Scopula satsumaria Leach stat. rev.

Craspedia insolata Butler, 1889, Illustr. typ. Specimens Lepid. Het. Colln Br. Mus., 7:109.

Acidalia satsumaria Leach, 1897, Ann. Mag. nat. Hist. (6) 20: 91.

Acidalia butleri Prout, 1913, Gross-Schmett. Erde, 4: 78.

Scopula insolata aequibrachiata Holloway (see notes below)

♂♂ 7-8mm. The wing markings are as in typical insolata, though not so clearly defined, and the forewing postmedial is narrower. The central element of this is contiguous with the rest and of even width as in insolata. In S. pedilata Felder (Sri Lanka, Bali) it is broader, of more even brown tone, and with constrictions separating it from the rest of the fascia. In the male abdomen, the cerata of the eighth sternite are of unequal length (left,half of right and more strongly curved) in typical insolata, but more or less equal, long in the Bornean race.

Taxonomic note

Scopula insolata Butler was indicated to be a junior secondary homonym of Acidalia insolata Felder & Rogenhofer in Scoble (1999), following the inclusion of the former taxon in Acidalia by Prout (1913, Gross-Schmett. Erde 4: 78), who gave butleri Prout as a replacement name for the junior homonym. The Code indicates that such replacement names established before 1961 must prevail, even if the secondary homonymy is no longer extant, as in this case, with the senior homonym currently in the Neotropical genus Ptychomalia Prout and the junior homonym in Scopula.

Scoble also listed satsumaria Leach (1897, Ann. Mag. nat. Hist. (6), 20: 91, Acidalia) as a synonym of butleri and apparently also of the Bornean subspecies aequibrachiata Holloway. However, as the oldest name, satsumaria has priority over both butleri and aequibrachiata, and must therefore be accorded specific rank, stat. rev., with subspecies butleri Prout stat. n. and aequibrachiata Holloway comb. n.

Holotype ♂

SARAWAK: Gunung Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.) Site 25, April, G. Api, 900m. 427550. lower montane forest BM geometrid slide 17781.

Paratype

• 2 ♂♂ as holotype but site 23, W. Melinau Gorge, 250m, 430558, FEG 4, limestone
• 2 ♂♂ as holotype but sites 8, 9, Camp 1 Mulu, 140m, 150m, mixed dipt. for.

Geographical Range

N.E. Himalaya, Sumatra, China; Japan (ssp. satsumaria); Borneo.

Habitat Preference

Four specimens are from lowland forest, one from lower montane forest. The latter and two of the lowland specimens were from limestone.

Genitalia: