Labiobaetis vinosus (Barnard, 1932)

Kaltenbach, Thomas, Mary, Nathalie & Gattolliat, Jean-Luc, 2021, The Baetidae (Ephemeroptera) of the Comoros and Mayotte, African Invertebrates 62 (2), pp. 427-463 : 427

5. Labiobaetis vinosus (Barnard, 1932)

Labiobaetis vinosus : Barnard 1932 ( Baetis vinosus ); Gillies 1994: figs 16-26 ( Baetis spatulatus ; formal synonym, Kluge and Novikova 2016); Lugo-Ortiz and McCafferty 1997: figs 75-86; Kluge and Novikova 2016: figs 113, 122-129, 132, 133 ( L. tenuicrinitus ; informal synonym, Kluge 2021).

Diagnosis.

Nymph. Following combination of characters: A) labrum on dorsal surface with submarginal arc of feathered setae; B) labial palp segment II with broad, thumb-like protuberance; C) maxillary palp segment II with excavation at inner distolateral margin; D) fore femur rather broad, length ca. 3 × maximum width; dorsal margin with 8-18 curved, spine-like setae and basally a partial second row of setae; E) hind protoptera absent or minute; F) six pairs of gills.

Distribution

(Fig. 9 ). Angola, Comoros, DR Congo, Ethiopia, Ivory Coast, South Africa, Tanzania, Uganda ( Kaltenbach and Gattolliat 2021 and citations therein).

Biological aspects.

The specimens were collected at an altitude of 210 m, together with L. glaucus and N. richardi sp. nov. The characteristics and environmental conditions of the sampling site (Anjouan, Riv. Tatinga) are described in Starmühlner (1979: p. 654): river width 4-8 m, depth 5-10 cm, water temperature ca. 25 °C, bottom substrata consisted of basaltic boulder, gravel and muddy sand.

Material examined.

Comoros • 3 nymphs; Anjouan, Riv. Tatinga , lower course by the bridge; 210 m; 22.03.1974; leg. F. Starmühlner; 2 on slides; GBIFCH00592719 , GBIFCH00592745 ; 1 in alcohol; GBIFCH00515665 ; MZL .

Figures

Figure 9. Distribution of Labiobaetis glaucus and Labiobaetis vinosus in the Comoros Archipelago.