Labiobaetis Novikova & Kluge in Ethiopia (Ephemeroptera, Baetidae), with description of a new species Author Kaltenbach, Thomas https://orcid.org/0000-0001-8052-0388 Museum of Zoology, Palais de Rumine, Place Riponne 6, CH- 1005 Lausanne, Switzerland & University of Lausanne (UNIL), Department of Ecology and Evolution, CH- 1015 Lausanne, Switzerland thomas.kaltenbach@bluewin.ch Author Gattolliat, Jean-Luc https://orcid.org/0000-0001-5873-5083 Museum of Zoology, Palais de Rumine, Place Riponne 6, CH- 1005 Lausanne, Switzerland & University of Lausanne (UNIL), Department of Ecology and Evolution, CH- 1015 Lausanne, Switzerland text African Invertebrates 2021 2021-02-24 62 1 231 255 http://dx.doi.org/10.3897/afrinvertebr.62.62029 journal article http://dx.doi.org/10.3897/afrinvertebr.62.62029 2305-2562-1-231 E78BE37B3A274A16B4F8FE24E3BA2167 D6B5B7B648B6527898474ABDACD47ECC 1. Labiobaetis alahmadii Gattolliat & Al Dhafer, 2018 Labiobaetis alahmadii Gattolliat et al. 2018 : figs 20-33. Differential diagnosis. Nymph . Following combination of characters: A) colouration: abdomen dorsally brown, with light pattern as Gattolliat et al. 2018 : figs 32, 33; B) scape without distolateral process; C) labial palp segment II with thumb-like protuberance; segment III slightly pentagonal; D) maxillary palp segment II with excavation at inner distolateral margin; E) fore femur rather broad, length ca. 3 x maximum width; dorsal margin with ca. 18 curved, spine-like setae and many fine, simple setae, and basally some additional spine-like setae near margin; femoral patch reduced; F) fore tibia dorsally with a row of short, spatulate setae ( Gattolliat et al. 2018 : fig. 26); G) hind protoptera well developed; H) seven pairs of gills; I) paraproct with ca. 16 stout, marginal spines. Examined material. Ethiopia • 6 nymphs ; Lower Mille River ; 11°24'50"N , 40°45'38"E ; 482 m ; leg. W. Graf ; 5 in alcohol; GenBank MW307224 ; GBIFCH00763724 , GBIFCH00515555 ; 1 on slide; GenBank MW307223 ; GBIFCH00763723 • 1 nymph ; Korkada ; 08°30'03"N , 39°33'07"E ; 09.12.2017 ; 1260 m ; leg. W. Graf ; Kk2; in alcohol; GenBank MW307225 ; GBIFCH00763718 • 1 nymph ; Korkada ; 08°30'03"N , 39°33'07"E ; 1260 m ; 09.11.2017 ; leg. W. Graf ; Kk1; in alcohol; GenBank MW307226 ; GBIFCH00763719 • 1 nymph ; Worer ; 09°20'07"N , 40°10'20"E ; 740 m ; 29.01.2018 ; leg W. Graf ; Wr1; in alcohol; GenBank MW307222 ; GBIFCH00763720 • 1 nymph ; Lafessa ; 08°23'16"N ; 38°54'31"E ; 1600 m ; 05.11.2017 ; Lf1; leg. W. Graf ; in alcohol; GenBank MW307227 ; GBIFCH00763732 ; all material in MZL . Biological aspects. The specimens were collected at altitudes between 480 m and 1600 m. Further characteristics of sampling sites are given in Englmaier et al. 2020 : table 1. In Saudi Arabia, the species occurs in medium-size streams with stony substrates, preferably in relatively fast flowing water or even at the base of small waterfalls ( Gattolliat et al. 2018 ). Distribution. Ethiopia (Fig. 2a ), Saudi Arabia ( Gattolliat et al. 2018 ).