Ypsolopha costibasella Caradja, 1939

Ponomarenko, Margarita G. & Zinchenko, Yuliya N., 2013, New taxonomic data on the genus Ypsolopha Latreille (Lepidoptera, Ypsolophidae) with descriptions of two new species from the Russian Far East, ZooKeys 289, pp. 25-39 : 28-29

Ypsolopha costibasella Caradja, 1939 Figs 29

Cerostoma costibasella Caradja, 1939: 14; type locality: Mien–Shan, Shanxi, China.

Ypsolophus ulingensis Yang, 1977: 106, figs. 6, 7; type locality: Lingwushan, Hebei, China; syn. n.

Material examined:

Type. Paralectotype of Cerostoma costibasella : ♀, [China], “Mien–Shan (prov. Shansi), Obere Höhe ca. 2000 m 9.7.1937. H. Höne”, "allolectotype of Cerostoma costibasella Car." (designated by A. Popescu–Gorj) (MGAB).

Additional material.

Russia. Primorskii krai: 1♂, 20 km SE Ussuriysk, Gornotaezhnoe, 43°41'42"N, 132°09'24"E, 21 July 1994, gen. slide Yps.-40 MP; 3♂, 2♀, Chuguevskii distr., 39 km E Yasnoe, Snezhnaya Mt., altitude 1230 m, 43°42'56"N, 134°26'15"E, 31 July– 1 August 2012, M. Ponomarenko leg. (IBSS).

Distribution.

China (Beijing, Hebei, Shanxi), Russia (Far East, first record).

Remarks.

The lectotype of Cerostoma costibasella Caradja, which was designated, together with an allolectotype, by Popescu-Gorj (1992), has not been found in MGAB, Bucharest. According to its label the ‘allolectotype’ was collected in the same locality as the lectotype but two days earlier. Certainly the allolectotype is conspecific with the lectotype as indicated by the unique wide lemon yellow costal fascia in the basal half of the forewing. This character was mentioned in the original description by A. Caradja (1939): " ... ein breiter zitronengelber Kostalstreifen von Basis bis 1/2 ...". Recently the type of Ypsolopha ulingensis Yang was studied and illustrated by Sohn (2011) and found to be identical in wing pattern with Ypsolopha costibasella , which was described from the neighbouring province of Shanxi and also from the mountains. An additional series of specimens of both sexes was collected in the Russian Far East on Mt. Snezhnaya. Their wing pattern is identical with that in Ypsolopha costibasella and Ypsolopha ulingensis , and their male and female genitalia agree with those of the latter illustrated by Sohn (2011). Ypsolopha ulingensis Yang is therefore considered to be a junior subjective synonym of costibasella Caradja.