incorrectly classified as a single taxon.>Fig. 7. (A) Male T. cyanurus; (B) Male T. albocoeruleus; (C) Male T. indicus; (D) T. formosanus (Photographed by A-Craig Brelsford/shanghaibirding.com, B-Xianting Wang, C\D-Vincent Wang).Why doesn't it make sense?