A taxonomic revision of the kalshoveni species-group of the genus Nemophora Hoffmannsegg (Lepidoptera, Adelidae), with descriptions of six new species from Indonesia and Papua New Guinea Author Kozlov, Mikhail V. text Zootaxa 2016 4189 3 559 570 journal article 10.11646/zootaxa.4189.3.6 36961809-00bf-492f-a723-ae7baf258057 1175-5326 166209 D3C2ED63-FF05-442F-8425-3960050DDA18 Nemophora humerella Kozlov , sp. nov. ( Figs. 2 , 11 , 23–27 ) Holotype ♂ : Indonesia , Sangir Island (approx. 3o40'N , 125o30'E ) ; labelled: 8 mm circle with red margin, print ‘Holo- | type’; 7 × 13 mm , print + black ink ‘SANGUIR. | Doherty, 1892. | No. 41745’; 7 × 10 mm , print ‘Walsingham | Collection. | 1910-427.’; 11 × 23 mm , black ink ‘ humerella | Type ♂’; 12 × 12 mm , print ‘B. M. ♂ | Genitalia Slide | No. 27823’; 8 × 18 mm , print ‘ HOLOTYPE ♂ | Nemophora | humerella Kozlov’ ( NHM ). Diagnosis . Most similar to N. kalshoveni , from which it differs by grey background colour of forewing (dark brown in N. kalshoveni ), white colour of light scales scattered in the basal field of forewing and forming oblique stripe in apical part of it (yellow in N. kalshoveni ), and by narrower, widely rounded valva (distal part of valva in N. kalshoveni is nearly rectangular) extending beyond the apex of the tegumen (in N. kalshoveni , apex of the tegumen extends beyond the apex of valva). Also resembles N. agassizi , from which it differs by presence of both dark brown and yellow scales near forewing base (basal quarter of forewing in N. agassizi is monotonously silver grey). Etymology . From humerus (Latin)—upper arm, shoulder. Description . Male ( Figs. 2 , 11 ). FWL 4.8 mm ; WLR 0.38. Vertex with sparse row of brown (medially) to grey (laterally) piliform scales along the occipital margin; frons silver grey. Eyes enlarged, touching each other occipitally; interocular index 1.2. PLB 0.6 × vertical eye diameter and 1.8 × scape, dark brown. Proboscis dark brown. Antenna 2.5 × FWL. Scape and basal 20–25 segments of flagellum dark brown; distal part of flagellum light brown to silver grey, with dark marks on ventral side of each segment. Tegula and thorax brown. Forewing grey; base of costa with small dark brown spot; basal half of forewing sparsely scattered with both dark brown and white scales (approximately in 1:1 ratio). Oblique stripe in the apical part of forewing straight, bright white, on both sides is bordered by narrow lines of dark brown scales; it reaches about 0.5 × forewing width; wing apex behind this oblique stripe densely suffused with both dark brown and white scales. Wing margin between the veins RS1 and M3 with white spot. Fringe brownish grey. Hindwing light brown; costal area grey; fringe light brown apically to light grey basally. Legs brown, apical parts of all tarsomeres and base of the first tarsomere white. Epiphysis at 0.5, reaching tip of tibia. Abdomen light brown, distal margins of both tergites and sternites white. Female unknown. Male genitalia ( Figs. 23–27 ). Tegumen long and narrow, with W-shaped apex. Socius elongate, 1.6–1.8 × diameter of phallus. Vinculum 1.8 × length of valva, with almost straight lateral margins, widely rounded basally; distal margin of vinculum indistinct, fused to valvae. Apex of valva extends beyond the apex of tegumen. Valvae fused basally up to 0.55 × total length; their internal margins indistinct; dorsal margin of valva almost straight; apex of valva widely rounded. Anellus 0.55 × length of valva. Transtilla with small triangular medial process. Juxta 0.3 × length of phallus; arrow head very narrow (WLR 0.4), with widely rounded tip and without lateral arms. Phallus 1.1–1.2 × length of vinculum, very thin, almost straight; base of phallus anchor-shaped. Distribution ( Fig. 9 ). Indonesia (Sangir Island ). Comments. The species’ name was proposed by Walsingham who labelled the holotype but never published the description.