Oromena relinquenda, (Walker, 1858)

Behounek, G., Han, H. L. & Kononenko, V. S., 2013, Revision of the genus Ortopla Walker, [1859] with description of two new species from Southeast Asia (Lepidoptera, Noctuidae, Pantheinae). Revision of Pantheinae, contribution X, Zootaxa 3746 (2), pp. 240-256 : 247-248

Orthopla relinquenda (Walker, 1858)

(Figs 14, 15, 32–35, 45, 52, 53)

Briada relinquenda Walker, 1858 , List of the Specimens of lepidopterous Insects in the Collection of the British Museum 15: 1802. Type-locality: [ India], North Hindustan. Type female, NHM (BMNH)].

References: Poole 1989:745 ( Ortopla , comb. n.); Kononenko & Pinratana 2005: 131, Pl. 38:6 ( Ortopla nr. reliquenda ).

Material examined. Types. Photograph of the type from coll. NHM. Other material examined. CHINA: 1 male, Prov. Yunnan, Xishuangbanna Dai, aut. Pref. Puwen, Simao, 900 m, 30 km SSW, 22°30’N, 100°42’E, Brechlin R. loc. collector leg., ex coll., 16.iii.–10.iv.2000, slide 8062 male (GB/ZSM); 1 male, Prov. Yunnan, Simao Distr., Mangxi Ba-Mts., Simao City, 18 km S., 1280 m, 22°28’N, 101°01’E, Brechlin R. leg., 26.ii.– 20.iii.1999, slide 7332 GB male (GB/ZSM); 1 male. Prov. Yunnan, Xishuanabang Jing Fong, Q Dong, leg., 15.vii.2002 (PG); 1 female, Prov. Guizhau, Jinlin Shan, Zunyi City, 2200 m, 27°42’N, 106°55’E, Ying et al. leg., ix.2001, slide GB 12012 female (HS); 1 male, Prov. Sichuan, Donglin Shan, Muli, 2800 m, Ying et al. leg, vii.2002, slide GB 12011 male (HS); 1 male, Prov. Hubei, Changyang, Wushangin, Wen leg. vii.1998, slide GB 12036 male (WS); 1 male, Prov. Guangxi, Dayao Shan, Longcheng, 1800 m, Mooser J. ex coll. 10.vii.2002 (PG); INDIA: 1 male, Darjeeling, coll. Atkinson, Staudinger coll. No. 346, slide GB 12046 male (NKM [MNHU]); MYANMAR: 1 female, Shan State, Pindaya Area, Mt. Moe-Lone, 2030 m, Löffler S. leg., 12.ii.2005, slide GB 12009 (HS); THAILAND: 1 male, Prov. Chiang Mai, Doi Phahompok, Mae Ai, 16–20 km NW, 1400–2200 m, 20°116’ N, 99°10’E, T. Ihle leg., 4.–10.iii.2003, slide 7330 male (GB/ZSM); 1 male, Prov. Chiang Mai, Wiang Pa Pao, 19°21N, 98°30’E, Cotton leg., 15.vii.1988, slide GB 12038 male (WS); 1 female, Prov. Chiang Mai, Doi Inthanon, 98°30’E, 18°43’N, Cotton leg. 9.x.1988, slide 12041 female (WS); 1 female, Prov. Chiang Mai, Doi Pui, Cotton leg., 9.x.1989, slide GB 12042 female (WS); 2 males, Prov. Chiang Mai, Doi Angkhang, Fang, 1400–1600 m, 20°033’N, 99°100’E, T. Ihle leg., 12.–16.ix.2007, slides 8059, 8060 males, ID No. BC ZSM Lep 58644 and 58645 (GB/ZSM); 1 male, Prov. Chiang Mai, Hang Dong, 18°40’N, 98°55’E, collector unknown, 19.x.1986, slide GB 12039 male (WS); 1 female, Prov. Chiang Mai, Doi Inthanon, 18°43N, 98°30’E, collector unknown, 27.vi.1987, slide 12060 female (WS); 1 male, Prov. Chiang Mai, Doi Inthanon Nat. Park, 31 km N Chom Tong, 136 m, (Bergwald), 18°34’N, 98°34’E, Brechlin R. leg., 24.v.–6.vi.1998 (GB/ZSM); 1 male, Prov. Chiang Mai, Doi Phahompok, Mae Ai, 16–20 km NW, 1400–2200 m, 20°11’67 N, 99°10’00 E, T. Ihle leg. 18.vii.2005, slide 8058 male, ID No. BC ZSM Lep 59637 (GB/ZSM); 1 female, Prov. Phrae, Wang Chin, 19°09’N, 100°10’EE, Cotton leg., 21.xii.1988. slide 12040 female (WS); VIETNAM: 1 male, Prov. Lao Cai, Tonkin, Prov. Lao Cai, Tonkin, 1500–1800 m, Chapa, (Sek. Wald/Kulturland), 22°20’N, 103°40’E, Sinyaev V. & E. Afonin leg., 20.– 30.x.1994 (WS); 1 male, 2 females, Prov. Lao Cai, Tonkin, Prov. Lao Cai, Tonkin, 1500–1800 m, Chapa, (secondary and primary forest), 22°20’N, 103°40’E, Sinjaev V. & loc. collector leg., iv.1995, slides 7329 male, 7373, 7374 females (GB/ZSM); 2 males, Prov. Vinh Phu, Tam Dao, 60 km NW Hanoi, 23°34’N, 105°20’E, Siniaev V. leg., iv.1995, slides 7333, 8061 males (GB/ZSM); 1 male, Prov. Vinh Phu, Tam Dao, 900 m, 21°34’N, 105°20’E, Skuta Z. leg. 6.–9.v.1990, slide SP 569 female (WS); 1 female, Hoeng Lien Son, Yen Bai, 200 m, Sausa E leg., 5.v.1990, slide GB 12010 female, (HS); 1 male, Moc-shan 60 km SE, 1400 m, 20°50’N, 104°50’E, Sinjaev V. & loc. collector leg., 7.–15.iv.1995, slide 8069 male (GB/ZSM).

Diagnosis. Adult (Figs 14, 15, 32–35). The species differs from its congeners by stronger bipectinate antennae of male, short palps of male with tiny 3rd segment, yellowish-brown colouration of forewing, more distinct wing pattern and details of male and female genitalia. Wingspan male 46–52 mm, female 55–59 mm. Palps of male relatively short, with 3rd segment about ¼ length of 2nd, covered with dense brown mixed with whitish scales, longer in frontal side; palps of female with 3rd segment longer than in male, about 1/3 length of 2nd. Antennae of male shortly bipectinate, ciliated, female antennae thinner than in male, strongly fasciculate, ciliated. Head and thorax covered with brown mixed with pale brown hair-like scales; tegulae and patagia bordered with pale-whitish. Ground colour of forewing yellowish-brown with suffusion of whitish or pale greyish scales; wing pattern typical for the genus, formed by pale whitish- brown dentate basal, subbasal and antemedial lines; subbasal and antemedial fields darker than background; medial field with wide diffused medial shadow; reniform as short vertical streak; subterminal line dentate, broken. Hindwing pale yellowish-brown or yellowish basally, with relatively narrow waved brown subterminal band and wide brown terminal field. Male genitalia. ( Fig. 45 ) Uncus moderate, about half length of tegumen, curved and hooked apically; compared with other Ortopla species it is not curved and not extended basally; scaphium rather narrow, extended apically, but its apex is not bifurcated as in other species; valva somewhat longer than on other Ortopla , with parallel margins; aedeagus short and rather broad with vesica bearing basal and medial diverticula and medial patch of minute scobination. Female genitalia. ( Figs 52, 53 ) Differs from other Ortopla species by wider ductus bursae, stronger bulla in joining of ductus and bursa and by pyriform shape of bursae.

Distribution. *Southwest China (Provinces Yunnan and Sichuan), North India ( Hindustan, West Bengal), Myanmar, Thailand (Provinces Chiang Mai and Kanchanabury), *North Vietnam (Provinces Lao Cai, and Tonkin), Malaysia, Borneo; Indonesia (Sumatra). The species occurs in secondary and primary forests at elevation 900– 2500 m. Flight period from February to November.

Figures

FIGURES 42 – 45. Ortopla spp., male genitalia. 42 — O. longiuncus, China, holotype, slide 12007 (ZSM); 43 — O. longiuncus, China, paratype, slide HHL (NEFU); 44 — O. noduna, Thailand, slide 12157 (FMNH); 45 — O. relinquenda, Thailand, slide 7330 (GB).

FIGURES 46 – 53. Ortopla spp., female genitalia. 46 — O. iarbasalis specimen, misidentified by Moore as reliquenda, slide 12059 (NKM); 47 – O. lindsayi, Thailand, slide 12034 (WS); 48 — O. lindsayi, Vietnam, slide 12033 (WS); 49 — O. witti, Philippines, Luzon, paratype, slide 12044 (NKM); 50 — O. longiuncus, Vietnam, paratype, slide 12037 (WS); 51 — O. noduna, Myanmar, slide 12016 (AS); 52 — O. relinquenda, Vietnam, slide 12010 (AS); 53 — O. relinquenda, Thailand, slide 12060 (WS).