Stenoloba chlorobrunnea, 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 : 304

Stenoloba chlorobrunnea sp. n.

( Figs 4, 5 , 34 )

Type material. Holotype: male, China, Aut. Reg. Xizang, Linzhi, Hanmi , 2200 m, 20–28.vii.2013, Z.H. Pan leg.; slide 6153-1, coll. NEFU . Paratype: 1 male, same locality and data, slide HHL-6152-1, coll. NEFU .

Diagnosis. Together with previous species, S. chlorobrunnea forms own group of species. By the genitalia structure, namely the shape of valva, there is no similar species among describe Stenoloba spp. The new species somewhat similar to dark form of S. huanxipoa , but differs by more developed dark elements of wing pattern. In the male genitalia, valva with parallel margins not constricted distally, costa with obtuse dorsal extension, ventral margin of valva forms long, acute and pointed apex of valva.

Description. Adult ( Figs 4, 5 ). Wingspan 25–27 mm. Head and thorax ochreous-green, with brownish scales; ground colour of forewing ochreous-green with black-brown; basal line marked as interrupted black line, expressed in costal tornal areas; subbasal field ochreous-green, with brownish dusting in costal area; medial field dark blackish-brown, with ocherous-green patch in costal area; orbicular indistinct; reniform marked as dark spot encircled with black; medial line marked in costal area by blackish line; antemedial line blackish on most part of wing, pale greyish in costal area; subterminal and terminal fields ocherous-green with blackish dusting; subterminal line blackish-brown, diffused; terminal line interrupted, as line of blackish streaks; cilia blackishbrown. Hindwing brownish-grey, slightly darker to terminal margin; discal spot hardly traceable; cilia blackishbrown, pale in base.

Male genitalia ( Fig. 34 ). Uncus present, rather short and week (about fourth of the length of tegumen); tegumen and vinculum thin, about equal in length; transtilla with broad sclerotised bands; juxta more or less platelike; valva moderate in length and width, with parallel margins for three fourth of length; sacculus elongate, rounded; costa abrupt, with obtuse extension covered with strong hairs; ventral margin of valva forms long acute pointed extension. Aedeagus moderate long, vesica tubular, prominently bulbous extended in middle, with sclerotised band on ventral side of medial extension.

Female unknown.

Etymology. The species name refers to its characteristic wing colouration.

Distribution. Southwest China (Aut. Reg. Xizang). The species is known only from its type-locality, Aut. Reg. Xizang, Linzhi, Hanmi, where it occurs in mountains at elevation 2200 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].