Stenoloba gaoligonga, 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 : 302-303

Stenoloba gaoligonga sp. n.

( Figs 1 , 31 )

Type material. Holotype: male, China, Prov. Yunnan, Tengchong, Mt. Gaoligong , 16.vii.2012, H.L. Han, X.X. Jin & H. Geng leg., slide HHL-2596-1, coll. NEFU.

Paratypes: 7 males, Yunnan, Tengchong, Mt. Gaoligong, Huanxipo 18.vii.2012, H.L. Han, X. X. Jin & H. Geng leg., slides: HHL-2595-1, HHL-2612-1; 1 male, Aut. Reg . Xizang, Linzhi, Hanmi , 2200 m, 20-28.vii.2013, Z.H. Pan leg., slide HHL-6154-1; 1 male with same label data, slide HHL-6155-1; 3 males, Prov . Yunnan, Mt. Gaoligong , 30.vii–2.viii.2014, H.L. Han leg., slides: HHL-3177-1; HHL-3177-1s HHL-3178-1 [coll. NEFU] .

Diagnosis. The new species belong to S. manleyi species-group. It is close to S. liuii Chen , S. pulla Ronkay , and S. ronkayi Behounek & Kononenko , but differs from all by smaller size, wing pattern and structure of male genitalia: namely narrower valva, absence of subscaphium and shape of aedeagus and vesica. It is most close to S. ronkayi , from which differs by less sharp wing pattern with diffused transversal lines. In male genitalia it differs from S. ronkayi by stronger uncus, somewhat narrower valva slightly constricted distally (in S. ronkayi valva broader, with parallel margins, slightly extended distally); aedeagus longer, without coecum (very short in S. ronkayi , with small distinct coecum); distal diverticulum smaller and narrower, flat spine-like cornutus about two time larger than in S. ronkayi .

Description. Adult ( Fig. 1 ). Wingspan 23–24 mm. Head and thorax ochreous-green, with whitish scales; ground colour of forewing greyish with ochreous-green tint, wing pattern unsharp, diffused; basal field dark, ochregreen, subbasal fields prominently whitish with ochre-green; submedial and part of medial fields grey, separated by indistinct greenish line; outer part of medial field pale greyish-green with pale yellowish suffusion in costal area; orbicular indistinct; reniform encircled with black, with black center and whitish medial line; postmedial line double, formed with two thin blackish lines; subterminal field greyish, with indistinct grey marks and prominent blackish subapical mark in costal area; terminal field pale greyish with greenish and prominent apical mark; terminal line interrupted, as a row of small blackish streaks; cilia uniformly greyish. Hindwing greyish, darker to terminal margin; discal spot hardly traceable; cilia pale grey.

Male genitalia ( Fig. 31 ). Uncus developed, relatively long and strong; tegumen and vinculum thin, tegumen two times higher than vinculum; transtilla with large and broad sclerotised bands; juxta more or less leave-shaped; valva rather long, broad basally, with almost parallel margins, from basal part to apex smoothly constricted distally, rounded apically; valva apex armed with strong fixed setae. Aedeagus rather short and wide, caulis not expressed, with plate like carina; vesica broadly-tubular, projecting ventrally, with small diverticulum and very large flat wide cornutus on plate base.

Female unknown.

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

Etymology. The species name refers to Gaoligong Mts., the type-locality of the new species.

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].