Istrianis femoralis ( Staudinger, 1876 )

Bidzilya, Oleksiy & Karsholt, Ole, 2015, Revision of the genus Istrianis Meyrick, 1918 (Lepidoptera, Gelechiidae) with special regard to the Palaearctic region, Zootaxa 4059 (3), pp. 401-445 : 429-430

12. Istrianis femoralis ( Staudinger, 1876)

Teleia femoralis Staudinger, 1876: 146

Teleia comedonella Staudinger, 1879: 312 (Synonymized by Huemer & Karsholt 1999). Teleia gravosensis Rebel, 1937: 13 (Synonymized by Huemer & Karsholt 1999). Teleia angustipennis Rebel, 1941: 4 , fig. 10 (Synonymized by Huemer & Karsholt 1999). Teleia funebrella Rebel, 1941: 5 , fig. 3 (Synonymized by Huemer & Karsholt 1999). Teleiodes angustipennis ( Rebel, 1941) : Budashkin & Piskunov 1990: 81.

Istrianis femoralis ( Staudinger, 1876) : Huemer & Karsholt 1999: 83.

Material examined. Ukraine: 1♀, Crimea, Karadagh, 27.v.1994 (Kostjuk) ( ZMUC); 1♂, Crimea, Karadagh, 5.ix.2004 (Budashkin) (gen. slide 43/11, O. Bidzilya); 1♂, Crimea, Mys Martijan, 13.vi.2008 (Kornilov) (gen. slide 102/13, O. Bidzilya); 1♀, Crimea, Mys Martijan, 01.viii.2008 (Kornilov) (gen. slide 103/13, O. Bidzilya) (all ZMKU);

Kyrgyzstan: 3♂, 2♀, Tian-Shan, prov. Dzhalal-Abad, distr. Kotshkor-Ata, prope pag. Toskool, fauc. Alash-Saj, 1100 m, 30–31.v.2013 (Rutjan) (gen. slide 42/ 11 ♂, 41/11♀, 267/ 12♂, 100/13♀, O. Bidzilya) ( ZMKU);

Iran: 1♀, Zanjan prov., 51 km NE Zanjan, Ab Bar circuit, Hezr Rud vill., 800 m, 29–30.iv.2008 (Rutjan) ( ZMKU).

Turkey: 1♀, Taurus, Prov. Içel, road Ermenek-Mut, 600 m, 15.vii.1986 (Fibiger); 1♂, Taurus, Prov. Mersin, Güzeloluk, NW Erdemil, 1400 m, 16.vii.1986 (Fibiger); 1♀, Prov. Antalya, 40 km N Alanya, 5 km S Gündoğmus, 1100 m, 14.vii.1987 (Fibiger); 1♂, Prov. Kayseri, Erçiyes Dagi, 2100 m, 19.x.1987 (Hillman & Moberg); 1♂, Anamur, 0–50 m, 8–12.v.1991 (Cox) (all ZMUC);

Cyprus: 1♂, Larnaca, 28.iii.1991 (Johansson); 4♂, 1♀, Trodos Mts., Platres, 1200 m, 11–16.v.1999 (Hviid & Skule); 2♂, 2♀, Hisaköy, 250 m, 12–18.v.2007 (Skule); 1♂, same data but 30.iii–3.iv.2008 (Hviid & Skule); 1♂, Limasol distr., Laneia, 550 m, 23–29.vi.1997 (Fibiger, Jeppesen, Madsen & Nilsson); 1♀, 15 km W Limasol, Fasouri, 5 m, 25.vi.1997 (Fibiger, Nilsson & Svendsen); 1♂, 1♀, Akdeniz Plaji, 10 m, 1–3.iv.2008 (Hviid & Skule) (all ZMUC);

Greece: 1♂, Delfi, 3.v.1990 (Seneca); same data but 2♂, 1♀, 18–19.v.1997 (Selling); 1♀, Drama, 20 km E Strymon Delta, 27.vi.1987 (Fibiger); 1♂, Evro, Kavisos, 100 m, 22–23.viii.1985 (Fibiger); 1♂, Lakonia, 7 km SW Monemvasia, 8.viii.1980 (Christensen); 1♂, same data but 5 km S Monemvasia, 24.vi.1981; 1♂, 2♀, Makedonia, Kavala, Loutra, Elettheron, 30.viii.1989 (Larsen) ( ZMUC); 1♀, Makedonia, Olympos, Litokhoro, 250–650 m, 21– 26.v.1990 (Karsholt); 1♀, Crete, Heraclion, 150 m, 20–26.iv.1995 (Fibiger); 1♀, Crete, 5 km S Topolia, 300 m, 25– 26.vi.2000 (Fibiger, Madsen, Nilsson & Svendsen); 1♀, same but 4 km S Topolia, 300 m, 25–29.vi.2000; 1♀, Crete, Chania distr., Skines, 75 m, 5–11.vi.2004 (Hviid, Skule & Vesterhede); 9♂, 5♀, Dodokanese Isl., Kalymnos, Arginoda, 10 m, 29.iv.–v.2004 (Fibiger, Jeppesen, Madsen & Nilsson); 2♂, Rhodos, 5 km S Rodos, 250 m, 4– 8.vii.2000 (Fibiger); 3♂, 1♀, Dodokanese Isl., Tilos, Eristos Beach, 13–27.vii.2008 (Aachmann-Andersen); 1♂, 2♀, Kos, Asfedion, 6–12.x.1988 (Johansson); 1♂, 1♀, Lefkanda, Nedri, 15–16.viii.1995 (Baungaard) (all ZMUC).

Bulgaria: 2♀, Blagoevgrad, 5 km N Sandanski, 130–200 m, 31.vii.–9.viii.2012 (Karsholt) ( ZMUC).

Croatia: 1♀, Krk, Misučaynica, 30.vii.1975 (Baldizzone); 2♂, Krk, 1 km N Stara Baska, 30 m (Skou) (all ZMUC).

Adult ( Fig. 31 ). Wingspan 9.0– 13.2 mm. Head grey, frons off-white, labial palpus whitish, black-ringed, scape black, other antennal segments black with grey rings; thorax grey black-tipped; forewing light grey, a large subtriangular spot from base to nearly half length of costa and to half width of the wing, black pattern of irregular shape extending from 1/2 to 2/3 of costa to ¾ of dorsal margin, apex suffused with black, cilia grey black-tipped; hindwing grey.

Male genitalia ( Figs 70, 71 ). Tergite VIII triangular or subrectangular, tongue-shaped, anteromedial emargination shallow; sternite VIII more than two times broader than long, posteriolateral projections short, rounded apically. Uncus elongated, narrow, apex rounded; gnathos two times broader and distinctly longer that uncus, apex with strongly sclerotized hook; tegumen boomerang-shaped with lateral lobes parallel-sided, anteromedial emargination deep, triangular; valva moderately broad, weakly broadened apically; phallus tapered, longer than valva.

Female genitalia ( Figs 96 , 125 ). Segment VIII about as longer as broad; apophyses anteriores longer than segment VIII, moderately thick, apex drop-shaped; posterior sclerite distinctly longer than broad, deeply emarginated posteriorly; anterolateral sclerites leaf-shaped; anterior sclerites narrow; subostial folds indistinct; antrum narrow, funnel-shaped; ductus bursae long, weakly broadened before globular corpus bursae; signum subhexagonal, margins finely serrated, posterior lobe much broader than anterior lobe, medial ridge narrow, interrupted in middle.

Diagnosis. I. femoralis is well recognized externally by the light grey forewing with a large subtriangular black spot on the costal margin and poorly expressed markings which are hidden with black pattern. The male genitalia mostly resemble those of I. kyrgyzsquamella , having the gnathos two times broader than the uncus, but the gnathos of I. kyrgyzsquamella is more rounded apically rather than tapered as in I. femoralis . The female genitalia are characterized by narrow and long posterior sclerite in the combination with leaf-shaped anterolateral sclerites. Moreover the posterior lobe of signum is broader than anterior lobe, whereas the converse is the case in nearly all other Istrianis species.

Biology. The larvae live within shoots and fruits of Pistacia mutica Fish. & Mey and Pistacia vera L. ( Anacardiaceae ) as well as in the marginal leaf galls of the aphis genus Forda (Budashkin & Piskunov 1990: 81) . Adults have been found in all months from April to October. In the eastern Crimea the adults fly from the last third of May to late July and from the last third of July to late September in two generations.

Distribution. Spain, Italy (incl. Sicilia), Croatia, Macedonia, Palestine, Slovenia, Ukraine (Crimea), Turkey, Turkmenistan (Budashkin & Piskunov 1990; Huemer & Karsholt 1999; Šumpich & Skyva 2012), Kyrgyzstan (new record), Iran (new record).

Notes. The type information on I. femoralis and all the currently recognized synonyms of this species were discussed in detail by Huemer & Karsholt (1999).

Figures

FIGURES 22 – 42. Adults of Istrianis species. 22 — I. kravchenkoi, ♂, HT, Palestine (gen. slide 5699, H. Hendriksen); 23 — I. wachtlii, ♂, Palestine (gen. slide 37 / 11, O. Bidzilya); 24 — I. wachtlii, ♀, Egypt (gen. slide 62 / 10, O. Bidzilya); 25 — I. brucinella, ♀, Egypt (gen. slide 266 / 12, O. Bidzilya); 26 — I. brucinella, ♀, Pakistan; 27 — I. sattleri, ♂, HT, Pakistan (B. M. gen. slide 14355); 28 — I. sattleri, ♂, PT, Pakistan (gen. slide 413 / 14, O. Bidzilya); 29 — I. armatus, ♂, HT, Yemen (gen. slide 567 / 14, O. Bidzilya); 30 — I. armatus, ♀, PT, Yemen (gen. slide 568 / 14, O. Bidzilya); 31 — I. femoralis, ♂, Kyrgyzstan; 32 — I. lvovskyi, HT, ♂, Mongolia (gen. slide 63 / 10, O. Bidzilya); 33 — I. lvovskyi, ♂, PT, Mongolia (gen. slide 252 / 12, O. Bidzilya); 34 — I. lvovskyi, PT, ♂, Mongolia; 35 — I. sruogai, PT, ♂, Tadzhikistan; 36 — I. sruogai, PT, ♀, Tadzhikistan (gen. slide 178 / 14, O. Bidzilya); 37 — I. piskunovi, HT, ♂, Ukraine (GU 96 / 630, P. Huemer); 38 — I. falkovitshi, HT, ♂, Turkmenistan (gen. slide 257 / 12, O. Bidzilya); 39 — I. falkovitshi, PT, ♀, Turkmenistan (gen. slide 10 / 13, O. Bidzilya); 40 — I. squamodorella, LT, ♂, Palestine (gen. slide 26 / 11, O. Bidzilya); 41 — I. squamodorella, PT, ♀, Palestine (gen. slide 26 / 11, O. Bidzilya); 42 — I. squamodorella, PT, ♀, Palestine.

FIGURES 69 – 74. Male genitalia of Istrianis species. 69 — I. armatus, Yemen (gen. slide 567 / 14, O. Bidzilya); 70 — I. femoralis, LT, Italia (gen. slide 96 / 579, P. Huemer); 71 — I. femoralis, Kyrgyzstan (gen. slide 42 / 11, O. Bidzilya); 72 — I. lvovskyi, HT, Mongolia (gen. slide 63 / 10, O. Bidzilya); 73 — I. lvovskyi, Mongolia (gen. slide 252 / 12, O. Bidzilya); 74 — I. sruogai, PT, Tadzhikistan (gen. slide 174 / 14, O. Bidzilya).

FIGURES 96 – 98. Female genitalia of Istrianis species. 96 — I. femoralis, Kyrgyzstan (gen. slide 100 / 13, O. Bidzilya); 97 — I. lvovskyi, PT, Mongolia (gen. slide 61 / 10, O. Bidzilya); 98 — I. sruogai, HT, Tadzhikistan (gen. slide 175 / 14, O. Bidzilya).

FIGURES 108 – 125. Female genitalia of Istrianis species, sternite VIII. 108 — I. myricariella, Germany (B. M. gen. slide 6255); 109 — I. myricariella, Bulgaria (gen. slide 179 / 14, O. Bidzilya); 110 — I. myricariella, Tunisia (gen. slide 271 / 14, O. Bidzilya); 111 — I. arenicolella, PLT, Algeria (gen. slide 64 / 13, O. Bidzilya); 112 — I. arenicolella, Spain (gen. slide 263 / 12, O. Bidzilya); 113 — I. arenicolella, Spain (gen. slide 269 / 14, O. Bidzilya); 114 — I. pseudomyricariella, PT, Kyrgyzstan (gen. slide 11 / 13, O. Bidzilya); 115 — I. pseudomyricariella, HT, Kyrgyzstan (gen. slide 70 / 11, O. Bidzilya); 116 — I. pseudomyricariella, PT, Tadzhikistan (gen. slide 351 / 14, O. Bidzilya); 117 — I. nilssoni, HT, Greece (gen. slide 5519, H. Hendriksen); 118 — I. nilssoni, PT, Greece (gen. slide 6147, H. Hendriksen); 119 — I. kravchenkoi, PT, Greece (gen. slide 5947, H. Hendriksen); 120 — I. wachtlii, Egypt (gen. slide 62 / 10, O. Bidzilya); 121 — I. brucinella, Egypt (gen. slide 266 / 12, O. Bidzilya); 122 — I. brucinella, Pakistan (gen. slide 185 / 14, O. Bidzilya); 123 — I. sattleri, PT, Pakistan (B. M. gen. slide 14359); 124 — I. armatus, PT, Pakistan (gen. slide 568 / 14, O. Bidzilya); 125 — I. femoralis, Kyrgyzstan (gen. slide 100 / 13, O. Bidzilya);