Stenoloba huanxipoa, Han & Kononenko, 2018

Han, H. L. & Kononenko, V. S., 2018, Twelve new species and four new records of Stenoloba Staudinger 1892 from China (Lepidoptera, Noctuidae: Bryophilinae), Zootaxa 4388 (3), pp. 301-327 : 303-304

Stenoloba huanxipoa sp. n.

( Figs 2, 3 , 32, 33 , 48 )

Type material. Holotype: male, China, Prov. Yunnan, Tengchong, Mt. Gaoligong, Huanxipo 1–3.viii.2014, H.L. Han leg., slide HHL-3182-1, coll. NEFU . Paratypes: 2 males, same locality, 18.vii.2012, H.L. Han, X. X. Jin & H. Cheng leg., slide HHL-6154-1 ; 3 males, 3 female, 3.viii.2014, same locality, H.L. Han leg., genit . slides: HHL- 3173-2, 3174-1; 3175-2; 3176-2; 3 males, 4, 6.viii.2014, same locality, H.L. Han & Z.P. Xiong leg. ; 2 males, 1 female, same locality, 1–3.viii.2013, Z.H. Pan leg., slides HHL-3182-1S; 3183-2 [coll. NEFU] ; 1 female, Aut. Reg. Xizang, Linzhi, Lulang Bingzhan , 26.vii.2013, H.L. Han, Z.G. Wu leg., slide HHL-2949-2, coll. NEFU ; 2 males, Prov, Jiangxi, Guanshan Nature reserve, 21–23.viii.2017, H.L. Han leg. ; 1 male, 1 female, Aut. Reg. Xizang, Linzhi, Pailong , 9.–10.viii.2017, H.L. Han leg. ; 1 female, Aut. Reg. Xizang, Yigong, Shuangyu , 7.viii.2017, H.L. Han leg.

Diagnosis. This and next species represent separate S. huanxipoa species-group, which could be characterized by structure of male genitalia, namely presence of developed uncus, shape of valva bearing dorsal extension of costa and structure of vesica with missing cornuti. There is no similar species among describe Stenoloba spp. The new species externally is characterized by green or ochre-green ground colour of forewing and characteristic dark blackish marks in the costal area outward antemedial line and opposite reniform; the last forms u-like mark. In male genitalia, valva constricted distally, costa with acute finger-like dorsal extension.

Description. Adult ( Figs 2, 3 ). Wingspan 24–26 mm. Head and thorax ochreous-green or salad-green, with whitish scales; ground colour of forewing ochreous-green or salad-green, wing pattern unsharp; basal field somewhat darker than background, bordered with blackish scales; subbasal fields ochre-green or salad-green; separated from medial field by wide oblique blackish stroke; orbicular as indistinct reddish point in base of stroke; reniform encircled with blackish scales on whitish background; two blackish strokes in costal field below reniform form u-like mark; subterminal line blackish, indistinct; subterminal field green with indistinct dashes, separated from terminal field by thin whitish line; terminal field green or green with blackish scales, with whitish apical mark; terminal line interrupted, as a row of small blackish streaks; cilia greyish with white. Hindwing yellowishgrey, darker to terminal margin; discal spot hardly traceable; cilia yellowish-grey, pale in base.

Male genitalia ( Figs 32, 33 ). Uncus present, moderate in length (about half of the length of tegumen); tegumen and vinculum thin, tegumen almost equal to vinculum; transtilla with broad sclerotised bands; juxta more or less leave-shaped; valva rather long, broad, with parallel margins basally, gradually constricted apically, with broad rounded sacculus and acute pointed apex; costa bearing acute finger-like extension in distal third, before apex. Aedeagus rather long, vesica tubular, extended in middle, with two large medial diverticula.

Female genitalia ( Fig. 48 ). Ovipositor weak, short; apophyses anteriores and posteriors ones equal in length; antrum sclerotised, long funnel-like, with sclerotised fields posteriorly; ductus bursae equal to antrum in width and length, flat, moderately long, sclerotised; corpus bursae moderate in length, rounded-elongate, membranous with short, slightly sclerotised appendix bursae.

Etymology. The species name is referred to Huanxipo village, the type-locality of the new species.

Distribution. Southwest China (Prov. Yunnan, Aut. Reg. Xizang and Prov. Jiangxi). The species is known only from its type-locality in Prov. Yunnan, where it occurs in mountains at elevation 1200–1500 m. Moths were collected in July.

Figures

FIGURES 1–15. Stenoloba spp., adult. 1. S. gaoligonga sp. n., male, holotype, slide HHL-2596-1; 2. S. huanxipoa sp. n., male, holotype, slide HHL-3128-1; 3. Ditto, female, paratype, slide HHL-3176-2; 4. S. chlorobrunnea sp. n., male, holotype, slide HHL-6153-1; 5. Ditto, paratype, slide HHL-6153-1; 6. S. ochraceola sp. n., male, holotype, slide HHL-2904-1; 7. S. plumbeoviridis sp. n., male, holotype, slide HHL-2920-1; 8. S. plumbeobrunnea sp. n., male, holotype, slide HHL-2955-1; 9. Ditto, paratype, slide HHL-2958-1; 10. S cucullata sp. n., male, holotype, slide HHL-6161-1; 11. S. asymmetrica sp. n., male, holotype, slide HHL-6184-1; 12. S. acontioides sp. n., female, holotype, slide HHL-6185-2; 13. S. rectilinoides sp. n., male, holotype, slide HHL-2951-1; 14. S. uncata sp. n., male, holotype, slide HHL-2950-1; 15. S. assimilina sp. n., male, holotype, slide HHL-3186-1 [all materials from coll. NEFU].

FIGURES 31–35. Stenoloba spp., male genitalia. 31. S. gaoligonga sp. n., holotype, slide HHL-2596-1; 32. S. huanxipoa sp. n., holotype, slide HHL-3128-1; 33. Ditto, paratype, slide HHL-6154-1; 34. S. chlorobrunnea sp. n., holotype, slide HHL- 6153-1; 35. S. ochraceola sp. n., holotype, slide HHL-2904-1 [all materials from coll. NEFU].

FIGURES 48–57. Stenoloba spp., female genitalia. 48. S. huanxipoa sp. n., paratype, slide HHL-3176-2; 49. S. acontioides sp. n., holotype, slide HHL-6185-2; 50. S. assimilina sp. n., paratype, slide HHL-3853-2; 51. S. albistriata, slide HHL-6182-2; 52. S. acutivalva, slide HHL-6144-2; 53. S. motuoensis, slide HHL-2924-2; 54. S. speideli, slide HHL-6148-2; 55. S. glaucescens, slide HHL-3185-2; 56. S. nora, slide HHL-6167-2; 57. S. plumbeoculata, slide HHL-6164-2 [all materials from coll. NEFU].