Integrative taxonomy of the Capnia cordata species group (Plecoptera: Capniidae)

The Capnia cordata species group (Plecoptera: Capniidae) is reviewed based on an integrative taxonomic approach that combines morphological and molecular methods. Within this group, two species are described as new to science: C. s. lat. bispina Cao & Li sp. nov. from Qinghai Province and C. s. lat. huanglong Cao & Li sp. nov. from Sichuan Province. Both are illustrated and compared with related taxa, and keys for both males and females of the species group are provided. The known localities of the C. cordata species group are mapped. Additionally, a phylogenetic analysis based on Cox1 sequence was conducted involving 14 species of the Capniidae family, supporting the distinctness of this species group.