5. Labiobaetis potamoticus Gattolliat & Al Dhafer, 2018

Labiobaetis potamoticus Gattolliat et al. 2018: figs 1-15, 19

Differential diagnosis.

Nymph. Following combination of characters: A) colouration: abdomen dorsally brown, with pattern as Gattolliat et al. 2018: fig. 19; B) scape without distolateral process; C) labial palp segment II with small, thumb-like protuberance; segment III slightly pentagonal; D) maxillary palp segment II without excavation at inner distolateral margin; E) fore femur rather broad, length ca. 3 × maximum width; dorsal margin with ca. 8 curved, spine-like setae; femoral patch reduced; F) hind protoptera well developed; G) seven pairs of gills; H) paraproct with ca. 36 stout, marginal spines.

Examined material.

Ethiopia • 2 nymphs; Wonji; 08°28'24"N, 39°12'44"E; 1550 m; 09.11.2017; leg. W. Graf; Wj1; 1 on slide; GenBank MW307235; GBIFCH00763731; 1 in alcohol; GenBank MW307232; GBIFCH00674637 • 9 nymphs; Dubti; 11°41'50"N, 41°07'23"E; 374 m; leg. W. Graf; S14; 8 in alcohol; GBIFCH00515559; 1 in alcohol; GenBank MW307234; GBIFCH00763727 • 9 nymphs; Worer; 09°20'07"N, 40°10'20"E; 740 m; 29.01.2018; leg. W. Graf; Wr1; 8 in alcohol; GBIFCH00515560; 1 in alcohol; GenBank MW307233; GBIFCH00763721 • 2 nymphs; Yimre; 09°04'59"N, 40°10'03"E; 797 m; leg. W. Graf; 1 on slide; GBIFCH00592436; 1 in alcohol; GBIFCH00515566 • 1 nymph; Awash Kunture; 08°42'22"N, 38°36'19"E; 2003 m; 07.11.2017; leg. W. Graf; Ak1; in alcohol; GBIFCH00515567 • 1 nymph; Lafessa; 08°23'16"N, 38°54'31"E; 1600 m; 09.11.2017; leg. W. Graf; Lf1; in alcohol; GBIFCH00515568; all material in MZL .

Biological aspects.

The specimens were collected at altitudes from 370 m to 2000 m. Further characteristics of sampling sites are given in Englmaier et al. (2020). In Saudi Arabia, the species occurs in aquatic vegetation in still reaches of small to medium-sized streams with sandy substrate (Gattolliat et al. 2018).

Distribution.

Ethiopia (Fig. 2b), Saudi Arabia (Gattolliat et al. 2018) and potentially Iran (Tahmasebi et al. 2020).