Maliarpha borealis Sasaki, 2012

Sohn, Jae-Cheon, 2022, New records of five species of Lepidoptera (Cosmopterigidae, Tortricidae, Pyralidae and Erebidae) from sand-dunes along the western coastline of Korea, Journal of Species Research 11 (1), pp. 61-66 : 63-64

publication ID	https://doi.org/ 10.12651/JSR.2022.11.1.061
persistent identifier	https://treatment.plazi.org/id/03E387A8-FF8F-FF92-78D3-0CC8FDA1DF2D
treatment provided by	Felipe
scientific name	Maliarpha borealis Sasaki, 2012
status

Treatment

º래Njȁẉḍ나ḏ ( Figs. 1C View Fig , 2A, 2B, 3B View Fig )

Maliarpha borealis Sasaki, 2012: 89 . Type locality: Japan, Akita Pref., Akita City, Wariyama .

Description ( Fig. 1C View Fig ). Head with vertex pale brown, intermixed with white scales posteromedially; frons dark brownish gray; labial palpus pale brownish gray, tinged with white ventrally and mesally; antenna 3/4 as long as forewing, pale brownish gray. Thorax with tegula and mesonotum pale brown. Forewing length 8.1 - 9.2 mm, gradually broadened to termen, pale brown, intermixed with white and dark brown scales on radial, terminal and dorsal areas; discal spot present at lower angle of discal cell, black; fringe pale gray. Hindwing pale gray, lustrous; fringe pale gray. Male genitalia ( Fig. 2A, B) with uncus rectangular, concave posteriorly; tuba anales protruding beyond uncus, narrowed distally; socius elongate-triangular, claw-shaped apically, sparsely setose; gnathos bifid apically; tagumen trapezoidal; valva elongate, narrowed to apex; costa nearly straight in basal 5/6; saccular margin broadly round; sacculus long-setose, with dentiform process at distal end; apical area lobate, densely setose; phallus short with one large, strongly-curved spiniform cornutus and eight straight, spiniform cornuti in various length. Female genitalia ( Fig. 3B View Fig ) with papillae anales subtriangular, densely setose; apophyses anteriores as long as apophyses posteriores; ostium bursae small; ductus bursae greatly dilated in posterior 2/3, with sclerotized areas internally; corpus bursae as long as ductus bursae, blobular; signum absent.

Material examined. 1♂ 2$, Chungcheongnam-do, Tean-gun, Wonbug-myeon, Sindu-ri sand-dunes, 3 June 2003 (JC Sohn), GJUE & NIBR ; 1$, ditto, 1 September 2005 (JC Sohn), [ GSN] SJC-457, GJUE .

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Distribution. Korea (new record), Japan.

Host plants. Unknown.

Remarks. Sasaki (2012) hinted the association of this species with coastal sand-dunes. The present data corroborates his proposal. The genus Maliarpha Ragonot, 1888 is reported for the first time from Korea. It currently comprises eight species occurring in East Asia, India, Papua New Guinea, and Ethiopian regions.