Review of Centroptella Braasch &amp; Soldán 1980 (Ephemeroptera, Baetidae)
Authors: KLUGE NIKITA J. 
Published: October 2021

The Eastern Hemisphere genus Centroptella Braasch & Soldán 1980 (s. l.) is divided into three subgenera, the subgenus Centroptella s. str., the subgenus Crassolus Salles et al. 2016 and the subgenus Chopralla Waltz & McCafferty 1987. Among them, Centroptella s. str. and Crassolus are more closely related one to another than to Chopralla, that in the hierarchical nomenclature can be expressed as the following: Centroptella/g1 {Chopralla + Centroptella/g2 {Crassolus + Centroptella/g3}}.

                The subgenus Centroptella s. str. is distributed in the Oriental Region and Australia; it includes the following species: Centroptella (s. str.) longisetosa Braasch & Soldán 1980 with a new subspecies C. longisetosa cinerea subsp. n. (described here from southern India based on larvae, subimagines, imagines of both sexes and eggs associated by rearing); C. (s. str.) femorata sp. n. (described here from Lombok Island based on larva, subimago and male imago associated by rearing); C. (s. str.) soldani Müller-Liebenau 1983 (known from Sri Lanka and redescribed here based on larvae, female subimagines and eggs associated by rearing); C. (s. str.) ornatipes sp. n. (described here from southern India based on larvae, subimagines, imagines of both sexes and eggs associated by rearing); C. (s. str.) breviseta sp. n. (described here from New Guinea based on larvae, subimagines, female imagines and eggs associated by rearing); C. (s. str.) illiesi (Lugo-Ortiz & McCafferty 1998) (known from Australia and redescribed here based on non-reared larvae, subimagines and imagines); C. (s. str.) fustipalpus (Lugo-Ortiz & McCafferty 1998) (known from Australia as larvae only); C. (s. str.) quadrata Shi & Tong 2019 (known from China as larvae only); C. (s. str.) sp. cf. quadrata (reported here from Borneo based on male and female larvae ready to molt to subimago); C. (s. str.) ovata Shi & Tong 2019 (known from China as larvae only); and C. (s. str.?) papilionodes Marle et al. 2016 (known from Borneo as larvae only).

                The subgenus Crassolus is distributed in the Afrotropical Region, Oriental Region and southern Palaearctic Region; it includes the following species: Centroptella (Crassolus) inzingae (Crass 1947) (known from South Africa as larvae and imagines); C. (Crassolus) saxophila (Agnew 1961) (known from South Africa and redescribed here based on larvae, subimagines, imagines of both sexes and eggs associated by rearing); C. (Crassolus) ludmilae sp. n. (described here from Tanzania based on larvae, subimagines, imagines of both sexes and eggs associated by rearing), C. (Crassolus) ingridae Kluge et al. 2020 (known from Indochina and here redescribed based on larvae, subimagines, imagines of both sexes and eggs associated by rearing), C. (Crassolus) pontica (Sroka et al. 2019) (known from Turkey as larvae only); C. (Crassolus?) bifida (Shi & Tong 2019) (known from China as larvae only); C. (Crassolus?) sp. «Nepal» (reported here from Nepal based on larva.

                The subgenus Chopralla is distributed in the Oriental Region; it includes the following species: Centroptella (Chopralla) ceylonensis Müller-Liebenau 1983 (= C. similis Müller-Liebenau 1983 syn. n.) (known from southern India and Sri Lanka and redescribed here based on larvae, subimagines, imagines of both sexes and eggs associated by rearing); C. (Chopralla) ghatensis sp. n. (described here from southern India based on larvae, subimagines, imagines of both sexes and eggs associated by rearing); C. (Chopralla) rufostriata sp. n. (described here from Lombok Island based on larvae, subimagines, imagines of both sexes and eggs associated by rearing); C. (Chopralla) papuanica sp. n. (described here from New Guinea based on larvae, subimagines, female imagines and eggs associated by rearing); C. (Chopralla) pusilla Müller-Liebenau 1984 (known from Borneo and redescribed here based on male larvae ready to molt to subimago); C. (Chopralla) kangi sp. n. (described here from Borneo based on male and female larvae ready to molt to subimago); C. (Chopralla) colorata Soldán et al. 1987 [= C. fusina (Tong & Dudgeon 2003) syn. n.] (known from Vietnam and China as larvae and imagines associated by rearing); and C. (Chopralla) bintang Marle et al. 2016 (known from Borneo as larvae only).