Baetis parvulus

= B. permultus syn. n.

The Afrotropical species Baetis parvulus Crass 1947 was originally described as male imagines from South Africa. The species Baetis permultus Kopelke 1980 was originally described as male and female imagines (Kopelke 1980a) and eggs (Kopelke 1980b) from Zaire (recently DR Congo). Larvae of the both species have not been described. Examination of larvae and winged stages associated by rearing from South Africa and Tanzania suggest that they belong to one and the same species.

Material examined: SOUTH AFRICA, Garden Route district, basin of Grobbelaars River 18 km N Oudshoorn, 33°25’S 22°16’E, 28–30.I.2019, coll. N. Kluge & L. Sheyko: 1 L-S ♂ , 1 L-S ♀, 8 larvae. TANZANIA, Mbeya Region, Matema, river Mwalalo (tributary of lake Nyasa), 9°29’S, 34°02’E, 6–14.VIII.2016, coll. N. Kluge & L. Sheyko: 8 L-S-I ♂ , 9 L-S-I ♀, 18 larvae.