Ancylosis albicosta ( Staudinger, 1870 )

Bidzilya, Oleksiy, Budashkin, Yuriy & Yepishin, Viktor, 2019, A review of the genus Ancylosis Zeller, 1839 (Lepidoptera: Pyralidae: Phycitinae) from Ukraine, Zootaxa 4657 (3), pp. 437-473 : 448-449

Ancylosis albicosta ( Staudinger, 1870)

( Figs 1, 2 , 33, 34, 59)

Myelois albicosta Staudinger, 1870 —Berl. Ent. Z. 14: 202. TL: Volgograd [Sarepta], Russia.

Heterographis delimitella Ragonot, 1887 —Ann. Soc. Ent. Fr. 1887: 247. TL: Volgograd [Sarepta], Russia.

Heterographis niveicostella Ragonot & Hampson, 1901 —Mém. Lépid. Rom. 8: 149, pl. 29, fig. 7. TL: Ashkhabad, Turkmenistan.

Material examined. 1♂, Kherson reg., Tchernomorsky Nature Reserve , 17.v.1982 (I. Pljushch) ( ZMKU) . 3♂, Kherson reg., Hola Prystan distr. , 4,5 km SW Burkuty, at light, 46°22’01”N, 32°46’20”E, 30.iv-1.v.2017 (V.

Yepishin) ( ZMKU). Genitalia slide: O. Bidzilya prep. no. 114/17 . 1♂, Kherson reg., Oleshky dist. , 3 km WSW Chelburda (Proletarka), Oleshky Sands, 46°36’35”N, 32°59’8”E, 30.iv.2018 (V. Yepishin) ( VYe) . 1♂, Kherson reg., 10 km NE Radensk, Oleshky Sands, at light, 2.v.2010 (V. Serhienko) ( ZMKU) . 1♀, Kherson reg., Tsurupinsk distr., Proletarka vill., 30.iv-2.v.2013 (V. Mushinskiy) . 3♂, Kherson reg., Gola Prystan distr., Burkuty vill., 30.iv–1.v.2017 (V. Mushinskiy & A. Zhakov) . 2♂, Kherson reg., Gola Prystan distr., Burkuty vill., 46°23’29.3N 32°48’34.3E, 22-23.vi.2018 (V. Mushinskiy) (all VM) . Russia: Syntypes of albicosta : ♂, “ Origin. ” | “ Sarepta, ch.” | “ U. Roesler, ♂, GU: 4226” | “ albicosta Stgr ” ( MfN) . 1♀, “ Origin. ” | “ Sarepta ” | “ albicosta Stgr ” | “Genital-Unters., Nr. 259/ 17♀, OB, Zool. Mus. Berlin” ( MfN) .

Diagnosis. Ancylosis albicosta is recognizable externally by comparatively broad dark brown forewing with light brown subcostal area and with contrasting white costal margin ( Figs 1, 2 ). Ancylosis brunneonervella Roesler, 1970 from Mongolia is very similar by the wing pattern, but the forewing are more elongated. The moderately broad, parallel-sided in proximal half valva with distinct sacculus, broad cucullus and distinct elongated subcostal hump in combination with short aedeagus (as long as the length of the valva) are characteristic for the male genitalia ( Figs 33, 34 ). The female genitalia are characterized by distally narrowed corpus bursae with rounded proximal portion, and long, narrow thorn of signa ( Fig. 59 ). Other species of Ancylosis with generally similar female genitalia ( A. roscidella , A. harmoniella , A. unicinatella ( Ragonot, 1890) , A. transcaspica ( Amsel, 1955)) well differ in the wing pattern.

Biology. Host plant is unknown. In Ukraine the species was registered in the Lower Dnipro sand dunes ( Fig. 76 ) from mid April to early May and then in late June. Adults were attracted to light and observed flying in the day time.

Distribution. Libya, Romania, Russia (Middle and Lower Volga region, Southern Ural), North-West Kazakhstan, Turkey, Turkmenistan, Iran, Afghanistan ( Roesler 1973; Speidel 1996; Sinev 2008). In Ukraine the species is known from Kherson region ( Bidzilya et al. 2011: 70, pl. 5, fig. 3; as syrtella ( Ragonot, 1887)) .

Remarks. Myelois albicosta was described from two males and one female from Sarepta. The lectotype is not designated. The male cited as “type” by Roesler (1973: 413) should be considered as a syntype. Its photograph was recently published ( Trofimova 2017: 621, pl. 40, fig. 2). The specimens from Ukraine match well to those from type series both externally and in the male genitalia except for slightly narrower valva.

Figures

FIGURES 1–12. Adults of Ancylosis spp. 1–2. A. albicosta. 3–4. A. substratellum. 5. A. cinnamomella. 6–11. A. sareptalla. 12. A. albidella. 1. ♂, Kherson reg. 2. ♂, Syntype. Sarepta. Prep. no. 4226 U. Roesler. 3. ♂, Crimea. Prep. no. 35/19. 4. ♂, Crimea. 5. ♂, Crimea. Prep. no. 068.18. 6. ♂, Kherson reg. 7. ♀, Andalusien. 8. ♀, Holotype. Sarepta. Prep. no. 4838 U. Roesler. 9. ♂, Erdschias. 10. ♀, Paratype of gulbaharensis, Gulbahar. 11. ♀, Syntype of barbella. Varna. Prep. no. 4843 U. Roesler. 12. ♂, Holotype. Margilan. Prep. no. 5088 U. Roesler. Scale bar: 1 cm.

FIGURES 33–38. Male genitalia of Ancylosis spp. 33–34. A. albicosta. 35. A. oblitella. 36. A. cinnamomella. 37. A. roscidella. 38. A. sabulosella. 33. Kherson reg. Prep. no. 114/17. 34. Syntype. Prep. no. 4226 U. Roesler. 35. Kyiv reg. Prep. no. 083.18. 36. Crimea. Prep. no. 068.18. 37. Zaporizhzhia reg. Prep. no. 287/18. 38. Luhansk reg. Prep. no. 070.18. Scale bar: 1 mm.

FIGURES 59–62. Female genitalia of Ancylosis spp. 59. A. albicosta. 60. A. cinnamomella. 61. A. sabulosella. 62. A. oblitella. 59. Sarepta. Prep. no. 259/17. 60. Kyiv reg. Prep. no. 082.18. 61. Kandahar. Prep. no. 118/19. 62. Donetsk & Zaporizhzhia reg. Prep. no. 074.18. Scale bar: 1 mm.

FIGURES 76–79. Habitats of Ancylosis spp. 76. A. albicosta. Oleshki Sand, vic. of Burkuty vil., Kherson region. 77. A. deserticola and A. sareptalla. Oleshki Sand, vic. of Chelburda (Proletarka) vil., Kherson region. 78. A. larissae sp. nov. Uzun-Syrt, Crimea (photo V. Savchuk). 79. A. substratellum. Barakol Lake, Crimea.