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

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Coscinia cribraria ibicenca Kobes, 1991

stat. rev.

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 View FIGURES 1–8 ). 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 View Materials , KX 042130 View Materials ), the highest p-distance (7.99%) with a specimen of C. cribraria   from the Potenza Province in S. Italy ( HM 914014 View Materials )   .

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 View Materials , KX 042130 View Materials ).

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 View FIGURE 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)


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