Procloeon species, 2012

Chen, Xiao-Fang & Zhou, Chang-Fa, 2023, A contribution to knowledge of Procloeon Bengtsson, 1915 from the Chinese mainland (Ephemeroptera: Baetidae) with description of a new species, Zootaxa 5353 (2), pp. 163-175 : 173-174

Key to Procloeon species from the Chinese mainland (Nymph)

2. Posterior margins of terga dark ( Fig. 5C ); apical half of caudal filaments brown ( Figs 5C–D )................. P. chinensis

-. Posterior margins of terga pale ( Fig. 5A ); brown band present subapically ( Figs 5A–B ).................... P. pennulatum

Key to Procloeon species from the Chinese mainland (male and female imagoes)

1. Hindwings lack costal projection ( Fig. 1D )................................................. P. strumiferum sp. n.

-. Hindwings with hooked costal projection ( Figs 1B–C )........................................................ 2

2. Hindwings slender ( Fig. 1B ).................................................................. P. pennulatum

-. Hindwings relatively wide ( Fig. 1C ).............................................................. P. chinensis

Figures

FIGURE 1. Wings of male imago (digital photos): A: Forewing of P. strumiferum sp. n.; B: hindwing of P. pennulatum; C: hindwing of P. chinensis; D: hindwing of P. strumiferum. Scale bars: A–C = 1.0 mm; D = 0.1mm.

FIGURE 5. Nymphal habitus of three Procloeon species (digital photos): A: P. pennulatum (dorsal view); B: P. pennulatum (ventral view); C: P. chinensis (dorsal view); D: P. chinensis (ventral view); E: P. strumiferum sp. n. (dorsal view); F: P. strumiferum (ventral view). Scale bars = 1.0 mm.