Macohasa cernyi 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 : 388-389

Macohasa cernyi Dubatolov, Volynkin & Kishida , sp. nov.

( Figs. 4–8 , 25–26 , 37 )

Prabhasa venosa: Černý & Pinratana 2009: 140 .

Type material. Holotype ( Figs. 4 , 25 ): ♂, N. Vietnam, Bac Giang ProV., Son Dong Distr. , Tay Yen Tu NR, cite 1, 21°11'N 106°43'E, 180 m, 22–25.XI.2012, V.V. Zolotuhin, slide AV 2408m Volynkin (Coll. SZMN) .

67 paratypes: VIETNAM: 1 ♂, same data as in holotype ( Coll. SZMN) ; 2 ♂, N. Vietnam, Cao Bang Prov., Phia Oak Mts., Phia Den Vill. , 1030 m, 22° 34' N 105° 52' E, 12-16.XI.2012, V.V. Zolotuhin, slide AV 2409 m Volynkin (Coll. SZMN) ; 3 ♂, N. Vietnam, Ninh Binh Prov., Nho Quan Distr., Cuc Phuong NP, 140 m 20°15'N 105°43'E, 3-5.XII.2012, V.V. Zolotuhin (Coll. SZMN) ; 1 ♂, 1 ♀, N Vietnam, 1200 m, Tuan-giao, street Lai-chau to Hanoi, 21°35' N, 103°25' E, 5–10.XI.1994, Schintlmeister leg., slides MWM 31773 Volynkin (♂) , MWM 31774 Volynkin (♀) (Coll. MWM/ZSM); 7 ♂, 2 ♀, [Lam Dong province] Đa Lat, Datan La , 1380 m, 11°54'10.6'' N, 108°26'59'' E, 29.IX.2013, leg. K. Černý, slides AV4200 ♂, AV4201 ♂, AV4202 ♀, AV4203 ♀ Volynkin (Coll. CKC); THAILAND: 1 ♂, 21–22.VIII.2009, Phitsanulok ProV., 18 km N Nakhon Tai Vil., h= 426 m, 17°15.7'N, 100°51.4'E, at light, V. Zinchenko, A. Korshunov [leg.], slide AV 2410 m Volynkin (Coll. SZMN) ; 29 ♂, 15 ♀, C. THAILAND, Phetchabun, 580 m, border of Nam Nao NP, 16°44,05´N, 101°23,14´E, 10.XI.2010, leg. K. Černý, slides AV4197 ♂, AV4198 ♂, AV4196 ♀, AV4199 ♀ Volynkin (Coll. CKC) ; 1 ♂, W. THAILAND, Kanchanaburi, Drei Pagoden Pass , 348 m, sec. forest, 15°18,401´N, 98°23,912´E, 21.IX.2008, leg. K. Černý (Coll. CKC) ; 2 ♂, W THAILAND, Kanchanaburi, Sri SaVad enV., 648 m, Sekundärwald , 14°49.534'N, 99°06.558'E, 30.XI.2007, leg. K. Černý (Coll. CKC) ; 1 ♂, W. THAILAND, Kanchanaburi, Sri Savad env., 543m, Sekundärwald , 14°49.313'N, 99°05.866'E, 22.IX.2008, leg. K. Černý (Coll. CKC) ; 2 ♂, W. THAILAND, Kanchanaburi, Sri Savad env., 749 m, Bergwald , 14°49.852'N, 99°06.412'E, 23–24.IX.2008, leg. K. Černý, slide AV4195 ♂ Volynkin (Coll. CKC).

Description. Male ( Figs. 4–5, 7 ). Forewing length 11–12.5 mm. Forewing ground color dark yellow (in light color form) or pale brown (in dark color form) with a darkening along costal Vein eXtending beyond discal Vein. Postdiscal band dark brown, reduced into costal dash and often to short dash in hind part of the wing. Forewing dorsum noticeably conVeX in basal half, its outer margin narrowly folded inwards. Hindwing yellow. Male genitalia ( Figs. 25–26 ). Uncus simple, long; distal section of ValVe with straight costal and Ventral margins, apeX broadly rounded from costa to outer margin, but Ventrally slightly rounded; harpe-like fold U-shaped, reached sacculus apeX; distal saccular process short, bulbed subapically, and with apeX curVed dorsally; aedeagus short, moderately broad, Vesica with 3 diVerticula and field of granulation, one of them is wide; Vesica ejaculatorius situated subbasally. Female ( Figs. 6, 8 ). Forewing length 12-14 mm. Forewing ground color dark yellow (in light color form) or pale brown (in dark color form), with a row of 5 black spots of different size and shape, the middle one shifted outwards; hindwings pale yellow. Female genitalia ( Fig. 37 ). OVipositor short and broad; apophyses long and thin, apophyses anteriores slightly longer than apophyses posteriores; ductus bursae short, narrow, membranous, with round, bulbous Ventral plate; corpus bursae long, narrow, pear-like, membranous, with one barshaped signum; appendiX bursae short, bulbous, situated latero-posteriorly.

Remarks. The species has two color forms occurring sympatrically. EXternally, male of the new species differs from M. orientalis by the narrower forewing, darker forewing ground color, smaller dark costal dash and presence of a short dash in the hind part of the wing; female differs from M. orientalis by the slightly smaller size and smaller black spots on forewing. The male genitalia structure is similar to that of M. orientalis , but the harpe-like fold is broader, the sacculus apeX is shorter and claw-like curVed, and the apical diVerticulum of Vesica is shorter, less curVed and has no apical spine. The female genitalia differ from those of M. orientalis by the longer apophyses anteriores and posteriores, the much larger postVaginal plate, the corpus bursae shorter and narrower anteriorly, and the larger appendiX bursae.

Distribution. The species is widespread in Thailand and Vietnam.

Etymology. The species name is dedicated to Dr. Karel Černý (Innsbruck, Austria), who firstly reported and illustrated the species for Thailand as Prabhasa venosa (Černý & Pinratana 2009) .

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 24–26. Prabhasa and Macohasa spp.: male genitalia (genital capsules in ventral vieW). 24, P. venosa, [India, Meghalaya]Khasis,slide BMNH(E) Arct-6589mVolynkin (©NHMUK); 25, M.cernyi, holotype,NVietnam, Bac Giangprov., slide AV2408m Volynkin;26, M.cernyi, paratype, Thailand, Kanchanaburi prov., slide AV4195m 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).