Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 86. (Budapest 1994)

Gyulai, P. ; Ronkay, L.: A new Amphipoea Billberg, 1820 species from West Siberia (Lepidoptera, Noctuidae)

red-brownish lines; subterminal a pale brownish shadow. Medial line conspicuous, represented by a diffuse, dark grey-brown stripe forming almost an Y-mark, its upper part consists of two streaks bordering reniform on inner and outer sides and fused below cell to a common stripe running to inner margin. Orbicular and reniform stigmata present, former small, rounded, filled with orange-brown, its outline often indistinct, latter large, orange-yellowish, more or less quadrangular; claviform regularly deleted. Terminal line darker brown, cilia light pinkish-brown. Hindwings greyish-brown, cellular lunule fine, well-discernible, marginal field suffused with darker brown; cilia pale pinkish. Underside of wings faded ochreous-pinkish, ghosts of stigmata, a pale transverse line and discal spot(s) usually clearly visible. - Male genitalia (Figs 1-2): uncus long, relatively strong, tegumen broad, rather low. Fultura inferior a large, pear-shaped plate, vinculum sclerotized, V-shaped. Valva elongated with more or less parallel margins, angled at distal third. Cucullus relatively narrow with apex slightly pointed, corona and crista well-developed. Sacculus moderately long, clavus sclerotized, long, wedge-shaped. Ampulla minute, basal part of harpe flattened, croissantshaped, apical part long, sclerotized, terminated in a characteristic furca having almost equal, short arms. Aedeagus long, cylindrical, slightly arcuate, carina with a stronger plate on ventral side. Vesica spacious, ellipsoid, ductus ejaculatorius projected ventro-laterally. Its walls membranous with very fine scobination, basal part with a small, granulosely sclerotized, semiglobular protuberance on ventral side and a bundle of long, spiniform cornuti posterolaterally. Female: unknown. Diagnosis. The new species externally resembles the members of the fucosa-group and the asiatica-gxoup, the variation of the taxa belonging of these groups often has a very wide range with bigger or smaller overlaps of the related species. The typical features of A. bifurcata are the well-defined, dark grey-brownish, more or less Y-shaped medial stripe, the red-brownish ground colour with pinkish shining and the less striking, orange-yellowish reniform stigma; this combination of these elements is unusual within the two species-groups and suggests a need to check the genitalia. The distinctive features of the species are easily recognizable in the male genitalia. The configuration of the hatpe - bifurcate with short, almost equal, straight arms - is unique within the genus, with the exceptions of A. oculea (LINNAEUS, 1761) which has the harpe forming also a short furca but the arms of which are much thicker, stronger and apically acute and its base is significantly shorter and broader. The other members of the species-groups under discussion have the harpe either simple, long, wedge- or spine-like (A. chovdica GYULAI, Figs 2-6. Right valvae of Amphipoea species: 2 = Amphipoea bifurcata sp. n. Paratype male, Russia, W Siberia, Prov. Novosibirsk, Karasuk steppe, Krotovaia Lyaga, 13-20.08.1990, leg. DUBATOLOV & RONKAY; slide No. Gy 584 GYULAI, 3 = Amphipoea fucosa FREYER, Mongolia, Chovd aimak, coll. P. GYULAI, slide No. Gy. 203 GYULAI, 4 = Amphipoea sp., Russia, W Siberia, Prov. Novosibirsk, Karasuk steppe, Krotovaia Lyaga, 13-20.08.1990, leg. DUBATOLOV & RONKAY; slide No. 3130 RONKAY, 5 = Amphipoea chovdica GYULAI, Paratype, Mongolia, Chovd aimak, coll. P. GYULAI, slide No. Gy. 202 GYULAI, 6 = Amphipoea oculea LINNAEUS, Hungary, Jósvafő, coll. P. GYULAI, slide No. Gy. H-16 GYULAI