Metallolophia opalina (Warren)

Han, Galsworthy, A. & Xue, 2005, A revision of the genus Metallolophia Warren (Lepidoptera, Geometridae, Geometrinae), Journal of Natural History 39 (2), pp. 165-195 : 171-173

Metallolophia opalina (Warren)

( Figures 6, 7 , 45, 54, 69)

Terpna opalina Warren, 1893: 349 , pl. 32, Fig. 14 . Lectotype ♀, Sikkim, here designated (BMNH).

Pseudoterpna opalina: Hampson, 1895: 475 .

Metallolophia opalina: Prout, 1912a: 38 ; Prout, 1932: 54, pl. 8f.

Description

Length of fore wing: 26–27 mm. Head light brown; third segment of palpus not elongate. Antenna thickened filiform in male, simple in female, segments as long as diameter of flagellum. Abdominal crests minute, with a few metallic scales. Wings broad, the outer margin of both wings shallowly crenulate. Fore wing with a broad pale zone below costa, the remainder brown, scattered with dense dark purplish brown streaks, the terminal area olive-green between veins. Antemedian line zigzag on fore wing, discal spots on both wings rather large, with the dark boundaries very faint. Postmedian line dentate, forming sharp teeth on M 1 and M 3 on fore wing, with short blackish teeth projecting distad along veins on hind wing. Underside almost uniformly purplish, fore wing with an elongate streak proximally to the discal spot, hind wing underside with dark purple discal spot.

Male genitalia ( Figure 54 ). Socii with lower third constricted and upper third bulging, tips hook-like. Terminal part of central basal lobe of valva round and reniform. Saccular process short, terminal part straight. Valva expanded to a curving lobe distal to the saccular process, then gently narrowing to the apex.

Female genitalia ( Figure 69 ). Very similar to M. arenaria (Leech) , but with corpus bursae longer. Total length of ductus bursae and corpus bursae about 2.8 times length of apophyses posteriores.

Specimens examined

Sikkim: 1♀, here designated as LECTOTYPE: label data: Type label, Sikkim, Möller, 1887, coll. H. J. Elwes, Rothschild bequest B.M.1939-1,?type, Pachyodes opalina Warr. ( BMNH). 1♀, 2440 m (8000 ft), 1889, coll. H. J. Elwes; 1 „, 2134 m (7000 ft), July 1896, coll. Pilcher ( BMNH). China: 1♀, Tibet: Mêdog: Maniwong , 930 m, 27 August 1974, coll. Huang Fusheng ( IZCAS).

Distribution

China: Tibet; N. India; Sikkim.

Remarks

A lectotype is designated above in order to provide certainty and stability. This species is new to the fauna of China .

Figures

Figures 2–21. Adults of Metallolophia. (2–5) M. vitticosta (Walker) (BMNH). (2, 3) „: (2) upperside, (3) underside. (4, 5) ♀: (4) upperside, (5) underside. (6, 7) M. opalina (Warren) (lectotype, ♀, BMNH): (6) upperside, (7) underside. (8, 9) M. albescens Inoue (paratype, „, IZCAS): (8) upperside, (9) underside. (10, 11) M. albescens ssp. nov. (holotype, „, IZCAS): (10) upperside, (11) underside. (12, 13) M. purpurivenata sp. nov. (holotype, „, IZCAS): (12) upperside, (13) underside. (14, 15) M. subradiata (Warren) (holotype, ♀, BMNH): (14) upperside, (15) underside. (16, 17) M. medullosa Inoue (holotype, „, NSMT): (16) upperside, (17) underside. (18, 19) M. variegata Holloway (paratype, „, BMNH): (18) upperside, (19) underside. (20, 21) M. cineracea Holloway (paratype, ♀, BMNH): (20) upperside, (21) underside. Natural size.

Figures 53–56. Male genitalia. (53) M. vitticosta (BMNH Geom-10607). (54) M. opalina (BMNH Geom-20969). (55) M. albescens (BMNH Geom-20970). (56) M. albescens yunnanensis ssp. nov., holotype (IZCAS Geom- 00106). Scale bar: 1 mm.

Figures 69–74. Female genitalia. (69) M. opalina (IZCAS Geom-00103). (70) M. albescens (IZCAS Geom- 00030). (71) M. purpurivenata sp. nov., holotype (IZCAS Geom-00109). (72) M. subradiata (BMNH Geom- 20968). (73) M. medullosa (ZFMK 2740). (74) M. cineracea (BMNH). Scale bar: 1 mm.