Macohasa orientalis ( Hampson, 1905 ) Dubatolov & Volynkin & Kishida, 2018

Dubatolov, Vladimir V., Volynkin, Anton V. & Kishida, Yasunori, 2018, Review of the Prabhasa Moore, 1878 genus-group (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4407 (3), pp. 383-400 : 389-390

Macohasa orientalis ( Hampson, 1905) , comb. nov.

( Figs. 9–12 , 27 , 38 )

Phaeosia orientalis Hampson, 1905 , The Annals and magazine of natural history, (7)15: 433 (Type locality: [ Malaysia, SaraWak] “Borneo, Kuching”).

= Ilema pentaspila Hampson, 1907 ; The Annals and magazine of natural history, (7)19: 231 (Type locality: “ Singapore ”). Phaeosia orientalis: Hampson 1914: 478 , fig. 97; Draudt 1914: 212; Strand 1922: 530. Ilema pentaspila: Hampson 1914: 494 –495.

Lithosia pentaspila: Draudt 1914: 208 .

Eilema pentaspila: Strand 1922: 575 ; Fang 1982: 199, fig. 1446.

Macotasa orientalis: HolloWay 1982: 210 ; Fang 2000: 237 –238; HolloWay 2001: 306, fig. 51, pl. 3, fig. 51; Černý & Pinratana 2009: 138, pl. 27, fig. 277a, 277b; Bucsek 2012: 119.

Type material examined. Holotype of Phaeosia orientalis ( Fig. 9 ): ♂, printed label “Borneo. Kuching. 1899 [handwritten]. R. Shelford [leg.], 1902–115” / handwritten label “ Phaeosia orientalis , type ♂, Hmpsn.” / printed round label with red border “Type” / blue label “ Arctiidae genitalia slide No. [printed] 2865 ♂ [handwritten]” / printed label with QR-code “NHMUK010401704” (Coll. NHMUK); holotype of Ilema pentaspila ( Fig. 10 ): ♀, printed label “Singapore, H.N. Ridley, 1900–116” / handwritten label “ Ilema pentaspila , type ♀, Hmpsn.” / printed round label with red border “Type” / printed label with QR-code “NHMUK010401785” (Coll. NHMUK).

Other material examined. THAILAND: 1 ♂, ProV. Nakhon Ratchasima (Korat), Wat Soeng Sang , h= 250 m, light, 14°16'40'' N, 102°23'29'' E, 7–8.VI.2010, leg. V. Zinchenko, A. KorshunoV (Coll. SZMN) ; VIETNAM: 2 ♀, Dong Nai, Vinh Cuu Nat. Res., Ma Da, Rang Rang , 11.34704°N, 107.01208°E, h= 78 m, 23–25.VI.2011 (Coll. SZMN) ; 1 ♂, Dong Nai, Tan Phu, Nam Cat Tien, Da Ko , 11.46361° N, 107.46135° E, h= 170 m, 08–10.VII.2011, leg. A. Solovyev, S. Pugaev, S. Nedoshivina (Coll. SZMN) ; 1 ♀, Thanh Hoa Prov., Thuong Xuan Distr., Xuan Lien NR, anthropog. 19°52'N 105°14.28'E, 130 m, 1–2.XII.2012, leg. V. Zolotuhin (Coll. SZMN) ; 1 ♀, Ninh Binh ProV., Nho Quan Distr., Cuc Phuong NP, 140 m 20°15'N 105°43'E, 5.XII.2012, leg. V. Zolotuhin (Coll. SZMN) ; MALAYSIA: 1 ♂, 12 ♀, Pahang distr., Endau Rompin State Park, Camping by the Kincin RiVer , 50 m, 2°37'10.4'' N, 103°20'10.9'' E, 1–13.III.2011, leg. Karol Bucsek, slides WMW 31775 Volynkin (♂) , MWM 31776 Volynkin (♀) (Coll. MWM/ ZSM) ; 1 ♀, Sabah: Poring, 1800’, E of Mt. Kinabalu , 20–23.I.1976, primary forest, E.W. Classey, B.M.1976–116 (Coll. NHMUK) ; INDONESIA: 1 ♂, [West Kalimantan proVince] Dutch West Borneo, 85 miles aboVe Pontianak, Simons et Meligan (Sanggan), eX Janson , April 1909 (Coll. NHMUK) ; BRUNEI: 1 ♀, LP 298, Temburong EXp., 10.IX.1978, Lt. Col. M.G. Allen M.V. trap (Coll. NHMUK) .

Description. Male ( Figs. 9 , 11 ). Forewing length 11–12 mm. Forewing ground color dark yellow, with the dorsum noticeably conVeX in basal half; costal margin with one black spot (sometimes three more spots of the row are Visible between cell and dorsal margin); central cell with a long fold with androconial scales; hindwings yellow. Male genitalia ( Fig. 27 ). Uncus simple, long, curVed downwards at apical 1/3; distal section of ValVe with straight costal and Ventral margins, apeX rounded from costa to outer margin, but Ventral angle is slightly rounded; harpelike fold U-shaped, not longer than the base of distal saccular process; distal saccular process long (about apical 1/ 3 of the whole sacculus length), more or less broad, with apeX curVed dorsally, not reaches cucullus apeX. Aedeagus straight, short; Vesica with three subbasal diVerticula and one long and C-like curVed distal diVerticulum with apical spine; Vesica ejaculatorius situated subbasally. Female ( Figs. 10 , 12 ). Forewing length 14 mm. Forewing ground color dark yellow, with a row of 5 black spots, the middle one shifted outwards; hindwing pale yellow. Female genitalia ( Fig. 38 ). OVipositor short and broad; apophyses long and thin, apophyses anteriores one and a half times longer than apophyses posteriores; ductus bursae short, narrow, membranous, with large, round, bulbous Ventral plate; corpus bursae elongated sack-like, narrow, membranous, with one bar-shaped signum; appendiX bursae short, bulbous, situated latero-posteriorly.

Remarks. By the male genitalia structure, this species surely belongs to the new genus. The male genitalia structure is similar to that of the type species M. cernyi sp. nov., but the harpe-like fold is narrower, the sacculus apeX is almost straight and longer, and the apical diVerticulum of Vesica is longer, C-shaped and has an apical spine. The female genitalia differ from those of M. cernyi sp. nov. by the shorter apophyses anteriores and posteriores, the much smaller postVaginal plate, the corpus bursae longer and pear-like, and the smaller appendiX bursae.

Distribution. India (Karnataka) ( Singh & Singh 2013; Kirti & Singh 2015), Myanmar (formerly – Burma) ( Holloway 1982); China (Fujian, Yunnan) ( Fang 1982; 2000); Thailand (Černý & Pinratana 2009); Vietnam (DubatoloV 2012); Malaysia (Malakka Peninsula and Borneo) ( Holloway 2001; Bucsek 2012); Singapore ( Hampson 1914); Indonesia (Sumatra, Borneo) ( Strand 1922); Brunei.

Figures

FIGURES 1–10. Prabhasa and Macohasa spp.: adults. 1, P. venosa, ♂ syntype, Darjeeling (©NHMUK); 2, P. venosa, ♀ syntype, Darjeeling (©ZFMK); 3, P.venosa, ♂, [India, Meghalaya] Khasis (©NHMUK); 4, M.cernyi, holotype ♂,N Vietnam, Bac Giang prov. (SZMN); 5, M. cernyi, paratype ♂, Thailand, Kanchanaburi prov. (CKC); 6, M. cernyi, paratype ♀, N Vietnam, Dien Bien prov. (MWM/ZSM); 7, M. cernyi, paratype ♂, Thailand, Phetchabun prov. (CKC); 8, M. cernyi, paratype ♀, Thailand, Phetchabun prov. (CKC); 9, M. orientalis, holotype ♂, Borneo (©NHMUK); 10, M. orientalis, holotype ♀ of pentaspila, Singapore (©NHMUK).

FIGURES 11–19. Macohasa and Chinasa spp.: adults. 11, M. orientalis, ♂, Malaysia, Malacca Peninsula (MWM/ZSM); 12, M. orientalis, ♀, Malaysia, Malacca Peninsula (MWM/ZSM); 13, M. tetraspila, holotype ♂, Thailand, Chantaburi prov. (MWM/ZSM); 14, M. tetraspila, paratype ♀, Thailand, Chantaburi prov. (MWM/ZSM); 15, M. dimorpha, syntype ♂, Philippines, Luzon (©NHMUK); 16, M. dimorpha, syntype ♀, Philippines, Luzon (©NHMUK); 17, Ch. costalis costalis, holotype ♂, N China (©NHMUK); 18, Ch. costalis costalis, ♂, China, Zhejiang (MWM/ZSM); 19, Ch. costalis costalis, ♀, China, Guangdong (SZMN).

FIGURES 27–29. Macohasa spp.: male genitalia (genital capsules in ventral vieW). 27, M. orientalis, Malaysia, slide MWM 31775 Volynkin; 28, M. tetraspila, holotype, Thailand, Chantaburi prov., slide MWM 33812 Volynkin; 29, M. dimorpha, Philippines, PalaWan, slide MWM 31777 Volynkin.

FIGURES 36–41. Lithosiina spp.: female genitalia (ventral vieW). 36, Prabhasa venosa, [India, Meghalaya] Khasis, slide BMNH(E) Arct-4557f HolloWay (©NHMUK); 37, Macohasa cernyi, paratype, N Vietnam, slide MWM 31774 Volynkin; 38, Macohasa orientalis, Malaysia, slide MWM 31776 Volynkin; 39, Macohasa tetraspila, paratype, Thailand, Chantaburi prov., slide AV4186m Volynkin; 40, Macohasa dimorpha, Philippines, PalaWan, slide MWM 31778 Volynkin; 41, Macotasa biplagella, slide BMNH(E) Arct-2849 (©NHMUK).