Semagystia temreshevi Yakovlev & Shapoval, 2023

Yakovlev, Roman V., Naydenov, Artem E., Shapoval, Nazar A., Shapoval, Galina N. & Pavlova, Polina D., 2023, Review of Semagystia tsimgana species group (Lepidoptera, Cossidae: Cossinae) with description of two new species from Central Asia, Ecologica Montenegrina 70, pp. 83-93 : 86-88

Semagystia temreshevi Yakovlev & Shapoval , sp. n.

https://zoobank.org/ urn:lsid:zoobank.org:act:AF7BE7D7-7735-48E8-8F79-97FBCF2672B4

Figs 2 , 10 , 17−18

Material. Holotype, male, South Kazakhstan, Boraldaitau Mt. Range, Koshkarata river Valley, 775 m, 42°54´N / 70°13´E, 20.vi.2019, leg. P. Gorbunov, slide AN 055 ( ZISP).

Paratypes. 48 males, 9 females, same locality and data ( RYB) ; 9 males, 4 females, South Kazakhstan, Zhambyl Province, 14 km E of Khantau railway station, mt. steppe, 44°11´N / 73°58´E, 3.vi.2015, leg. P. Gorbunov, slide AN 056 ( ZISP, RYB) ; 1 male, 1 female, South Kazakhstan, Syrdariya Karatau Mt. Range , 13 km S of Karakur vill., 890 m, 44°01´N / 68°05´E, 7.vi.2015, leg. P. Gorbunov ( RYB) ; 1 male, South Kazakhstan Province, near Terekty vill., Boralday river , 535 m, 42º52ʹ20.6ʹʹN / 69º52ʹ59.1ʹʹE, 25‒ 28.05.2018, leg. D. Shovkoon ( RYB) .

Description. Male. Length of fore wing 16 mm in holotype, 15−17 mm in paratypes. Thorax and abdomen densely covered with light-brown scales. Antenna about 1/2 of fore wing in length, bipectinate (setae three times longer than antenna stem in diameter). Fore wing brown, with slight sputtering of ocher scales on all wing, poorly noticeable black stroke in discal cell, border very thin, light-brown, fringe grey. Hind wing brown, without pattern, border thin, light-brown, fringe grey.

Male genitalia. Uncus tapered, smoothly narrowing from base to apex, apically acute; gnathos arms thick, of medium length, gnathos of medium size, poorly structured; valve narrow, distal third membranous, apex lanceolate, costal edge of valve (on border between medium and distal thirds) with small process of irregular shape with tiny teeth on edge; transtilla process very short, with very thick basis, sharply narrowing to apex, apex sharply curved, acute; juxta tiny, saddle-like, with pair of short leaf-like processes diverged at obtuse angle; saccus semicircular, small; phallus slightly shorter than valve (4/5 of valve in length), of medium thickness, slightly curved in basal third, slightly narrowing in distal third, vesica aperture about 1/3 of phallus in length, vesica without cornuti.

Female. Larger than male, length of fore wing 15−21 mm. Wing pattern not modified, all wings uniformly brown, with thin light-brown border and brown fringe. Ovipositor very long. Female genitals not studied.

Diagnosis. The new species differs in the very poorly developed pattern on the fore wing, in the male genital structure it is close to S. alaica , from which it differs in a series of characters:

- the apically acute uncus, smoothly narrowing from base to apex (in S. alaica , the uncus is more obtuse, apically trapezoidal);

- the very short transtilla process (in S. alaica , the transtilla process is more robust and long);

- the poorly serrated crest on the costal edge of the valve (in S. alaica , the crest on the costal edge of valve has big teeth).

Distribution. South Kazakhstan (Karatau Mt. Range).

Habitat. Slope with bushes from Atraphaxis L. ( Polygonaceae ), Lepidolopha C. Winkl. ( Asteraceae ), Ephedra L. ( Ephedraceae ), Spiraea L. ( Rosaceae ) etc.

Etymology. The new species is named after the good friend of first author, well-known entomologist Dr. Izbasar I. Temreshev (Almaty), carrying out a huge work on the study of pest and quarantine species in Kazakhstan.

Figures

Figure 17. Type locality of S. temreshevi (photo by P. Gorbunov).

Figure 18. S. temreshevi, male in nature, Khantau (photo by P. Gorbunov).

Figures 1−8. Semagystia, adult males: 1. S. muratovi, Holotype (ZISP); 2. S. temreshevi, Holotype (ZISP); 3. S. alaica, Holotype (MWM); 4. S. dubatolovi, Paratype (ISEA); 5. S. stchetkini, Holotype (MWM); 6. S. tarbagataica, Holotype (ZISP); 7. S. tsimgana, Lectotype with labels (NBCL); 8. S. tsimgana, Chimgan, 18.vii.1990 (MWM). Scale bar = 10 mm.

Figures 9−15. Male genitalia of Semagystia: 9. S. muratovi, Holotype slide AN 039 (ZISP); 10. S. temreshevi, Holotype slide AN 055 (ZISP); 11. S. alaica, Paratype, slide Genitalpräparat Heterocera Nr. 28.223 (MWM); 12. S. dubatolovi, Paratype slide AN 051 (ISEA)13. S. stchetkini, Paratype, slide Genitalpräparat Heterocera Nr. 28.222 (MWM); 14. S. tarbagataica, Holotype (ZISP); 15. S. tsimgana, Chimgan, 18.vii.1990 slide Genitalpräparat Heterocera Nr. 28.221 (MWM).