Stenoloba viridinivea Han & Kononenko, 2009

Han, H. L. & Kononenko, V. S., 2009, A review of the genus Stenoloba Staudinger, 1892 from China, with description of 6 new species and 7 new records for China (Lepidoptera: Noctuidae, Bryophilinae), Zootaxa 2268 (1), pp. 1-22 : 13

Stenoloba viridinivea Han & Kononenko sp. n.

( Figs. 7, 8 , 24 , 41 )

Type material. Holotype: male, China, Prov. Yunnan, Pur , 14.vi.2007 (coll. H.L. Han) . Paratypes: 17 males, 6 females, Prov. Yunnan, Jiangcheng , 15–17.ix.2008 (Coll. H.L. Han & E. Liu) ; 1 male, Prov. Yunnan, Mojiang , 18–19.ix.2008 (coll. H.L. Han & M.J. Qi). The types are preserved in the collection of Northeast Forestry University, Harbin .

Diagnosis. The new species belongs to a distinct species-group in the genus Stenoloba . The moth can be recognized by pale greenish colour of forewing with intensive whitish suffusion, white marks on antemedial and subterminal fields and clearly expressed oblique blackish subapical mark in costal field. The male genitalia differ from those of the other Stenoloba species by wide rhomboidal shape of valva, not found in the other groups.

Description. Adult ( Figs. 7, 8 ). Wingspan 18–22 mm. Body rather slender, head and thorax greyish with pale greenish tint, collar blackish, tegulae greenish-grey; thoracic crest high, formed by greenish-grey and reddish-brown scales. Forewing rather narrow, with somewhat acute apex, straight outer margin and roundedoblique tornal angle. Basal field pale salad-green, surrounded with white basal line; subbasal field greyishgreen with dark blackish diffused claviform; antemedial line white, bordered with black; medial field greenish-grey, darker towards inner margin; orbicular whitish, bordered by blackish marks; reniform whitish, diffused, bordered inside by black streak; subterminal line thin, blackish, dentate, bordered outside with white, forming white subtornal mark; subterminal field pale greenish-grey with strong suffusion of whitish scales; subterminal line white, diffused, bordered outside with diffused pale greenish-grey marks; subterminal line indistinct, formed by brown scales; cilia whitish. Costal area with more intensive greenish-grey coloration, all lines marked by black, with conspicuous black oblique subapical streak. Hindwing pale browngrey, darker in outer area, discal spot traceable, cilia whitish.

Male genitalia ( Fig. 24 ). Uncus developed, rather long, thin; tegumen and vinculum thin, almost equal in length; transtilla with very wide sclerotized plates; juxta rounded, plate-like, with short apical extension. Valva rhomboidal in shape, rather wide; basal half of valva wide, vinculum large and wide, clasper as short sclerotized bar, costa short. From middle part valva gradually tapered distally, apex tapered; most apical part of valva covered by numerous strong, thin setae. Aedeagus rather short, wider in middle, tapered basally and apically; vesica tubular, rather short, curved dorsally, somewhat extended in middle with small basal and moderate apical diverticula, bearing one short but wide spine-like cornutus.

Female genitalia ( Fig. 41 ). Ovipositor large, quadrangular; apophyses anteriores and posteriores moderate long, equal in length; antrum very long, rather vide, flattened, with relatively narrow medial sclerotization; ductus bursae short, membraneous; cervix bursae prominent, with large sclerotized extension; bursa large, sack-like.

Etymology. The species name “ viridinivea ” refers to the pale greyish-green coloration with whitish suffusion in the forewing.

Distribution. The species is known only from its type-locality, Prov. Yunnan, South West China.

Figures

FIGURES 1–8. Stenoloba spp., adults. 1. S. yunley, male, holotype; 2. S. yunley, male, paratype; 3. S. viridibasis, male, holotype; 4. S. pulla, male; 5. S. oculatoides, male, holotype; 6. S. benedeki, male; 7. S. viridinivea, male, holotype; 8. S. viridinivea, male, paratype.

FIGURES 24–29. Stenoloba spp., male genitalia. 24. S. viridinivea, paratype, genit. prep. HHL-1338-1; 25. S. brunneola, genit. prep. HHL-1220-1; 26. S. viridimicta genit. prep. HHL-1330-1; 27. S. lichenosella, genit. prep. HHL- 1237-1; 28. S. basiviridis, genit. prep. HHL-1247-1; 29. S. benedeki, genit. prep. ZFMK 2021 VK.

FIGURES 39–44. Stenoloba spp., female genitalia. 39. S. yunley, paratype, genit. prep. HHL-1333-2; 40. S. manley, Japan, genit. prep. 691 VK. IBSS; 41. S. viridinivea, paratype, genit. prep. HHL-1337-2a; 42. S. brunneola, genit prep. HHL-1334-2a; 43. S. lichenosella, genit. prep. CAU-104-2; 44. S. viridescens, genit. prep. HHL-1336-2.