Mecyna trinalis

Alipanah, Helen & Slamka, František, 2023, A revision of the subfamily Spilomelinae (Lepidoptera, Crambidae) in Iran with description of a new species, Zootaxa 5248 (1), pp. 1-70 : 55-56

Mecyna trinalis (Denis & Schifferm̡ller, 1775)

( Figs 24E, F , 25A‒F )

Material examined. 25 ÔÔ 25 ♀♀: Alborz Prov.: 1 ♀, 6 km E Âzâdbar- Tâleghân Rd., 2350 m, 21.vii.1988, Mirzâyâns, Badii leg., 1 Ô 1 ♀, Tâleghân, Dizân , N 36°13 ΄47.9″, E 50°57 ΄6.7″, 2284 m, 28.vii.2015 , Mozaffariân leg.; Châhârmahâl and Bakhtiâri Prov. : 1 Ô, S Borujen, 6 km S Dorâhân, 1850–2100 m, 1.vi.2005 , Hofmann, Meineke leg. (gen. prep. HA-2647, HMIM); East Âzarbâijân Prov.: 1 Ô 1 ♀, Kâghazkonân protected area, Âghkand , Hâjimir vill. to Mendejin vill. Rd. , 5.5 km to Mendejin , vill., N 37°21 ΄19″, E 48°11 ΄60″, 1220 m, 15.vi.2020 , Âlipanâh, Falsafi leg.; Golestân Prov.: 3 ÔÔ 1 ♀, Gorgân, Shâhkuh-e Bâlâ , 2100 m, 19.vii.2003 , Âlipanâh, Ebrâhimi leg. (gen. prep. HA-2485, HMIM); Kermânshâh Prov.: 1 Ô, Esâlmâbâd-e Gharb, Sorkheh Dizeh , 1600 m, 2.vii.1972 , Mirzâyâns, Abâi leg.; Kohgiluyeh and Boyerahmad Prov.: 1 Ô, Yâsuj, Sisakht , 2250 m, 13.vi.1972 , Ebert, Pâzuki leg., 1 ♀, Sisakht , 2100 m, 16.vi.1986 , Mirzâyâns, Hâshemi leg.; Kordestân Prov.: 1 Ô, Sanandaj, Âriz , 5.vii.1972 , Mirzâyâns, Abâi leg., 4 ÔÔ 3 ♀♀, Marivân, Miâneh Dâgh , 6.vii.1972 , 2000 m, Mirzâyâns, Abâi leg. (gen. prep. HA-2536, HMIM), 3 ÔÔ, 45 km SW Saghez, Saghez- Bâneh Rd. , 2000 m, 30.vi.1975 , Pâzuki leg., 1 Ô, 10 km W Bijâr, Bâbâ Sorkheh , 2180 m, 29.vi.1975 , Pâzuki leg., 1 Ô, 83 km SE Bâneh , 1750 m, 5.–6.vii.1975 ,

Pâzuki leg.; Mâzandarân Prov.: 1 Ô, Siâhbisheh- Yush Rd. , 3 km Kamarbon vill., N 36°13 ΄51.7″, E 51°24 ΄45.3″, 2557 m, 21, 22.vii.2007 , Âlipanâh leg.; North Khorâsân Prov.: 1 ♀, Golestân National Park, Yâkhti Kâlân , 1500 m, 20.vii.1996 , Ebrâhimi, V. Nazari leg., 2 ♀♀, Golestân National Park, Âlmeh , 1650 m, 17.–18.vii.1996 , Ebrâhimi, V. Nazari leg., 3 ♀♀, N Shirvân, Kopet Dâgh Mt., Sarâni vill., Sarâni protected area, N 37°48 ΄22.5″, E 57°56 ΄29.7″, 1500 m, 22.vi.2013 , Âlipanâh, Falsafi leg.; Razavi Khorâsân Prov.: 4 ÔÔ 4 ♀♀, Khosraviyeh, Âlâdâgh , 1600 m, 16.vi.1974 , Rajabi, Pâzuki leg. (gen. prep. HA-2484, HA-2538, HMIM), 1 Ô, Zoshk, Binâlud , 2000 m, 19.vi.1974 , Rajabi, Pâzuki leg., 4 ♀♀, Ghuchân- Bajgirân Rd., 46 km N Ghuchân, Dorbâdâm protected area, N 37°25 ΄25.5″, E 58°31 ΄34.0″, 1800 m, 20.vi.2013 , Âlipanâh, Falsafi leg., 1 Ô, Daregaz, N Tandoreh National Park, Chelmir , N 37°23 ΄33.6″, E 58°51 ΄23.3″, 1018 m, 24.vi.2014 , Âlipanâh, Falsafi leg., 1 ♀, Daregaz- Kalât-e Nâder Rd., Lâeen vill. to Khâkestar vill. Rd. , before Châhârrâh vill., Hezârmasjed Mts , N 37°02 ΄39.5″, E 59°26 ΄10.11″, 1344 m, 27.vi.2014 , Âlipanâh, Falsafi leg., 1 ♀, 10 km after Golmakân vill., Binâlud Mt. ( Asheghân valley ), N 36°24 ΄12.9″, E 59°06 ΄22.5″, 1884 m, 4.vi.2016 , Âlipanâh, Falsafi leg.; West Âzarbâijân Prov.: 1 ♀, 7 km Silvânâ, Kuheh , 1660 m, 22.vii.1976 , Pâzuki, Borumand leg., 1 Ô, Orumiyeh, 8 km Band ( Mirzââbâd ), 1450 m, 21.vii.1976 , Pâzuki, Borumand leg.

Distribution. Southern part of Central Europe, Germany (Saarland), southern Europe except for some Mediterranean Islands, Italy; Turkey; Transcaucasia ( Slamka 2013), and Iran including Alborz (Elburz Mt. and Gachsar), Golestan (Gorgan), Hamedan (Alvand Mt.), and Tehran (Lar valley) Provinces ( Lederer 1871; Amsel 1961).

Remarks. There is an intraspecific variation among the examined material in wing markings, even within specimens with the same collecting data. Some specimens have a relatively wide brown marginal band as well as welldeveloped, larger and darker reniform and antemedial spots in the forewing ( Fig. 24E ); while in some others, the marginal band is narrow, and the above mentioned spots are smaller and less expressed ( Fig. 24F ). All the specimens collected in the north-eastern parts of Iran are similar to the latter form and those collected in north-western, west and south-western parts are same as the nominotypical (former) form, except the Marivan population in Kordestan Province which includes both forms. This species has no sexual dimorphism in wing pattern.

As we revealed in this study, there are some variations in the size and partly in the shape of the scelotized spines of cornuti of the examined males ( Fig. 25A‒C ), as well as the shape and length of fibula ( Fig. 25D‒F ). The fibula of single specimen collected from S Borujen, Kohgiluyeh and Boyerahmad Province ( Fig. 25D ) is distinctly shorter and wider than the remaining dissected males ( Fig. 25E, F ). The external appearance of the latter specimen and other parts of its genitalia including cornuti structure ( Fig. 25A ) is similar to the remaining specimens.

Figures

FIGURE 24. A) Arnia nervosalis Guenée, female, Hormozgan, Bandar Abbas- Sirjan Rd. B) Diasemiopsis ramburialis (Duponchel), male. C) Mecyna flavalis (Denis & Schifferm̧ller), female. D) M. lutealis (Duponchel), male. E, F) M. trinalis (Denis & Schifferm̧ller), female, East Azarbaijan, Kaghazkonan (E) and male, Razavi Khorasan, Aladagh (F), (scale bar = 10.0 mm).

FIGURE 25. A‒C, G‒I) Cornuti structure in Mecyna trinalis (Denis & Schiffermüller) (A‒C), and M. amasialis (Staudinger) (G‒I). D‒F) Fibula of M. trinalis.