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 .