Hyperolius microstictus Ahl, 1931a: 80.

Tillack, Frank, Ruiter, Ronald de & Roedel, Mark-Oliver, 2021, A type catalogue of the reed frogs (Amphibia, Anura, Hyperoliidae) in the collection of the Museum fuer Naturkunde Berlin (ZMB) with comments on historical collectors and expeditions, Zoosystematics and Evolution 97 (2), pp. 407-450 : 407

Hyperolius microstictus Ahl, 1931a: 80.

Syntypes.

ZMB 36100 and ZMB 77762 (formerly part of ZMB 36100), "Longa, oberhalb Minnescra [sic]" [above Minnesera, today Cuito Cuanavale, on left bank of Longa River (a right tributary of Cuito river) and confluence with Quiriri (Kuarliri) River, Cuando Cubango Province, Angola, ca. 1250 m a.s.l.], coll. [Hugo Baum, see below], 14.I.1900.

Present name.

Hyperolius marmoratus Rapp, 1842.

Remarks.

Depicted in Ahl (1931b: 353, fig. 228). Ahl (1931a: 81) mentioned no collector or donor for the type specimens. However, the syntypes were mentioned earlier by Sokolowski (1903: 541 f.) who described two Rappia specimens collected by the botanist Baum on 14 January 1900 "am Longa oberhalb Minnesera" during the "Kunene-Sambesi-Expedition 1899-1900" led by Pieter van der Kellen. Based on Baum’s notes, Sokolowsy (l. c.) almost literally described the same observations, as was later repeated by Ahl (1931a: 81), i.e. “[…] kleine auf Blättern von Sträuchern nach Art unserer Laubfrösche sitzende Fröschchen [ …]” [ … small frogs sitting on leaves of bushes like our tree frogs …]. Baum’s expedition route in Angola was illustrated by Heintze (2007, map 2).