Pleurota grancanariella Tabell, 2025

Tabell, Jukka, Honey, Martin, Leger, Théo, Mutanen, Marko, Nupponen, Timo & Sihvonen, Pasi, 2025, New and poorly known Pleurota Hübner, [1825] species from peninsular Spain, the Balearic Islands, and the Canary Islands (Lepidoptera: Oecophoridae, Pleurotinae), SHILAP Revista de lepidopterología 53 (209), pp. 43-74 : 55-56

Pleurota grancanariella Tabell , sp. nov. ( Figures 23 , 39, 49, 51)

Barcode Index Number: BOLD:ADY6687

Type material. Holotype ♂ (GP 5563 J. Tabell, DNA sample 24934 Lepid Phyl [barcoding failed]): Hispana [ SPAIN], Gran Canaria, Maspalomas , 19-III-1992, P. Grotenfelt [leg.] (coll. MZH), http://id.luomus.fi/GBT.26. Paratypes: 1 ex, same collecting data as holotype ; 1 ♀ (GP 5567 J. Tabell, DNA sample 24935 Lepid Phyl [barcoding failed], same collecting data, but 14-III-1992 (coll. TAB) ; 1 ♀, same collecting data, but 23-III-1981 ; 3 ♀, same collecting data, but 24-III-1981 ; 2 ♂, same collecting data, but 15-III-1983 ; 3 ♀, same collecting data, but 17-III-1983 (coll. MZH, 1 ex. coll MNCN) ; 2 ♂ (DNA sample 26272 Lepid Phyl; DNA sample 26273 Lepid Phyl), Canary Islands, Gran Canaria, 6 km N Maspalomas, 400 m, 27.813347 -15.581433, 23-III-2019, J. Tabell leg. (coll. TAB) ; 1 ♂, Spain, Gran Canaria, Maspalomas , 17-III-1996, K. Nupponen & J. Junnilainen leg. (coll. JUJ) ; 2 ♂, 5 ♀, Spain, Gran Canaria, El Sao , 110 m, 4-23-III-2019, leg. P. Falck ; 1 ♂, same collecting data, but 1- 13-IV-2022 ; 1 ♂, 2 ♀, Spain, Gran Canaria, Degollada de la Yegua, 415 m, leg. P. Falck (coll. Falck) .

Diagnosis: Externally somewhat similar to P. tricolor Tabell, 2019 , known from Morocco, but the forewing is more elongated and greyer, and the cilia of antenna is longer.

Molecular diagnosis: Two specimens were sequenced successfully, resulting in 654 and 653 bp barcode fragments. The nearest neighbour to P. grancanariella is P. algeriella Baker, 1885 from Algeria, with a 6.44 % divergence. The barcodes of P. grancanariella exhibit 0.15 % intraspecific variation.

Description: Adult. Wingspan 19-20 mm. Labial palpus greyish white, ventrally dark brown, dorsolaterally with a blackish brown apical spot, about 6.4x as long as diameter of the eye (1 st and 2 nd segments), 3 rd segment 0.3x length of 1 st and 2 nd segments. Antenna setose, greyish brown. Frontal tuft, neck, tegula and thorax mixed with white and pale greyish brown. Forewing pale greyish brown mixed with white and scattered by brown scales; costal line white, indistinct; subcostal line brown, parallel-sided, at base narrower; median line from base to 2 / 3, white, moderately broad, dorsal margin indistinctly edged, dent narrow, from near base to 1 / 3; dorsal line absent. Fringe line brown. Fringe cilia basally white, apically brown. Hindwing and fringe cilia brown.

Male genitalia: Uncus thimble-shaped from ventral view, elongated, lined with several bristles of different length, apex blunt. Gnathos 1.5x as long as uncus, from ventral view elongate, fluke-shaped, medially expanded and surfaced by small scales, apex with a small rectangular protuberance. Valva elongate, upwards oblique; cucullus thimble-shaped. Anterior extension of juxta straight, short, median part rounded, posterior lobe almost extended to apex of uncus, apex armed with a small tooth. Valval lobe gutter-shaped, upcurved, covered with several small nodules and short bristles distally. Phallus curved, slightly tapered towards apex, with one small plate-shaped cornutus surrounded by a few tiny spines.

Female genitalia: Papilla analis ovoid. Posterior apophysis 10x as long as papilla analis and 1.7x as long as anterior apophysis. Segment 8 elongated longitudinally, rectangular, membranous, dorsolaterally reinforced by sclerotized band, lined with a few long bristles distally, ventral longitudinal sclerotization narrow, as long as segment 8, branch of anterior apophysis narrow. Antrum tubular, as long as segment 8, membranous, anterior 1 / 4 slightly tapered and sclerotized. Ductus bursae membranous, parallel-sided. Corpus bursae ovoid, with one robust arched signum bearing two short, thorn-like protuberances, and two leaf-shaped signa.

Biology: Unknown.

Distribution: Endemic to Gran Canaria, where it is known in Maspalomas and surrounding slopes and in El Sao.

Derivation of name: The specific epithet refers to the island of Gran Canaria, where the moths were collected.

Figures

Figures 22-26. Adults of Pleurota spp. 22. P. malagaensis sp. nov., 1 holotype. 23. P. grancanariella sp. nov., 1 holotype. 24-26. P. subnobilella sp. nov. 24. 1 holotype. 25. 1 paratype. 26. 0 paratype.