Helcystogramma arotraeum ( Meyrick, 1894 )

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 : 1064-1065

Helcystogramma arotraeum ( Meyrick, 1894)

( Figures 8B , 10F , 12A , 14E )

Cladodes arotraea Meyrick, 1894: 15 .

Brachmia arotraea (Meyrick) : Meyrick, 1911: 722; Meyrick, 1925: 248; Gaede, 1937: 534; Issiki, 1950: 463; Inoue, 1954: 72; Okano, 1959: 271; Clarke, 1969a: 354; Moriuti, 1982, I: 287, II: 215.

Helcystogramma arotraeum (Meyrick) : Hodges, 1986: 122; Park and Hodges, 1995: 226; Ueda, 1995: 383; Ponomarenko, 1997: 4.

Helcystogramma arotraea (Meyrick) : Robinson et al., 1994: 81.

Diagnosis

Adult ( Figure 8B ). Wingspan 9.0–10.5 mm. This species is similar to H. fuscomarginatum Ueda superficially. It differs from the latter in the forewing with paler colour on all veins; the eighth tergite subtriangular ( Figure 10F ), the valva narrower, shorter than the tegumen–uncus complex, the lobes of vinculum acute dorsoapically, and the aedeagus without sclerotized process in the male genitalia ( Figure 12A ); the corpus bursae oblong, and the accessory bursa arising from anterior margin or near anterior margin of the corpus bursae in the female genitalia ( Figure 14E ).

Material examined

CHINA: Hainan Province: 1 male, 1 female, Jianfengling (18 ◦ 42 ′ N, 108 ◦ 47 ′ E), 17 May 1978 ( IZCAS) ; Jiangxi Province: 1 male, Fengxin (28 ◦ 42 ′ N, 115 ◦ 22 ′ E), 100 m, 19 July 1975, coll. Youqiao Liu ( IZCAS) ; Yunnan Province: 1 male, Jinghong (22 ◦ 01 ′ N, 100 ◦ 48 ′ E), 17 August 1990 ( IZCAS) .

Host plants

Poaceae : Zizania latifolia Turcz. , Oryza sativa L. (Ueda 1995).

Distribution

China (Hainan, Jiangxi, Taiwan, Yunnan), Japan, Myanmar, Thailand, Malaysia, India, Indonesia, Sri Lanka.

Figures

Figure 8. Adults of Helcystogramma spp. (A) H. flavifuscum sp. nov., holotype male; (B) H. arotraeum (Meyrick), female; (C) H. fuscomarginatum Ueda, male; (D) H. lutatella (Herrich- Schäffer), male; (E) H. triannulella (Herrich-Schäffer), male; (F) H. brevinodium sp. nov., holotype 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 12. Male genitalia of Helcystogramma spp. (A) H. arotraeum (Meyrick), genitalia slide no. ZH07202; (B) H. fuscomarginatum Ueda, genitalia slide no. ZH06219; (C) H. lutatella (Herrich-Schäffer), genitalia slide no. ZH06465; (D) H. brevinodium sp. nov., holotype, genitalia slide no. LZD01068; (E) H. hassenzanensis Park et Hodges, genitalia slide no. L95013; (F) H. trijunctum (Meyrick), genitalia slide no. ZH06071.

Figure 14. Female genitalia of Helcystogramma spp. (A) H. flavilineolella Ponomarenko, genitalia slide no. ZH06473; (B) H. bicuneum (Meyrick), genitalia slide no. ZH06475; (C) H. epicentra (Meyrick), genitalia slide no. ZH09011; (D) H. hibisci (Stainton), genitalia slide no. ZH06170; (E) H. arotraeum (Meyrick), genitalia slide no. ZH07204; (F) H. lutatella (Herrich-Schäffer), genitalia slide no. ZH06420.