Coscinia cribraria ibicenca Kobes, 1991

Macià, Ramon, Mally, Richard, Ylla, Josep, Gastón, Javier & Huertas, Manuel, 2019, Integrative revision of the Iberian species of Coscinia Hübner, [1819] sensu lato and Spiris Hübner, [1819], (Lepidoptera: Erebidae, Arctiinae), Zootaxa 4615 (3), pp. 401-449 : 416-417

Coscinia cribraria ibicenca Kobes, 1991 stat. rev.

Original combination: Coscinia cribraria ibicenca Kobes 1991 . Nachrichten des Entomologischen Vereins Apollo 11 (4), 194 LT. Ibiza, Balearic Islands ( Spain)

Material studied. 1♂, 1♀ Torrent des Fornàs (near Can Cosme) Eivissa (Balears), 120 m, 7.VIII.2012, 31SCD61, Dantart leg. ; 1♂, 1♀ Platja de Migjorn , Formentera (Balears), 9.X.2006 ; 4♂♂ 2♀♀ Es Caló , Formentera (Balears), 15 m, 31SCC78, 13/ 14.IX.2017, R. Macià leg.

Diagnosis. C.c.ibicenca is generally smaller than the nominate C. cribraria . It is characterized by having the upper part of the forewings with blue-silver veins and the spaces between them blackish grey. Hindwings pale grey.

Description. Imago ( Figs 7–8 ). Average wingspan 29.06 mm (n=15; 25–36 mm).

Genitalia (Fig. 32). There are no characteristics that differentiate this taxon from the nominate subspecies, C. c. cribraria or from C. c. benderi and C. c. rippertii .

Immature stages. Not studied.

Molecular data. The seven genetically investigated specimens differ by 0–0.65% from each other, with an average of 0.25%. The p-distances to other C. cribraria specimens range from 1.08% to 7.99%; the lowest p-distance (1.08%) is with two C. cribraria specimens from W-Maurion Saorge in the southern French Provence-Alpes-Coted’Azur ( KX 042015 , KX 042130 ), the highest p-distance (7.99%) with a specimen of C. cribraria from the Potenza Province in S. Italy ( HM 914014 ) .

The three specimens successfully sequenced for the nuclear wingless gene differ by 0–0.30% from each other and 0–0.60% from the wingless sequences of other C. cribraria specimens.

The specimens of Coscinia c. ibicenca form a strongly supported monophyletic group (1.00 PP, 97% BS), indicating a common evolutionary origin of the sampled specimens. Furthermore, this clade is in a moderately supported tritomy (0.99 PP, 79% BS) with the monophyletic C. c. rippertii and a clade comprising the two same specimens mentioned above and identified as C. cribraria from the southern French Provence-Alpes-Cote-d’Azur ( KX 042015 , KX 042130 ).

Biology. Bivoltine, with a first generation in May-June and a second one from mid-August to September-October; both sexes are attracted by artificial light. The larvae are polyphagous, feeding on numerous grasses ( Poaceae ) and low plants including Rosmarinus , Erica , Rubus , Plantago , Taraxacum and Cistus , among others ( Ylla et al. 2010).

Distribution ( Fig. 54 ). Endemic of Eivissa and Formentera (Balearic Islands).

FIGURE 32. C. cribraria ibicenca , male and female genitalia, gen. prep. 5799JG m. Platja Migjorn, Formentera, Balears, ( Spain), 5798JG f. Platja Migjorn, Formentera, Balears, ( Spain)

Figures

FIGURE 54. Distribution map of C. cribraria ibicenca.

FIGURES 1–8. 1. C. cribraria cribraria, male, Villanueva de Sigena, Huesca, (Spain) (coll. RMV); 2. C. cribraria cribraria, female, Villanueva de Sigena, Huesca, (Spain) (coll. RMV); 3. C. cribraria benderi, male, El Abalario, Huelva, (Spain) (coll. RMV); 4. C. cribraria benderi, female, El Abalario, Huelva, (Spain) (coll. RMV); 5. C. cribraria rippertii, male, Llac de Colomers, Val d´Aran, Lleida, (Spain) (coll. RMV); 6. C.cribraria rippertii, female, Llac de Colomers, Val d´Aran, Lleida, (Spain) (coll. RMV); 7. C. cribraria ibicenca, male, Torrent des Fornàs, Eivissa, Balears, (Spain) (coll. RMV); 8. C. cribraria ibicenca, female, Torrent des Fornàs, Eivissa, Balears, (Spain) (coll. RMV).