Thalerosphyrus lamuriensis, Sartori, 2014

Sartori, Michel, 2014, What is Ecdyonurus sumatranus Ulmer, 1939? A contribution to the knowledge of the genus Rhithrogena in the Oriental Region (Ephemeroptera, Heptageniidae), Zootaxa 3802 (2), pp. 193-208 : 206

publication ID	https://doi.org/ 10.11646/zootaxa.3802.2.3
publication LSID	lsid:zoobank.org:pub:8585D3AD-653C-4ED6-8523-FB6427A313C5
DOI	https://doi.org/10.5281/zenodo.6141721
persistent identifier	https://treatment.plazi.org/id/BB1ECFF8-9624-4EAE-A9EF-F02DD3F82763
taxon LSID	lsid:zoobank.org:act:BB1ECFF8-9624-4EAE-A9EF-F02DD3F82763
treatment provided by	Plazi
scientific name	Thalerosphyrus lamuriensis
status	sp. nov.

Treatment

Thalerosphyrus lamuriensis sp. nov.

Ecdyonurus sumatranus Ulmer, 1939 , nymph only, not female imago

Ecdyonuroides sumatrensis [sic] Dang, 1967 , nymph only

Thalerosphyrus sumatranus Braasch & Soldán, 1984 View in CoL and auct. seq. nymph

Material. Holotype: one male nymph, Indonesia, Western Sumatra, stream in primary forest at the Subang pass , 1000 m., 4.III.1929, Prof. Feuerborn leg. [ ZMH]

Specimen kept in alcohol, except hindleg, gills and mouthparts mounted on 3 microscopic slides.

Paratypes: 32 nymphs, Indonesia, Sumatra Barat, Bukit Barisan, above Padang , creek, 1047m, 00° 56.739’S 100 32.730’E, ( UN3 ), 8.XI.2011, M. Balke leg. [ MZL, ZMH, LIPI] GoogleMaps ; 4 nymphs, Indonesia, Sumatra Barat, Harau Canyon , stream, 540m, 0° 04.428’S 100° 38.002’E, ( SUM009 View Materials ), 27.IX.2009, M. Balke & D. Amran leg. [ MZL, LIPI] GoogleMaps ; 5 nymphs, Indonesia, Sumatra Barat, Universitas Andalas campus , forest stream, 360m, 00° 54.666’S 100° 28.379’E, ( UN1 ), 8.XI.2011, M. Balke leg. [ MZL] GoogleMaps ; 2 nymphs, Indonesia, Sumatra Barat, Bukit Tinggi to Palupuh , 680m, 0° 08.128’S 100° 15.514’E, ( SUM010 View Materials ), 28.IX.2009, M. Balke & D. Amran leg. [ ZMH] GoogleMaps ; 6 nymphs, Indonesia, Sumatra Barat, Solok, Alahan Panjank Road , 1190m, 0° 56.345’S 100° 46.411’E, ( SUM003 View Materials ), 24.IX.2009, M. Balke & D. Amran leg. [ MZL] GoogleMaps

Etymology. From Lamuri, an old Arabic name for the island of Sumatra.

Description. See Ulmer 1939, p.669, figs. 429–439. A supplementary description based on the paratype material will be published elsewhere.

Distribution. Only known from the island of Sumatra.

Discussion. Dang (1967) designated E. sumatranus as the type species of the genus Ecdyonuroides . There is little question that he had in mind the nymph of E. sumatranus when establishing the new genus, and not the female. But the holotype of E. sumatranus is the female imago designated explicitly by Ulmer (1939) and thus represents the name-bearing type. With its current assignment as Rhithrogena sumatrana , Ecdyonuroides Dang, 1967 must be considered as a junior subjective synonym of Rhithrogena Eaton, 1881 syn. nov. If the concept of Ecdyonuroides proposed by Dang (1967) later proves to be valid and different from the one of Thalerosphyrus , then another genus name should be proposed to encompass the affected taxa at that time.