Ivanauskiella limoniella, Bidzilya & Karsholt & Šumpich, 2023

Bidzilya, Oleksiy, Karsholt, Ole & Šumpich, Jan, 2023, A revision of the genus Ivanauskiella (Lepidoptera: Gelechiidae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 63 (1), pp. 135-164 : 153-160

Ivanauskiella limoniella sp. nov.

( Figs 25–34 , 47 , 60–63 , 80–82 , 89–90 )

Ivanauskiella psamathias (misidentification): KOSTIUK et al. (1994); BlD- ZlLYA (1997: 124); BlDZlLYA (2009: 3); JUNNlLAlNFN et al. (2010: 27). Type material examined. HOLOTYPF: J, UKRAINE: LUHANSK RE- GION: Melovoi distr., Streltsovskaya Steppe Nature Reserve, 6.vii.2002, on light, O. Bidzilya leg. (gen. slide 171/20, OB) ( ZMKU). PARATYPFS: 1 ♀, same data as for holotype but 10.vii.2002 (gen. slide 22/20, OB). ZAඉORIZHZHYA REGION: 1 ♀, Volnyansk distr., Balchanskaya balka, 25.vi.1997, O. Zhakov leg. (gen. slide 27/20, OB); 1 J, same data as for preceding but 22.vi.1997; 2 JJ. DONETSK /ZAඉORIZHZHYA REGION: Kamennye Mohyly Nature Reserve, 9.vii.1991, O. Zhakov leg. (genitalia in vial with glycerine);1 J, Zaporizhzhya,Khortitsa Island, 3.vii.1991, O. Zhakov leg. DNIඉROඉETROVSK REGION: 1 J, Majorka vill., 23.vi.2011, V.Afanasieva leg. (gen. prep. in vial with glycerine) (all ZMKU). BULGARIA: 3 JJ, Čerepovo, 14.vi.2005, J. Buszko leg. ( ZMUC); 10 JJ 2 ♀♀, Blagoevgrad, 5 km N Sandanski, 150–200 m, 23.–27.v.2010, O. Karsholt leg.(gen. slide 159/20J, OB; 5228 OK) ( ZMUC); 16 JJ 9 ♀♀, Sandanski env., Sandanski Ploski, 250 m, 17.–31.v.2010, N. Savenkov leg. ( ECKU). TURKEY: GȔMȔŞHANE: 1 J, Kop Pass, Gümüşhane, 2300 m, 19.vii.1989, M. Fibiger & N. Esser leg. (gen. slide 150/20, OB) ( ZMUC). KONYA: 1 J, Aksehir, Sultan Dagh, 1900 m, 11.–12.vi.1986, M.Fibiger leg. (gen. slide 179/22, OB) ( ZMUC). NEVŞEHIR: 2 JJ, 7 km SE Avanos, 1200 m, 2.viii.1989, M. Fibiger & N. Esser leg. (gen. slide 152/20, OB) ( ZMUC). RUSSIA: ORENBURG DISTRICT: 3 JJ, 20 km S from Pokrovka village, Schibendy valley, 1.–2.vii.2003, K. Nupponen leg. ( ZMUC); 2 JJ 1 ♀, Akbulak, Pokrovka Chalk Hills, 28.–30.vi.2017, N. Savenkov & H. Roweck leg. ( ECKU); 1 J, Verbljushka Mount, 6 km W from Donskoje village, 51°23′N 56°49′E, 130–340 m, 24.–28. vi.2009, J. Šumpich leg. (gen. prep.18083, J. Šumpich) (Barcode TLMF Lep 25170) ( NMPC); 1 ♀, Kidriasovo village, Mednogorsk 20 km S, 51°13′N 57°37′E, 350 m, 21.vi.2009, J. Šumpich leg. (gen. prep. 23016, J. Šumpich) ( NMPC). ALTAI REඉUBLIC: 3 JJ, Kosh-Agach Distr., Kurai env.(6,5 km SW), 50°10′35″N, 87°53′55″E, grassy steppe, 1550 m, 9.–10. vii.2014, J. Šumpich leg.(Barcode NMPC-Lep-0388) (gen. prep.23001, JŠ) ( NMPC); 1 ♀, Belyashi (Dzhazator) env. (25 km NW), confluence of Argut and Karagem rivers, 49°51′56″N, 87°10′22″E, rocky steppe, 1400 m, 27.–28.vii.2017, J. Šumpich leg. (Barcode NMPC-Lep-0389) ( NMPC); 3 JJ, Kosh-Agach Distr., Kurai env.(15 km SW), Dzhangyskol lake, 50°10′49″N; 87°44′19″E, coniferous forest/steppe, 1830 m, 24.–25. vi.2015, J. Šumpich leg. ( NMPC); 1 J, same locality but 29.–30.vi.2019, J. Šumpich leg. ( NMPC); 1 J, Aktash vill., 50°19′12″N; 87°36′00″E, grassy steppe, rocks, 1400 m, 11.vii.2014, J. Šumpich leg. ( NMPC); 1 ♀, same locality but 21.vi.2015, J. Šumpich leg. ( NMPC); 2 JJ 4 ♀♀, 45 km N of Ulagan vill., Chulyshman valley, 51°01′03″N; 88°00′39″E, grassy steppe, rocks, 600 m, 27.–28.vi.2015, J. Šumpich leg. (DNA Barcode NMPC-Lep-0387) ( NMPC); 18 JJ 4 ♀♀, same locality but 26.–27.vi.2019, J. Šumpich leg. (gen. prep. 23002, JŠ) ( NMPC, ZMUC); 11 JJ, same locality but 4.–5.vii.2019, J. Šumpich leg. (DNA Barcode

NMPC-Lep-0616) (gen. slide 263/20, OB) ( NMPC); 1 J, Kosh-Agach Distr., Chagan-Uzun env., Krasnaya Gorka hill, 50°05′00″N; 88°25′15″E, rocky steppe, 1870 m, 4.vii.2014, J. Šumpich leg. ( NMPC); 4 JJ 2 ♀♀, same locality but 1.–3.vii.2019, J. Šumpich leg. ( NMPC); 1 ♀, Kosh- -Agach Distr., 40 km NW Belyashi village, 49°52′N; 87°10′E, 1270 m, 26.–28.vi.2014, S. Sinev leg. ( ZIN); 1 J, Kosh-Agach Distr., Tabozhok river valley, 50°05′N; 88°44′E, 2100 m, 2.–4.viii.2016, S. Sinev leg. ( ZIN). ZABAYKALSKY KRAI: 1 J, Barun Torey Lake east bank, Mergen, 18.vi.1988, I. Kostjuk leg. (gen. slide 25/20, OB) ( ZMKU). YAKUTIA: 3 JJ, 50 km S Yakutsk, near Oktemtsy village, steppes slope, 24.–27. vi.2005, A. Lvovsky leg. ( ZIN).

Diagnosis. Ivanauskiella limoniella sp. nov. is a uniformly coloured grey species with distinct sheen. Ivanauskiella turkmenica is also nearly uniformly coloured but light brown rather than grey, and with diffuse subapical pale fascia. Specimens of I. albimarginata sp. nov. with indistinct white suffusion along margins remotely resemble I. limoniella sp. nov. but differ in the absence of sheen that is very characteristic for the latter species. The male genitalia are characterised by 8–10 large thorn-shaped cornuti, a few minute spine-shaped cornuti and a distal plate of minute thorns in the vesica. Ivanauskiella ainella has the same suit of cornuti but 12–15 rather than 8–10 large cornuti, and the medial part of the valva in I. ainella is broader than the medial part of uncus (as broad as uncus in I. limoniella sp. nov.). The female genitalia are distinctive by having a small rounded anterior signum and a large posterior signum with posteriorly directed horn-shaped processes.

Description. Adult ( Figs 25–34 ). Wingspan 7.5–11.0 mm. Head, thorax and tegulae light grey to greyish brown, with distinct sheen; labial palpus grey with inner surface light grey; scape of antenna brown, flagellum brown with indistinct grey rings; forewing uniformly light grey to light brown or olive grey with distinct sheen, no markings, fold mottled with brown in some specimens, fringe light grey; hindwing grey.

Variability. Specimens from Bulgaria are variable in wingspan (7.5–9.0 mm).

Male genitalia ( Figs 60–63 ). Uncus slender from base to half of its length, then strongly widened towards triangular apex, extending to top of valva, posterior margin weakly serrate; tegumen subrectangular; valva constricted, in middle as broad as uncus, gradually bent, apical third as broad as top of uncus; sacculus about half length of valva, as broad as valva in middle; vinculum short; saccus short, triangular; phallus with 8–10 comparatively large and 5–7 small thorn-shaped spines, distal plate large, of irregular shape.

Female genitalia ( Figs 47 , 80–82 ). Papilla analis subovate, covered with short hair-like setae and strong basal setae; apophysis posterioris longer than apophysis anterioris; segment VIII weakly sclerotised, subtrapezoidal, slightly broader than long; apophysis anterioris straight; ductus bursae of even width except for gradually broadened anterior portion, colliculum with two short thorn-shaped sclerites, situated in middle of ductus bursae; corpus bursae rounded, anterior signum small rounded plate, posterior signum elongate plate with two posteriorly directed horns. Molecular data. BIN: BOLD:ADD9916. The intraspecific average distance of the barcode region is 1.11% (n = 7). The minimum distance to the nearest neighbour, I. occitanica , is 6.75% (p-dist).

Etymology. The species name is derived from the host plant of the larva – Limonium sp. (Plumbaginaceae) ; noun in apposition.

Biology. The larva was observed feeding in the inflorescence of Limonium sp. Adults fly from late May to mid-July. They were collected by sweeping of Limonium sp. during night in South-West Bulgaria and were also attracted to light. The habitat there is a very dry, sandy hill. Altaic specimens were collected in open grassland and rocky steppe ( Figs 91–92 ). In the eastern Ukraine the moths were attracted to light in forb steppe.

Distribution. The species was recorded as I. psamathias from Bulgaria and Russia: South Ural (JUNNlLAlNFN et al. 2010), Ukraine (BlDZlLYA 1997), Russia: Volgograd region (ANlKlN & PlSKUNOv 2001: 263), Zabaikalskiy krai (KOSTIUK et al. 1994) and Yakutia (BlDZlLYA 2009). Additional verified records are from Turkey and additional regions of Russia (the Altai Republic and Orenburg District).

Ivanauskiella occitanica ( Nel & Varenne, 2013) ( Figs 35–40 , 48–50 , 64–67 , 83–85 , 88 )

Spatuncusella occitanica Nel & Varenne, 2013:40 .TL: France, Pyrénées- Orientales, Saint-Laurent de la Salanque, La Ramada

Ivanauskiella occitanica ( Nel & Varenne, 2013) : HUFMFR & KARSHOLT (2020: 126)

Ivanauskiella psamathias (misidentification): ŠUMPlCH (2013: 24) Material examined. SPAIN: GRANADA: 1 J, Rio de Baza, 12.–13. vii.1987, G. Baldizzone & E. Traugott-Olsen leg. ( ZMUC); 3 JJ 1 ♀, Camino Baza-Benamaurei, 15 km from Baza, 16.vii.1987, G. Baldizzone & E. Traugott-Olsen leg. (gen. slide 184/ 22♀; 185/22J, OB) ( ZMUC). ALMERIA: 1 J, 6 km SW Tabernas, Mini Hollywood , 400 m, 25.iii.1994, H. van der Wolf leg. ( RMNH); 1 J, 7 km S Tabernas, Mini Hollywood , 650 m, 2.–3.v.2000, H. van der Wolf leg.( RMNH). FRANCE: HERAULT: 1 J, Frontignan plage, 21.–23.viii.2001, A. Cox leg. (gen. slide 5139 Hendriksen) ( ZMUC). ITALY: SICILY: 4 JJ 6 ♀♀, 5 km W Pachino, Pantano Longarini, see lev., 12.ix.2002, M. Fibiger, G. Jeppesen & O. Karsholt leg.(gen.slide 148/20J, 149/ 20♀, OB; 3792 ♀, 3793J, Hendriksen) ( ZMKU, ZMUC). SARDINIA: 1 ♀, La Caletta, 6.ix.2007, H. Roweck & N. Savenkov leg. (gen. slide 183/20, OB) ( ECKU). CROATIA: KRK ISLAND: 3 JJ 4 ♀♀, Soline, 11.–15.viii.1976, G. Baldizzone leg. (gen. slide 3337 Hendriksen); 1 J, same data but 10.viii.1978 (gen. slide 142/20, OB); 1 ♀, same data but 15.viii.1979 (gen. slide 141/20, OB); 4 ♀♀, 13.viii.2007 (gen. slide 22326 Nel) ( RCBG, ZMUC). NORTHERN DALMATIA: 2 JJ, Pirovac env., Tisno, 13.–20.viii.2007, J. Šumpich leg. (gen. prep. 23001 and 18507, JŠ) (Barcodes NMPC-LEP-0209, NMPC-LEP-0210) ( NMPC). GREECE: PELOඉONNESE: 1 J, Kalogria, 10.ix.2020, 5 m, P. Huemer leg. (Barcode TLMF Lep 30042) ( TLMF). EVROS: 2 JJ, 35 km N Alexandropolis, Kirki, 500 m, 8.vii.1986, M. Fibiger leg. (gen. slide 163/20, 188/22, OB) ( ZMUC). TURKEY: KAY- SERI: 1 J, 5 km NW Ercyis Daği, 2000 m, 22.vii.1986, M. Fibiger leg. ( ZMUC); 1 ♀, 20 km S Erciyes Daği, 2000 m, 28.vii.1989, M. Fibiger & A. Esser leg. (gen. slide 11.279, Baldizzone) ( ZMUC).

Diagnosis. The species is characterized externally by having the forewing covered with grey-brown tipped scales. Ivanauskiella turkmenica differs in having diffuse pale subapical fasciae. Ivanauskiella limoniella sp. nov. is similar but is glossy. 12–15 needle-shaped spines in the vesica separate I. occitanica sp. nov. from the externally similar I. limoniella sp. nov., which has 8–10 spines. Two comparatively long thorn-shaped sclerites on colliculum in combination with broadly separated and laterally directed processes of posterior signum in the female genitalia of I. occitanica are unique among species of the genus. Ivanauskiella nigripunctata sp. nov. has somewhat similar signa, but the horn-shaped processes are shorter, the anterior signum is rounded or weakly elongate, and the colliculum bears one thorn-shaped sclerite.

Description. Adult ( Figs 35–40 ). Wingspan 7.5–9.5 mm. Head, thorax and tegulae grey to greyish brown; segment 2 of labial palpus brown with light grey apex, segment 3 grey, mixed with brown; scape of antenna greyish-brown, flagellum brown, ringed with grey; forewing covered with grey brown-tipped scales, indistinct blackish spot at end of cell; fringe dark grey; hindwing grey.

Male genitalia ( Figs 49–50 , 64–67 ). Uncus slender from base to 1/2–2/3, strongly widened towards triangular apex, extending to top of valva, posterior margin weakly serrate; tegumen subrectangular; valva constricted, in middle slightly broader than medial portion of uncus, gradually bent, apical 1/3 as broad as top of uncus; sacculus about 1/2 length and slightly broader than valva in middle; vinculum short; saccus short, triangular; phallus with 12–15 elongate, needle-shaped and 5–7 very small thorn-shaped spines, distal plate large, of irregular shape.

Female genitalia ( Figs 48 , 83–85 ). Papilla analis subovate, covered with short hair-like setae and strong basal setae; apophysis posterioris slightly longer than apophysis anterioris; segment VIII weakly sclerotised, subtrapezoidal, slightly broader than long; apophysis anterioris straight; ductus bursae of even width except for gradually broadened anterior portion, colliculum with two comparatively large thorn-shaped sclerites, situated at 1/3 of ductus bursae; corpus bursae rounded, anterior signum elongate plate, posterior signum irregular plate with two lateral weakly or distinctly curved horns.

Molecular data. BIN: BOLD:ABW:5477. The intraspecific average distance of the barcode region is 1% (maximum 1.61%) (n = 6). The minimum distance to the nearest neighbour, I. limoniella sp. nov., is 6.75% (p-dist).

Biology. Host plant unknown, but probably Limonium sp. Adults have been recorded from early August to mid-September. In southern Sicily moths were collected by sweeping among Limonium sp. during night in a salt marsh. In Croatia it was found in forest-steppe near the coast ( Fig. 90 ).

Distribution. Spain (new record), France, Italy (new record), Croatia (new record), Greece (new record), Turkey (new record).

Remarks. Spatuncusella occitanica was described as a type species for the genus Spatuncusella Nel & Varenne, 2013 . Later, the genus was synonymized with Ivanauskiella and S. occitanica with I. psamathias by NFL & VARFNNF (2017), but recently reinstated as a separate species (HUF- MFR & KARSHOLT 2020). Specimens from Spain differ in smaller wingspan and lighter forewing and hindwing. However, male and female genitalia match specimens of I. occitanica from other regions. Croatian specimens (Pirovac) were previously published as I. psamathias (ŠUMPlCH 2013).

Figures

Figs 25–34. Adults of Ivanauskiella limoniella sp. nov. 25–26 – Ukraine: 25 – holotype, male (gen. slide 171/20, OB); 26 – paratype, female (gen. slide (gen. slide 22/20, OB); 27 – Bulgaria, female; 28–32 – Russia: 28 – Zabaikalskiy krai, male (gen. slide 25/20, OB); 29–30 – Ural: 29 – female (gen. prep. 23016, JŠ); 30 – male (gen. prep.18083, JŠ); 31–32 – Altai: 31 – male (gen. slide 23012, JŠ); 32 – female (gen. prep. 23011, JŠ); 33–34 – Armenia: 33 – male (photo 23004, JŠ); 34 – female (gen. prep. 23006, JŠ).

Figs 45–50. Details of morphology of Ivanauskiella species. 45–46 – male abdominal segments VII–VII: 45 – I. ainella (Chrétien, 1908) (gen. slide 139/20, OB); 46 – I. bovis sp. nov. (gen. slide 131/20, OB). 47–48 – female abdominal segments VI–VII: 47 – I. limoniella sp. nov. (gen. slide 22/20, OB); 48 – I. occitanica (Nel & Varenne, 2013) (gen. slide 141/20, OB). 49–50 – male genitalia of I. occitanica with coremata: 49 – grape-shaped and hair-like coremata, Greece (gen. slide 188/22, OB); 50 – hair-like coremata, Turkey (gen. slide 152/20, OB).

Figs 60–63.Male genitalia of Ivanauskiella limoniella sp. nov.60 – holotype, Ukraine (gen. slide 171/20, OB); 61 – paratype, Bulgaria (gen. slide 159/20, OB); 62 – paratype, Russia, Zabaikalskiy krai (gen. slide 25/20, OB); 63 – paratype, Turkey (gen. slide 150/20, OB).

Figs 80–82. Female genitalia of Ivanauskiella limoniella sp. nov. 80 – Russia, Altai (gen. prep. 23002, JŠ); 81–82 – Ukraine: 81 – gen. slide 22/20, OB; 82 – posterior signum, lateral view (enlarged) (gen. slide 27/20, OB). a – colliculum (enlarged); b – signa (enlarged).

Figs 88–92. Habitats of Ivanauskiella species. 88 – sands near Vedi in Armenia – habitat of I. albimarginata sp. nov.. 89 – rocky steppe near Tabernas in Spain – habitat of I. nigripunctata sp. nov.. 90 – coast near Pirovac in Croatia – habitat of I. occitanica (Nel & Varenne, 2013). 91–92 – habitats of I. limoniella sp. nov., Russia: 91 – southern Ural, steppe near Kidriasovo; 92 – Altai Mts, Kurai steppe near Kurai village.

Figs 35–44.Adults of Ivanauskiella species. 35–40 – I. occitanica (Nel & Varenne, 2013): 35–36 – Croatia: 35 – male (gen. slide 23001, JŠ); 36 – male (gen.slide 18507, JŠ); 37 – female, Italy, Sardinia (gen. slide 38/20, OB); 38 – female, Italy, Sicily; 39 – male, Spain (gen.slide 185/22, OB); 40 – female, Spain (gen. slide 184/22, OB). 41–43 – I. albimarginata sp. nov., males: 41 – holotype, Armenia (barcode NMPC-Lep_0727); 42 – paratype, Iran (gen. slide 14/22, OB); 43 – paratype, Iran (gen. slide 1/23, OB). 44 – I. turkmenica Ivinskis & Piskunov, 1980, male, Uzbekistan (gen. slide 168/20, OB).

Figs 64–67. Male genitalia of Ivanauskiella occitanica (Nel & Varenne, 2013). 64 – Sicily (gen. slide 148/20, OB); 65 – Croatia (gen. slide 142/20, OB); 66 – Greece (gen. slide 163/20, OB); 67 – Croatia (gen. prep. 18507, JŠ).

Figs 83–85. Female genitalia of Ivanauskiella occitanica (Nel & Varenne, 2013). 83 – Croatia (gen. slide 141/20, OB); 84 – Italy (gen. slide 149/20, OB); 85 – Spain (gen. slide 184/22, OB). a – colliculum (enlarged); b – posterior signum (enlarged); c – anterior signum (enlarged).