Metallolophia vitticosta (Walker)

Han, Galsworthy, A. & Xue, 2005, A revision of the genus Metallolophia Warren (Lepidoptera, Geometridae, Geometrinae), Journal of Natural History 39 (2), pp. 165-195 : 170-171

publication ID	https://doi.org/ 10.1080/00222930310001657865
persistent identifier	https://treatment.plazi.org/id/907387D9-C011-FFD1-FE79-FD63EC91CC07
treatment provided by	Felipe
scientific name	Metallolophia vitticosta (Walker)
status

Treatment

Metallolophia vitticosta (Walker) View in CoL

( Figures 1–5 View Figure 1 View Figures 2–21 , 44, 53, 68)

Hypochroma vitticosta Walker, 1860: 438 View in CoL . Holotype „, [ Malaysia]: Sarawak (OUM).

Metallolophia vitticosta: Warren, 1895: 88 View in CoL ; Prout, 1912a: 37; Prout, 1932: 54, pl. 8f; Holloway, 1996: 203, Figures 147, 157, pl. 5: 17.

Description

Length of fore wing „ 19 mm; ♀ 21 mm. Vertex, frons and terminal half of palpus blackish brown mixed with a few red scales in male, pale brown in female. Antenna in male lamellate, with the segments short and broad ( Figure 1a, b View Figure 1 ), in female almost simple, all segments shorter than diameter of flagellum. Third segment of female palpus elongate, as long as one-third of second. Abdominal crests strongly metallic. Wings in male narrowed, fore wing elongate, its outer margin very oblique; hind wing with inner margin much more elongate than in other species. Both sexes with outer margin of both wings strongly crenulate. Fore wing with a pale (white in fresh specimens) zone below the costa, rest of wings suffused with brown (green in fresh specimens), discal spots and postmedian lines indistinct on both wings. An indistinct zigzag antemedian line present on fore wing below the pale zone, the postmedian line on fore wing running outwards from costa to M 3, then suddenly turning back inward, gently bending to inner margin, forming a blunt angle on M 3. Underside pale brown, with a hue of light purplish, outer half with a faint dark subterminal band. Fore wing with a blackish purple double-streak-like discal spot, a round black spot proximally to it and a faint purplish streak below the round spot. Hind wing with a faint, elongate discal spot on upperside.

Male genitalia ( Figure 53 View Figures 53–56 ). Valva broad at the terminal half. Central basal lobe and saccular process long; terminal part of the lobe blade-like; end of saccular process shortly curved, outer margin of process irregularly expanded and forming some characteristic thorns.

Female genitalia (Figure 68). Ductus bursae longer than in congeners, corpus bursae pyriform, short, only a little longer than apophyses posteriores.

Specimens examined

Malaysia: HOLOTYPE: „ [Malaysia]: Sarawak ( OUM); 1 „, Sarawak: Gunong Mulu National Park, R.G.S. Exped. 1977–78 (J. D. Holloway et al.), Site 20, 150 m; 1 „, West Melinau Gorge, grid reference 422577 ( BMNH); 1♀ (Borneo, no further data, BMNH). Vietnam: 1 „, Bach-Ma National Park, 16 ° 109N, 107 ° 549E, 1200 m, 6 August 1996, coll. Siniaev and Afonin ( ZSM).

Distribution

Vietnam; Indonesia: Sumatra; Malaysia: Sarawak.