Catoptria orientellus (Herrich-Schäffer, 1850) (Figs 5, 6, 31, 31a, 47) Crambus orientellus Herrich-Schäffer, [1850]: pl 25 Fig. 175. Type locality: Romania (Siebenbürgen = Transylvania). Type material: lost. Neotype male, here designated, Transylv. Alp., Negoi [Romania, Transylvanian Alps, Mount Negoiu], 14.vii, Sammlung [Collection] Disqué, GS 6975 GB, SNSB Material examined: Romania: 1 female, same labels as neotype, GS 6985 GB, SNSB; 1 male, Siebenbürg, Cibingebirg, Tatar, 1900 m, 9.vii.[1]922, N Hahn legit, GS 5971GB, MSNM; 1 female, Mt Paring [Parâng], Cârja, 2100 m, 3.viii.1952, Dr. A. Popescu-Gorj legit, GS 6030 GB, MSNM; 1 male, Aksec 817, RCGB; 1 male, Ujhelyi legit, 10.vii.23, GS 2073 GB, SNMK; 1 female, Retyezát, Zenoga tó [Lake Zănoaga] 18.vii.1914, Ujhelyi legit, GS 2127 GB, RCGB. Diagnosis: The habitus of C. orientellus is most similar to that of C. trichostomus (Figs 9, 10) in having a forewing with a medial stripe interrupted by the antemedial band. However, in the male (Fig. 5), the large postmedial white band is absent, and in the female (Fig. 6), it is arched, off-white and ill-defined, with a more evident brown inner edge, as opposed to the well-defined, white, zigzag-shaped postmedial band between the M1 and M2 veins in C. trichostomus. In the male genitalia (Figs 31, 31a), the short row of 7–8 cornuti longer than those of all related species is diagnostic. In the female genitalia (Fig. 47), the ostium bursae is on average larger than in C. combinella (Fig. 45) and C. coulonellus (Fig. 46), and the ductus bursae is basally simple before twisting, strongly sclerotized, longer, and larger than in those two species. Distribution: Romania. Remarks: The original description of Catoptria orientellus consists of a male, drawn without further notes, as usual in those times. After Herrich-Schäffer’s death, his private collection was split apart by lots and sold. Only a few macrolepidoptera have been found in MfN and in Stuttgart Museum für Naturkunde. Błeszyński (1965), who worked in Germany until his death, after extensive research in German and British Museums, considered all Crambinae of Herrich-Schäffer’s collection definitely lost. To preserve the stability of nomenclature (ICZN 1999), we therefore designate a specimen from the Transylvanian Alps as the neotype.

Published as part of Bassi, Graziano & Huemer, Peter, 2025, Taxonomic and nomenclatorial notes on the Catoptria coulonellus (Duponchel) species group with description of five new species from Western Balkans (Lepidoptera: Pyraloidea, Crambidae), pp. 301-326 in Zootaxa 5719 (3) on pages 306-310, DOI: 10.11646/zootaxa.5719.3.1, http://zenodo.org/record/17891611