Protarchanara mythimnoida Volynkin, Matov & Gyulai

Volynkin, Anton V., Matov, Alexej Yu., Gyulai, Péter & Behounek, Gottfried, 2014, A revision of the genus Protarchanara Beck, 1999 with description of a new genus and three new species (Lepidoptera, Noctuidae, Xyleninae), Zootaxa 3755 (2), pp. 165-178 : 170

Protarchanara mythimnoida Volynkin, Matov & Gyulai , sp. n.

( Figs 19–22 , 41–43, 50 )

Type material. Holotype: male, Mongolia, Kobdosky [Hovd] aimak, Bodonchin-Gol riv., 12 km SW Altai (low.). Zajtsev [leg.]. 22.vii. [1]970 [in Russian] / Slide 0092 Matov (Coll. ZISP). Slide 0092 Matov; Paratypes: 2 males, 16.vii.2009, W. Mongolia, Govi-Altai aimak, Dzhungarian Gobi, Alag-Nuur lake, h= 1300 m, leg. R.V. Yakovlev & E.V. Guskova (Coll. AVB); 1 male, 1 female, Kazakhstan, Alma-Ata range, Ili, Pristan Dubinskaya, 550 m, 43°45’ N, 80°13’ E, 15–18.vi.1993. leg. V.A. Lukhtanov (Coll. PGM). Slides AV0417, AV0470 Volynkin, 6755m Varga (males), 623f Gyulai (female).

Diagnosis. The new species is well distinguished from the two known species of the genus being closer to P. brevilinea . Externally P. mythimnoida differs from it by less acute apex of forewing and straw yellow wing colouration. P. abrupta and P. mythimnoida occur sympatrically and the latter differs by elongate straw yellow forewings and an almost complete reduction of the wing pattern. The male genitalia differ from P. brevilinea by shorter, subtriangular penicular lobes, wider juxta, longer vinculum, wider and shorter basal part of valva, larger clavus, somewhat larger cucullus, larger aedeagus and in vesica morphology: vesica is not curved ventrally, directed forward, subbasally is larger, broader and not sclerotised, finely membranous (in P. brevilinea vesica curved ventrally, subbasally narrower, sclerotised); from P. abrupta differ by longer and wider uncus, subtriangular penicular lobes, wider juxta, V-shaped vinculum, wider basal part of valva, larger clavus and cucullus, and in vesica morphology: in P. abrupta vesica is bulbous basally, its ventral and dorsal cornuti are curved. The female genitalia differ from P. brevilinea by larger papillae anales, broader apophyses anteriores and ostium bursae, larger, conical, more sclerotised ductus bursae; from P. abrupta differ by much larger papillae anales, presence of rods between the papillae anales, wider and shorter apophyses anteriores, broader ostium bursae, wider sclerotised margin of antrum, much longer and broader conical ductus bursae, absence of sclerotisation of appendix bursae.

Description. Adult ( Figs 19–22 ). Wingspan 27–32 mm, length of forewing 13–14 mm. Head, thorax and abdomen pale, straw yellow; abdomen much paler. Ground colour of forewing straw yellow. Pattern reduced. Reniform reduced, can be present as a grey suffusion, which is regularly darker in its lower field. Submarginal area with a row of black dots at veins. Cilia straw yellow. Hindwing straw yellow, paler than the forewing. Cilia pale, yellowish. Male genitalia ( Figs 41–43 ). Uncus long, apically rounded. Tegumen short, penicular lobes moderately large. Vinculum short, V-like. Valva elongate. Clavus rounded, smooth. Cucullus well separated, large, subtrigonal, curved, corona well developed. Proximal part of valva wide, distally extended. Costa well sclerotised, costal process long, thin, apically pointed. Aedeagus relatively short, slightly curved distally. Vesica membranous, distally directed, with lateral basal diverticulum having two long, thin cornuti. Female genitalia ( Fig. 50 ). Ovipositor short, papillae anales moderately sclerotised. Sclerotised rods between papillae anales presented. Apophyses anteriores shorter than posteriores. Ostium bursae broad, antrum with narrow sclerotised margin. Ductus bursae broad, noticeably sclerotised, conical, strongly narrowed anteriorly; appendix bursae small, bulbous, membranous; corpus bursae membranous, very long, narrow.

Distribution. South-East Kazakhstan and Western Mongolia. The species occurs in hygrophilous biotopes (halophilous lakes and rivers shores). The two known specimens from Kazakhstan have somewhat darker, ochreous forewings, with darker brown suffusion in the reniform stigmata, but no mentionable differences in the male genitalia have been found.

Etymology. The species is named after the genus Mythimna Ochsenheimer, 1816 ( Noctuidae , Hadeninae ), for having similar habitus with some species of Mythimna .

Figures

FIGURES 11 – 20. Protarchanara spp., adults. 11, P. abrupta, male holotype (ZISP); 12, P. abrupta, male, lectotype of Sidemia johni (NKMB); 13, P. abrupta, female, paralectotype of Sidemia johni (NKMB); 14, P. abrupta, male, lectotype of Namangana contumax (NKMB); 15, P. abrupta, male, paralectotype of Namangana contumax (NKMB); 16, P. abrupta, male, NW China, Xinjiang (PGM); 17, P. abrupta, male, SW Mongolia (AVB); 18, P. abrupta, male, SW Mongolia (GRB); 19, P. mythimnoida, holotype male, SW Mongolia (ZISP); 20, P. mythimnoida, paratype male, SW Mongolia (AVB).

FIGURES 21 – 30. Protarchanara spp., adults. 21, P. mythimnoida, paratype male, SE Kazakhstan (PGM); 22, P. mythimnoida, paratype female, SE Kazakhstan (PGM); 23, P. brevilinea brevilinea, male, England, Norfolk (ZISP); 24, P. brevilinea brevilinea, male, W. Siberia, Novosibirsk area (HNHM) (photo by V. S. Kononenko); 25, P. brevilinea brevilinea, female, W. Kazakhstan (PGM); 26, P. brevilinea brevilinea, female, England (HNHM); 27, P. brevilinea impudica, lectotype male (NKMB); 28, P. brevilinea impudica, paralectotype female (NKMB); 29, P. brevilinea impudica, male, Russian Far East, Amur (ZISP); 30, P. brevilinea impudica, male, Russian Far East, South Primorye (ZISP).

FIGURES 37 – 42. Protarchanara spp., male genitalia. 37, P. abrupta, holotype, " Sir. ", slide 0342 Matov; 38, P. abrupta, lectotype of Namangana contumax, slide M. B. 310 Boursin; 39, P. abrupta, lectotype of Sidemia johni, slide M. B. 338 Boursin; 40, P. abrupta, SW Mongolia, slide AV 0470 Volynkin; 41, P. mythimnoida, holotype, W. Mongolia, slide 0092 Matov; 42, P. mythimnoida, paratype, W. Mongolia, slide AV 0470 Volynkin.

FIGURES 43 – 52. Hydredes and Protarchanara spp., male (Figs 43 – 46) and female (Figs 47 – 52) genitalia. 43, P. mythimnoida, paratype, SE Kazakhstan, slide 6755 m Z. Varga; 44, P. brevilinea brevilinea, W Siberia, prep Volynkin; 45, P. brevilinea impudica, lectotype, slide 12127 GB Behounek; 46, P. brevilinea impudica, Russian Far East, prep. Matov; 47, H. yakobsoni, paratype, SE Kazakhstan, slide RL 10728 f L. Ronkay; 48, H. shchetkini, paratype, slide 1377 f P. Gyulai; 49, P. abrupta, SW Mongolia, slide AV 0755 Volynkin; 50, P. mythimnoida, paratype, SW Kazakhstan, slide 623 f P. Gyulai; 51, P. brevilinea brevilinea, W. Siberia, prep. Volynkin; 52, P. brevilinea impudica, paralectotype, slide 12153 GB Behounek.