Stomopteryx lineolella ( Eversmann, 1844 )

Junnilainen, Jari, Karsholt, Ole, Nupponen, Kari, Kaitila, Jari-Pekka, Nupponen, Timo & Olschwang, Vladimir, 2010, The gelechiid fauna of the southern Ural Mountains, part II: list of recorded species with taxonomic notes (Lepidoptera: Gelechiidae) 2367, Zootaxa 2367 (1), pp. 1-68 : 55-56

Stomopteryx lineolella ( Eversmann, 1844)

Figs. 49 & 51

Ajat river 03–05.VII.1997 (3 exx.), 24.VII.1998 1 (ex.); Burannoe 06.VIII.2005 (2 exx.), 07.VIII.2005 (3 exx.), 18.VIII.2006 (35 exx.), 19.VIII.2006 (3 exx.); Chalk Hills 21.VIII.2006 (8 exx.), 22.VIII.2006 (4 exx.); Shkunovka 01.IX.2000 (1♂). Genitalia slides: K. Nupponen prep. no. 1/ 11.XI.2008 (♂), 3/ 11.XI.2008 (♂). Type material studied: Lectotype with nine labels: “spass | lineolella Evm. albipalpella? H&S.523. | 187a | coll. Eversmann | Lectotype ♂ Lita lineolella Evm. Teste K. Sattler. 1978 | (red label) Holotype | ♂ Prep No 15654 Lectotype, underside label Lita lineolella ♂ Eversmann, 1844 | Stomopteryx lineolella ( Eversmann, 1844) Piskunov det. 1983” (ZISP).

Other material studied: Russia, Volgograd oblast, Olhovka village 20 km S, 23.IX.2002 (1♂), K. Nupponen leg. ( KN) .

Distribution. Russia (S Ural, Lower Volga), S Siberia.

Remarks. S. lineolella was described from S Ural. However, because it was considered a problematic species according to the criteria of the catalogue of European Lepidoptera ( Karsholt et al. 1996) it was not mentioned in that work. Externally S. lineolella can be separated from the closely related S. mongolica Povolný, 1975 by the presence of a characteristic dark, distinct longitudinal basal streak in the forewing, which is missing in mongolica , and by the smaller size of the adult (11–15 mm; in mongolica 17–19 mm). There are also differences in the male genitalia: in S. lineolella the valva is more slender and gradually curved from base to tip, and the aedeagus is distinctly shorter; in S. mongolica the valva is medially slightly broader and more strongly bent than in the other parts, and a narrow distal part of the aedeagus is longer. Recently described S. radicalis Falkovitsh & Bidzilya, 2003 also has a longitudinal basal streak in the forewing, but the adult is larger (16–19 mm) and paler, and in the male genitalia the valva and the aedeagus are more slender than those of S. lineolella (Bidzilya pers. comm.; Falkovitsh & Bidzilya 2003). S. radicalis has been reared from Artemisia turanica .