Arcobaetis gracilentus, Kaltenbach & Kluge & Gattolliat, 2023

Kaltenbach, Thomas, Kluge, Nikita J. & Gattolliat, Jean-Luc, 2023, A new, widespread genus of Baetidae from South Asia (Insecta, Ephemeroptera), ZooKeys 1168, pp. 231-266 : 231

Arcobaetis gracilentus comb. nov.

Nigrobaetis gracilentus : Kang et al. 1994: fig. 7A-L.

Diagnosis.

Larva. Following combination of characters distinguish Arcobaetis gracilentus comb. nov. from other species of Arcobaetis gen. nov.: A) distal margins of segments in middle part of flagellum without long spines; B) labial palp segment III sub-quadrangular, at base narrower than distal margin of segment II ( Kang et al. 1994: fig. 7E); C) hind protoptera present ( Kang et al. 1994: fig. 7G); D) tergalii present on abdominal segments I-VII; E) posterior margin of tergum VI with triangular spines, longer than wide ( Kang et al. 1994: fig. 7K).

Distribution.

Taiwan.