Atrovirensis furcatus, Han, H. L., Pan, Z. H. & Kononenko, V. S., 2016

Han, H. L., Pan, Z. H. & Kononenko, V. S., 2016, A review of the genus Atrovirensis Kononenko, 2001 with description of four new species from China (Lepidoptera, Noctuidae: Xyleninae, Apameini), Zootaxa 4088 (2), pp. 201-220 : 214-215

Atrovirensis furcatus sp. n.

( Figs 10, 11 , 30 , 43 )

Type material. Holotype: male, China, Aut. Reg. Guangxi, Mt. Cenwanglaoshan, v.2002. M. Wang leg., genit. slide HHL-2921-1, Coll. NEFU, Harbin.; Paratypes: 1 female, Prov. Guangdong, Nanling, Nanling, 22.ix.2001, M. Wang leg., genit. Slide HHL-2911-2; 1 female, Prov. Guangdong, Huizhou City, Mt. Nankun, 17.v.2003. M. Wang leg., genit. slide HHL-2919-2; 1 male, Prov. Guangdong, Nanling, 22.vi.2003, M.Wang leg., genit. slide HHL-2922-1; Coll. NEFU, Harbin and Coll. SCAU, presently deposited in NEFU, Harbin.

Diagnosis. Wingspan 40–42 mm. By characteristic structures of male and female genitalia (short, massive uncus, rounded cucullus lateral extension of sacculus and structure of vesica and cornuti in male and structure of antrum in female) the new species belongs to sinica -species group. Externally it similar to its sympatric sisterspecies, A. sinica and A. owadai described from Guangdong, and the allopatric sister-species, A. taiwani described from Taiwan. It can be distinguishable from them by more distinctly developed yellowish-green elements of wing pattern, paler blackish-brown background dusted with yellowish-green scales and paler grey-brown hindwing. In male genitalia it differs mainly by configuration of the clasping apparatus: more extended valva with slightly furcate harpe and less rounded cucullus and by structure of vesica and shape of cornuti. Female differs from A. owadai by broader and more rounded shape of antrum and about three times longer ductus bursae.

Description. Adult ( Figs 10, 11 ). Head and thorax covered with yellowish-green hair-like scales, palps blackish. Ground colour of forewing dark grey-brown with dusting of yellowish-green scales; main elements of wing pattern yellow-green; basal and subbasal fields filled with yellowish-green; basal line indistinct, dentate; subbasal line waved; costal field with yellowish-green marks tinged by black; medial field blackish-brown, with dusting of yellowish-green scales and hardly traceable claviform; orbicular marked by yellowish-green bordering line, reniform; filled with yellowish-green, dark in basal part; postmedial line waved; subterminal field yellowishgreen to brownish-green in outer part; veins in subterminal field dusted by ash-grey with whitish dots; subterminal line extended along veins M1 and M2; terminal field broader compared with related species; terminal line waved, broken for elongate black semilunar streaks outlined with yellowish-green; cilia greyish, yellowish-brown basally and opposite veins. Hindwing brownish-grey, generally darker than in A. parannamita and A. sp. cf. pedibus , with hardly traceable discal spot and medial line; cilia pale, yellowish-grey.

Male genitalia. ( Fig. 30 ). The male genitalia of A. furcatus can be distinguished from the related A. sinica , A. taiwani and A. owadai by slightly more extended cucullus, shorter neck of cucullus and shape of harpe which is shorter but stronger than in related species and curved and slightly furcate apically. Aedeagus with rather broad ventral diverticulum, armed by three joined small cornuti; the medial diverticulum bearing large stick-like cornutus, which is somewhat larger and less extended apically compared with related species.

Female genitalia. ( Fig. 43 ). The female genitalia of A. furcatus are close to A. owadai , but differ by broader and more rounded shape of antrum and three times longer ductus bursae.

Etymology. The species name refers to characteristic feature of species—slightly bifurcate harpe.

Distribution. The species is known from its type locality in South China (Guanxi and Guangdong Provinces)

Note. Two males and two females of this species (holotype, genit. slide HHL-2921-1 and paratypes, HHL- 2919-2, HHL-2911-2) were incorrectly included to the type-series of A. owadai as paratypes (Gyulai et al. 2013).

Figures

FIGURES 1 – 15. Atrovirensis spp., adults. 1. A. atrovirens, Nepal (after Gyulai et al. 2013); 2. A. annamita, HT, Vietnam (after Gyulai et al. 2013); 3. A. parannamita sp. n., male HT, China, Aut. Reg. Xizang, genit. prep. HHL- 2930 - 1; 4. A. parannamita sp. n., female PT, China, Aut. Reg. Xizang, genit. prep. HHL- 2906 - 2; 5. A. pedibus, HT, China, Prov. Hubei (after Gyulai et al. 2013); 6. A. sp. cf. A. parannamita, male, China, Aut. Reg. Xizang, genit. prep. HHL- 2907 - 1; 7. A. sinica, HT, China, Prov. Guangdong, genit. prep. ZFMK 1624; 8. A. owadai, Prov. Guangdong, HT, China (after Gyulai et al. 2013); 9. A. taiwani, HT, Taiwan (after Gyulai et al. 2013); 10. A. furcatus sp. n., male HT, China, Prov. Guangdong, genit. prep. HHL- 2921 - 1; 11. A. furcatus sp. n., female PT, China, Prov. Guangdong, genit. prep. HHL- 2919 - 2; 12. A. sp. cf. furcatus, male, China, Prov. Guangdong, genit. prep. HHL- 2918 - 1; 13. A. sp. cf. furcatus, female, China, Prov. Guangdong, genit. prep. HHL- 2909 - 2; 14. A. sacculatus sp. n., male HT, China, Aut. Reg. Xizang, genit. prep. HHL- 2910 - 1; 15. A. sacculatus sp. n., male PT, China, Aut. Reg. Xizang, genit. prep. HHL- 2908 - 1.

FIGURES 30 – 32. Atrovirensis spp., male genitalia. 30. A. furcatus sp. n., HT, China, Prov. Guangdong, genit. prep. HHL- 2921 - 1; 31. A. sp. cf. furcatus, China, Prov. Guangdong, genit. prep. HHL- 2918 - 1; 32. A. sacculatus sp. n., HT, China, Aut. Reg. Xizang, genit. prep. HHL- 2910 - 1.

FIGURES 36 – 44. Atrovirensis spp., female genitalia. 36. A. atrovirens, Nepal, genit. prep. RL 10874; 37. A. annamita, Vietnam, PT, genit. prep. RL 10894; 38. A. parannamita sp. n., PT, China, Aut. Reg. Xizang, genit. prep. HHL- 2906 - 2; 39. A. pedibus, PT, China, Prov. Hubei, GYP 3329; 40. A. sp. cf. A. parannamita, China, Aut. Reg. Xizang, genit. prep. HHL- 2925 - 2; 41. A. owadai, PT, China, Guangdong, genit. prep. W 023 (after Gyulai et al. 2013); 42. A. owadai, PT, China, Prov. Guangdong, genit. prep. HHL- 2913 - 2; 43. A. furcatus sp. n., PT, China, Prov. Guangdong, HHL- 2919 - 2; 44. A. sp. cf. furcatus, China, Prov. Guangdong, HHL- 2909 - 2.