Anarsia pusillidia Park

Bae, Yang-Seop, Shin, Young-Min, Na, Sol-Moon & Park, Kyu-Tek, 2016, The genus Anarsia in Cambodia and the Northern Vietnam (Lepidoptera, Gelechiidae), with descriptions of ten new species and a catalogue of the genus in the Central-East Asia, Zootaxa 4061 (3), pp. 227-252 : 239

17. Anarsia pusillidia Park , sp, nov.

( Figs. 17 , 38 , 57, 57 a)

Holotype: ♂, VIETNAM, Ninh Vinh Prov., Cuc Phuong Nat. Park, 200 m, 23 iv 2006 (Park, Kim & Kang), gen. slide no. CIS-6467. Paratype: 1 ♂, same data as the holotype.

Diagnosis. This new species is superficially similar to A. didymopa Meyrick and A. patulella (Walker) , but it can be distinguished by the smaller size, the blackish streak in the discal cell absent, and the male genitalia with longer, hook-shaped basal process.

Description. Adult: Male ( Figs. 17 , 38 ). Wingspan, 8.5 mm. Head grayish white. Flagellum of antenna with distinct brownish annulations. Second segment of labial palpus in male ( Fig. 38 ) subtriangular, with scale tuft antero-vetrally, as long as width of head, covered with dark brown scales on lower 3/5 and creamy white scales on upper 2/5 on outer surface. Tegula same in color as dorsal surface of head, with blackish scales along anterior margin. Thorax same in color as tegula. Hind tibia with orange white hair-like scales dorsally. Forewing elongate; ground color grayish white, densely scattered with dark brown scales throughout; costa slightly straight before 3/4, with a short black streak at base, costal patch crescent, short, occupying about 1/10 of costa, preceded by two small, dark brown spots, and followed by pale orange streak along margin before 4/5 of costa,; a long hair pencil near base on the underside of forewing absent; apex acute; termen oblique, with blackish scales along margin; fringe grayish with pale orange basal line. Hindwing grayish white, hyaline in basal half, brownish along veins; broad anterior expansion on costa extended to middle, gently oblique; apex acute. Female unknown.

Male genitalia ( Figs. 57, 57 a): Uncus long, slender, strongly curved preapically; socius small. Tegumen broad, slightly convex beyond middle, as long as valva. Left valva with a long, arched, hook-shaped process basally, nearly half length of right valve, strongly convex medially on dorsal margin, palmately-modified scales with long stalk; right valve narrower than left one. Phallus short, slender, heavily sclerotized, as long as basal process of left valva.

Distribution. Vietnam (Nhin Binh Prov.).

Etymology. The species name is derived from the Latin, pusill (= small) with a Latin diminutive suffix, idius, referring to the small size of the moth.

Figures

FIGURES 1 – 21. Adults and venations. 1, Anarsia trichornis Meyrick, female; 2, A. isogona Meyrick, male; 3, A. paraisogona Park, male; 4, A. incerta Ueda, male; 5, A. deuterodes Park, sp. nov., male, holotype; 6. A. photica Meyrick, male; 7, A. diversiola Park, sp. nov., male, holotype; 8, A. porthmista Park, sp. nov., female, paratype; 9, A. acerata Meyrick, male; 10, A. gryphodes Park, sp. nov., male, holotype; 10 a, ditto, hair pencil on underside of forewing, 11, A. campestra Park, sp. nov., male, holotype; 12, A. similicampa Park, sp. nov., male, holotype; 13, A. choana Park, male; 14, A. kepensis Park, sp. nov., male, holotype; 15, A. melanodes Park, sp. nov., male. holotype; 15 a, ditto, hair pencil on underside of hindwing; 15 b. ditto, female. 16, A. didymopa Meyrick, male; 17, A. pusillidia Park, sp. nov., male, holotype; 18, A. patulella (Walker), male; 19, A. houhunlii Park, sp. nov., male, holotype; 19 a, ditto, hair pencil on underside of forewing; 20, Hindwing venation of A. patulella Walker; 21, Hindwing venation of A. porthmista Park, sp. nov..

FIGURES 22 – 40. Labial palpus of male and female: 22, Anarsia trichornis Meyrick; 22 a, ditto, female; 23, A. isogona Meyrick; 24, A. paraisogona Park; 25, A. incerta Ueda; 26, A. deuterodes Park, sp. nov.; 27, A. phortica Meyrick; 28, A. diversiola Park, sp. nov.; 29, A. porthmista Park, sp. nov.; 29 a, ditto, female; 30. A. acerata Meyrick, female; 31, A. gryphodes Park, sp. nov.; 32, A. campestra Park, sp. nov.; 33, A. similicampa Park, sp. nov., 34, A. choana Park; 35, A. kepensis Park, sp. nov.; 36. A. melanodes Park, sp. nov.; 37, A. didymopa Meyrick; 38, A. pusillidia Park, sp. nov.; 39, A. patulella (Walker); 39 a, ditto, female; 40, A. houhunlii Park, sp. nov.

FIGURES 56 – 59 c. Male genitalia: 56, A. melanodes Park, sp. nov.; 56 a, ditto, different view of the same species; 56 b, ditto, abdominal sternite VIII; 57, A. pusillidia Park, sp. nov.; 58, A. patulella (Walker); 58 a, ditto, abdominal sternite VIII; 59, A. houhunlii Park, sp. nov., left valva + tegumen; 59 a, ditto, right valva; 59 b, ditto, different view of left valva of the same species; 59 c, ditto, abdominal sternite VIII.