jear2012 [Journal of Entomological and Acarological Research 2013; 45:e1] [page 1] Isotrias penedana sp. n. a new species of Lepidoptera (Tortricidae: Chlidanotinae: Polyorthini) from Portugal P. Trematerra Department of Agricultural, Environmental and Food Sciences, University of Molise, Campobasso, Italy Abstract A new species of Tortricidae (Lepidoptera: Chlidanotinae: Polyorthini), Isotrias penedana sp. n., is described. The new species was collected in Serra da Peneda, in the Peneda-Gerês National Park located in the north-western region of Portugal. I. penedana differs from other species of the genus Isotrias by shape of the forewing and the male genitalia. In the new species forewing markings are com- pletely atrophied or indistinct. The socii are short and broad, covered with long setae, and the costa of the valva is hardly concave basally. The imago and male genitalia are illustrated. Introduction A new tortricid Isotrias penedana sp. n., of the subfamily Chlidanotinae tribe Polyorthini, collected in Serra da Peneda, Portugal, is described. Serra da Peneda, is in the Peneda-Gerês National Park located in the north-western region of Portugal, in the old province of Minho, now in the district of Viana do Castelo. The Peneda-Gerês National Park presents remarkable biological, geological and archaeological features. The foothills of the Serra do Gerês along with the foothills of the Serra da Cabreira constitute the frontier between the Euro-Siberian and Mediterranean regions, which confers on Peneda-Gerês a floral and phytogeographic importance. Vegetation coverage of Serra da Peneda, Serra do Gerês, Serra Amarela and Serra do Soajo, as well as the Mourela and Castro Laboreiro plateaus, is dominated by four distinct biomes: oak forest, scrubland, marshy meadows and riparian vegetation. Climatically the area is strongly influenced by the Atlantic, resulting in the highest rainfall in Portugal. Isotrias penedana sp. n. MATERIAL EXAMINED. 1 male, holotypus, labelled as follows: Serra da Peneda, north-west Portugal, June 2012, leg. Martin Corley; 3 males, paratypus, Serra da Peneda, north-west Portugal, June 2012, leg. Martin Corley. ADULT. Alar expanse, male 16-20 mm (Figure 1). Antenna greenish brown. Head and palpi light greenish-olive brown. Frons and vertex concolorous with palpus. Thorax and tegula light greenish-brown. Forewing ground colour whitish-creamy with yellowish-brown or amber spots. Strigulation dense, more or less fine, yellow to amber- ochreous. Fasciae almost completely atrophied or indistinct. Cilia whitish-ochreous with two dark bands. Hind wing pale greenish, distally greenish, cilia whitish with pale grey scales. MALE GENITALIA (Figures 2-6). Tegumen reported in Figure 3; uncus rather slender with terminal rounded plate in apical portion; dorsal edge of uncus gradually curved downward. Socius short and broad, covered with long setae. Gnathos long; arm of gnathos strongly expanding terminally; spines of outer surface of gnathos arm atro- phying (Figure 4). The valva is subrectangular, broad and moderate- ly elongated provided with a long sacculus terminating in one or two ventral spines; the transformed setae on inner surface of valva are numerous. Costa of valva hardly concave basally (Figure 5). External edge of cucullus slighly arched. Juxta linked with valva; transtilla broad, tapering, medially plate provided with a pair of sublateral fun- nel-shaped processes directed proximally. Aedeagus long and simple, pointed, weakly sclerotized in distal part; with fairly long coecum penis (Figure 6). FEMALE GENITALIA. Unknown. DISTRIBUTION. Known only from three sites in Serra da Peneda and the Castro Laboreiro plateau, Minho, north-west Portugal. HOST. Unknown. BIOLOGY. Males were found flying in the afternoon or early evening in mid-June in small sloping marshy meadows at altitudes from 770 m at Podre to 1180 m at Portos. The vegetation in these meadows was rich and varied, including a range of graminoids, Carex and Juncus species, together with Centaurea sp., Cirsium dissectum, Achillea millefolium, Conopodium majus, Lotus uliginosus, etc. In every case Correspondence: Pasquale Trematerra, Università degli Studi del Molise, Dipartimento di Agricoltura, Ambiente e Alimenti, via de Sanctis, 86100 Campobasso, Italy. E-mail: trema@unimol.it Key words: Isotrias penedana sp. n., Lepidoptera Tortricidae, Chlidanotinae, Polyorthini, new species, Portugal. Acknowledgements: the author would like to express his thanks to Jozef Razowski (Poland), Martin Corley (England) and to Gian Mario Fazzini (Italy) for providing the study material. Received for publication: 31 October 2012. Revision received: 20 December 2012. Accepted for publication: 21 December 2012. ©Copyright P. Trematerra, 2013 Licensee PAGEPress, Italy Journal of Entomological and Acarological Research 2013; 45:e1 doi:10.4081/jear.2013.e1 This article is distributed under the terms of the Creative Commons Attribution Noncommercial License (by-nc 3.0) which permits any noncom- mercial use, distribution, and reproduction in any medium, provided the orig- inal author(s) and source are credited. Journal of Entomological and Acarological Research 2012; volume 44:eJournal of Entomological and Acarological Research 2013; volume 45:e1 Jear_2013_1:Hrev_master 23/04/13 09.55 Pagina 1 No n c om me rci al us e o nly [page 2] [Journal of Entomological and Acarological Research 2013; 45:e1] Article Figure 1. Isotrias penedana sp. n., adult. Figure 2. Isotrias penedana sp. n., male genitalia. Figure 3. Isotrias penedana sp. n., male genitalia. Tegumen laterally. Figure 4. Isotrias penedana sp. n., male genitalia. Tegumen frontally. Figure 5. Isotrias penedana sp. n., male genitalia. Valva. Figure 6. Isotrias penedana sp. n., male genitalia. Aedeagus. Jear_2013_1:Hrev_master 23/04/13 09.55 Pagina 2 No n c om me rci al us e o nly there were some shrubs of Genista florida at the drier margins of the meadows. REMARKS. The western Palaearctic genus Isotrias Meyrick, 1895, con- sists of 9 species, 8 known from Europe and one from North Africa (Lucas, 1954; Trematerra, 1993; Razowski, 1984, 1987, 2002; Brown, 2005). Isotrias cuencana (Kennel, 1899), present in Spain (Albarracín, Cuenca, Guadalaviar, Las Palomas, Monteagudo de las Salinas, Torres de Albarracín); I. huemeri Trematerra, 1993, found in South Italy (Monti del Pollino); I. hybridana (Hübner, 1817) found in Europe, excluding the northern territories: Portugal, Spain, France, Belgium, Germany, Poland, Austria, Italy, Czech Republic, Slovakia, Slovenia, Croatia, ex Yugoslavia, Bosnia and Herzegovina, Macedonia, Albania, Hungary, Bulgaria, Greece and Ukraine; I. joan- nisana (Turati, 1921) distributed in Central and South Italy, reported also for France and Spain (?); I. martelliana Trematerra, 1990, from South Italy (Monti del Pollino, Cozzi dell’Anticristo); I. penedana Trematerra, 2013, from Serra da Peneda, north-west Portugal; I. rec- tifasciana (Haworth, 1811), European species distributed from British Islands and France to Denmark and Greece, East Europe and Asia Minor (?); I. stramentana (Guenée, 1845), present in South West Europe: Spain, France, Switzerland, Germany, Italy, Croatia; I. buckwelli Lucas, 1954, cited from Morocco. According to Razowski (1984, 1987) the genus Isotrias requires a thorough revision, the differences between the species are slight especially in the genitalia. The external characters are in many cases of importance, however in specimens from the same locality there are dark and pale examples. DIAGNOSIS. The new species I. penedana differs from other species of the genus Isotrias by shape of forewing and the male genitalia. In the new species forewing markings are completely atrophied or indis- tinct. Socii are short and broad, covered with long setae; costa of valva is hardly concave basally. The type specimens of I. penedana are deposited in the Trematerra Collection, University of Molise, Campobasso, Italy, and one paratype in the private collection of Martin Corley, Farington, England. ETYMOLOGY. The new species is named after Serra da Peneda, the area from which the type series comes. References BROWN J., 2005 - World catalogue of insects. Volume 5. Tortricidae (Lepidoptera). - Apollo Books, Stenstrup: 1-741. LUCAS D., 1954 - Nouveaux Lépidoptères Nord-Africains. - Bull. Soc. Sci. Nat. Phys. Maroc. XXXIV: 35-39. RAZOWSKI J., 1984 - Palaearctic Polyorthini (Lepidoptera, Tortricidae). - Acta Zoolog. Cracov. 27: 287-298. RAZOWSKI J., 1987 - The genera of Tortricidae (Lepidoptera). Part I: Palaearctic Chlidanotinae and Tortricinae. - Acta Zoolog. Cracov. 30: 141-355. RAZOWSKI J., 2002 - Tortricidae of Europe. Volume 1. Tortricinae and Chlidanotinae. - Frantisek Slamka, Bratislava: 1-247. TREMATERRA P., 1993 - Isotrias huemeri sp. n. (Lepidoptera Tortricidae) from southern Appennine. - Boll. Zool. Agr. Bachic. Ser. II 25: 11-17. [Journal of Entomological and Acarological Research 2013; 45:e1] [page 3] Article Jear_2013_1:Hrev_master 23/04/13 09.55 Pagina 3 No n c om me rci al us e o nly