Stenoloba viridescens Kononenko & Ronkay, 2001

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 : 18

Stenoloba viridescens Kononenko & Ronkay, 2001

( Figs. 16 , 33 , 44 )

Stenoloba viridescens Kononenko & Ronkay, 2001 , Insecta Koreana , 18(2): 108, figs. 17, 18, 36, 37, 50. Type locality: North Vietnam, Tam Dao , 60 km NW Hanoi, 1200 m. Holotype: male, preserved in ZFMK, Bonn.

Material examined. 2 males, 1 female, Aut. Reg. Guangxi, Miaorshan, Jiuniutang , 5–10.vii.1985 (coll. C.L. Fang & Z.Q. Wang) ; 3 males, Aut. Reg. Guangxi, Fangcheng, Fulong , 24–25.v.1999 (coll. Y.Z. Zhang & D.C. Yuan) ; 1 female, Prov. Yunnan, Pur , 14.vi.2007 (coll. H.L. Han) .

Diagnosis. The species with its allies S. cinechlora Kononenko & Ronkay, 2001 , S. speideli Kononenko & Ronkay, 2001 , S. tonkina Kononenko & Ronkay, 2001 and S. longipennis Kononenko & Ronkay, 2001 , all described from North Vietnam, and S. motuoensis Han & Lu, 2007 , described from South China form a species group of closely related, externally similar species. S. viridescens (fig. 16) can be recognized by relatively wide forewing with more or less pointed apex, brown-bright green coloration; orbicular stigma sharply defined as distinct black spot; reniform stigma clearly visible, outlined by black line; postmedial line with clear white streak near tornal angle. In male genitalia ( Fig. 33 ) distal part of valva with heavily sclerotized bifurcate costal extension; sacculus elongate with deep cut in middle and with long, acute, wedge shaped apical extension. Vesica simple, narrowly tubular, recurved. In female genitalia ( Fig. 44 ) antrum sclerotized, ductus bursae long, relatively narrowly tubular, well sclerotized; cervix bursae well separated, sclerotized. Most species of S. viridescens species group were known from montane regions of North Vietnam. Our records significantly extend the distribution of the species.

Distribution. North Vietnam, South China (Aut. Reg. Guangxi, Prov. Yunnan, first record).

Figures

FIGURES 9–17. Stenoloba spp., adults. 9. S. brunneola, male; 10. S. brunneola, male, holotype (ZFMK); 11. S. viridimicta; 12. S. lichenosella, male; 13. S. glauca, male; 14. S. rufosagittoides, male, holotype; 15. S. rufosagitta; 16. S. viridescens, male; 17. S. acutivalva, male, holotype.

FIGURES 30–34. Stenoloba spp., male genitalia. 30. S. glauca, genit. prep. HHL-1233-1; 31. S. rufisagittoides, holotype, genit. prep. ASZ-163-1; 32. S. rufosagitta, genit. prep. ASZ-158-1; 33. S. viridescens, genit prep. HHL-1241- 1; 34. S. acutivalva, holotype, genit. prep. HHL-1244-1.

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.