Helcystogramma perelegans ( Omelko and Omelko, 1993 )

Li, H. H. & Zhen, H., 2011, Review of the genus Helcystogramma Zeller (Lepidoptera: Gelechiidae: Dichomeridinae) from China, Journal of Natural History 45 (17 - 18), pp. 1035-1087 : 1062

Helcystogramma perelegans ( Omelko and Omelko, 1993)

( Figures 4A , 5A , 7F , 10D , 11E , 16C )

Tricyanaula perelegans Omelko and Omelko, 1993: 218 ; Omelko, 1999: 194.

Helcystogramma perelegans (Omelko et Omelko) : Ponomarenko, 1997: 8; Ponomarenko, 1999: 207; Park, 2004: 86; Park and Ponomarenko, 2007: 135; Ponomarenko, 2008: 103.

Diagnosis

Adult ( Figures 4A , 7F ). Wingspan 10.0–11.5 mm. This species is characterized by the forewing having dark silvery-grey markings with purplish-blue metallic lustre; the eighth tergite with posterior margin rounded, anterior margin concave in a semicircle ( Figure 10D ), the uncus narrow mesially (narrower than one-fifth width at base), broadly expanding in distal third, posterior margin slightly convex laterally, the valva slender and club-shaped from one-quarter length to three-quarters length (about onethird width at base), distal quarter dilated ovally in the male genitalia ( Figure 11E ); the anterior apophyses short, and the corpus bursae long oval in the female genitalia ( Omelko 1999: Plate 106, figs 1,2).

Material examined

CHINA: Hunan Province: 1 male, Zhangjiajie (29 ◦ 49 ′ N, 110 ◦ 26 ′ E), 650 m, 8 August 2001, coll. Houhun Li and Xinpu Wang ; Tianjin: 3 males, Mt. Baxian, Jixian (40 ◦ 02 ′ N, 117 ◦ 24 ′ E), 450 m, 25 June 2001, coll. Houhun Li et al.

Distribution

China (Hunan, Tianjin), Korea, Russia, Japan.

Remarks

This species is newly reported for China.

Figures

Figure 4. Head of Helcystogramma spp. (A) Ocellus of H. perelegans (Omelko and Omelko); (B–D) labial palpus: (B) H. brevinodium sp. nov. holotype male; (C) H. rectangulum sp. nov. paratype male; (D) H. angustum sp. nov. paratype male.

Figure 5. Venations of Helcystogramma spp. (A) H. perelegans (Omelko and Omelko), slide no. ZH06216W; (B) H. triannulella (Herrich-Schäffer), slide no. ZH07517W.

Figure 7. Adults of Helcystogramma spp. (A) H. flavilineolella Ponomarenko, male; (B) H. bicuneum (Meyrick), male; (C) H. epicentra (Meyrick), female; (D) H. hibisci (Stainton), female; (E) H. imagibicuneum sp. nov., holotype male; (F) H. perelegans (Omelko et Omelko), male.

Figure 10. (A–Q) Male abdominal eighth tergite of Helcystogramma spp. (A) H. flavilineolella Ponomarenko, slide no. ZH06459; (B) H. bicuneum (Meyrick), slide no. ZH06476; (C) H. epicentra (Meyrick), slide no. ZJL05249; (D) H. perelegans (Omelko et Omelko), slide no. ZH07574; (E) H. flavifuscum sp. nov., holotype, slide no. ZJL05145; (F) H. arotraeum (Meyrick), slide no. ZH07202; (G) H. fuscomarginatum Ueda, slide no. ZH06219; (H) H. lutatella (Herrich- Schäffer), slide no. L94400; (I) H. brevinodium sp. nov., holotype, slide no. ZH06114; (J) H. hassenzanensis Park et Hodges, slide no. L95013; (K) H. trijunctum (Meyrick), slide no. L00163; (L) H. albilepidotum sp. nov., holotype, slide no. ZH06324; (M) H. angustum sp. nov., holotype, slide no. ZH06467; (N) H. flavistictum sp. nov., holotype, slide no. L94242; (O) H. furvimaculare sp. nov., holotype, slide no. ZH06154; (P) H. imagitrijunctum sp. nov., holotype, slide no. L94299; (Q) H. rectangulum sp. nov., holotype, slide no. L95025. (R) I–III sternum of H. flavilineolella Ponomarenko, slide no. ZH06459.

Figure 11. Male genitalia of Helcystogramma spp. (A) H. flavilineolella Ponomarenko, genitalia slide no. ZH06459; (B) H. bicuneum (Meyrick), genitalia slide no. ZH06476; (C) H. epicentra (Meyrick), genitalia slide no. ZJL05249; (D) H. imagibicuneum sp. nov. holotype, genitalia slide no. ZH06224; (E) H. perelegans (Omelko et Omelko), genitalia slide no. ZH07574; (F) H. flavifuscum sp. nov., holotype, genitalia slide no. ZJL05145.

Figure 16. Saccus of Helcystogramma spp. (A) H. lutatella (Herrich-Schäffer); (B) H. imagibicuneum sp. nov.; (C) H. perelegans (Omelko et Omelko); (D) H. flavilineolella Ponomarenko; (E) H. angustum sp. nov.; (F) saccal region of Dichomeris okadai (Moriuti).