Stenoloba oculatoides 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 : 12-13

Stenoloba oculatoides Han & Kononenko sp. n.

( Figs. 5 , 22 )

Type material. Holotype: male, China, Prov. Yunnan, Pur , 14.vi.2007 (coll. H.L. Han). The holotype preserved in the collection of Northeast Forestry University, Harbin.

Diagnosis. The type specimen is in worn condition; therefore we can not present comparative diagnosis by external appearance. Judging from the structure of the male genitalia the new species belongs to the S. clara species group. It is close to S. oculata Draudt, 1950 , but differs by more massive and more constricted valva, structure of tegumen and vinculum, and structure of aedeagus and vesica.

Description. Adult ( Fig. 5 ). Wingspan 24 mm. Forewing narrow, with parallel costal and ventral margins; costa in basal part arched; outer margin straight, perpendicular to inner margin; tornal angle widely rounded. Basal field with oblique line of black scales bordered with green, orbicular and reniform stigmata present; main lines more strongly expressed in costal area; subterminal line forms blackish triangle in costal area, diffused in the rest of wing; tornal spot present. Hindwing brownish grey, discal spot traceable.

Male genitalia ( Fig. 22 ). Genital armature more massive compared with those of S. oculata . Uncus small, reduced, flat; tegumen wide, short; vinculum 3 times higher than tegumen; peniculus expressed; juxta small, plate-like; transtilla moderately sclerotized. Valva, unlike to S. oculata , broad at base, gradually constricted to apex; apical part tapering; costa strong, with prominent plate-like extension in apical third; sacculus long, clasper as sclerotized longitudinal bar. Aedeagus relatively long, straight, vesica tubular, extended medially, with small plate-like cornutus and fine scobination in mid part. Female unknown.

Etymology. The species name “ oculatoides ” indicates its close relation to Stenoloba oculata .

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 18–23. Stenoloba spp., male genitalia. 18. S. yunley, paratype, genit. prep. HHL-1331-1; 19. S. viridibasis, holotype, genit. prep. HHL-1335-1; 20. S. manley, South Korea; 21 S. pulla, genit prep. HHL-1243-1; 22. S. oculatoides, holotype, genit. prep. AZS-HHL-163; 23. S. oculata, genit. prep. HHL-518-1.