Macohasa dimorpha ( Hampson, 1918 ) 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 : 391-392

publication ID 10.11646/zootaxa.4407.3.6

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Macohasa dimorpha ( Hampson, 1918 )

comb. nov.

Macohasa dimorpha ( Hampson, 1918) View in CoL , comb. nov.

( Figs. 15–16 View FIGURES 11–19 , 29 View FIGURES 27–29 , 40 View FIGURES 36–41 )

Phaeosia dimorpha Hampson, 1918 , Novitates Zoologicae, 25: 98 (Type locality: “Philippines, Luzon, Mt. Makiling”). Phaeosia dimorpha: Draudt 1914: 212 ; Strand 1922: 529.

Macotasa dimorpha: HolloWay 1982: 210 ; HolloWay 2001: 306.

Type material examined. Syntypes: ♂ ( Fig. 15 View FIGURES 11–19 ), printed label “ Mt. Makiling , Luzon, Baker [leg.]” / handwritten label “ Phaeosia dimorpha , Type ♂, Hmpsn. ” / printed round label with red border “ Type H.T. ” / printed label “ 1917–37 ” / handwritten label “5195” / printed label with QR-code “ NHMUK010401705 View Materials ” (Coll. NHMUK) ; ♀ ( Fig. 16 View FIGURES 11–19 ), printed label “ Mt. Makiling , Luzon, Baker [leg.]” / handwritten label “ Phaeosia dimorpha , Type ♀, Hmpsn. ” / printed round label with red border “ Type H.T. ” / printed label “ 1917–37 ” / handwritten label “5349” / printed label with QR-code “ NHMUK010401706 View Materials ” (Coll. NHMUK) .

Other material examined: 2 ♂, 1 ♀, Philippines, 7–9.III.2000, Palawan, Napsan-Salakot, leg. Joggnath, slides MWM 31777 (♂) and MWM 31778 (♀) Volynkin (Coll. MWM/ ZSM); 1 m, Klondyke, subprov . Benguet, Luzon , 800 ft., 16.III.1912, A.E. Wileman, camp 1, slide BMNH (E) Arct-2868 ♂ (Coll. NHMUK).

Description. Male ( Fig. 15 View FIGURES 11–19 ). Forewing length 10–11 mm. Forewing ground color yellowish brown, with costa conVeX in subapical third and dorsum noticeably conVeX in basal half; costal margin with one antemedial black spot; central cell with a long and narrow fold with androconial scales; medial area posteriorly the Cu Vein with strong dark brown suffusion; hindwings ochreous. Male genitalia ( Fig. 29 View FIGURES 27–29 ). Uncus simple, long, basally broad, apically pointed, curVed downwards at apical half; scaphium broad, heaVily sclerotized; Vinculum elongated, more or less V-like, with pointed apeX; distal section of ValVe slightly curVed Ventrally, with narrowed and rounded apeX; harpe-like fold small, pimple-like; distal saccular process short, more or less broad, with apeX pointed and curVed dorsally. Aedeagus straight, long; Vesica broad, with three membranous subbasal diVerticula, one short, globular distal diVerticulum with granulation, and one long and basally curVed distal diVerticulum with granulation and one short apical spine; Vesica ejaculatorius broad, situated subbasally. Female ( Fig. 16 View FIGURES 11–19 ). Forewing length 12–13 mm. Forewing ground color dark yellow, with a row of 5 black spots, the middle one Very small, dot-like, sometimes absent; hindwing pale yellow. Female genitalia ( Fig. 40 View FIGURES 36–41 ). OVipositor short and broad; apophyses long and thin, of the same length; ductus bursae short, narrow, membranous, with large, Ventral plate V-like bilobate posteriorly; corpus bursae broad, sack-like, membranous, with one elliptical signum; appendiX bursae short, bulbous, situated latero-posteriorly.

Remark. Males of M. dimorpha differs clearly from those of other congeners by the narrower forewing, round costal spot, and broad area of dark suffusion in medial area; females of M. dimorpha differs from those of other congeners by the pale forewing and less curVed medial transVerse row of black spots. The male genitalia of M. dimorpha are similar to those of M. tetraspila , but differ by the pointed apeX of Vinculum, the distally narrower ValVe with a significantly narrower and slightly curVed apeX, the slightly smaller medial harpe-like fold, the slightly broader distal saccular process, presence of the third subbasal diVerticulum of aedeagus Vesica, the smaller but more heaVily scobinated globular distal diVerticulum, and the heaVily scobinated long distal diVerticulum with the apical spine presented. The female genitalia of M. dimorpha differ from those of M. tetraspila by the broader papillae anales, the longer apophyses posteriores, and the posteriorly bilobate Ventral plate of ductus bursae.

Distribution. The Philippines (Luzon, Mindanao ( Holloway 1982), Palawan).


Natural History Museum, London


Bavarian State Collection of Zoology














Macohasa dimorpha ( Hampson, 1918 )

Dubatolov, Vladimir V., Volynkin, Anton V. & Kishida, Yasunori 2018

Phaeosia dimorpha

Strand 1922 : 529

Macotasa dimorpha:

HolloWay 1982 : 210
HolloWay 2001 : 306
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