Eumonopyta Moriuti, 1977

Sohn, Jae-Cheon, 2020, New record of Eumonopyta Moriuti, 1977 (Lepidoptera, Yponomeutidae) from Korea, Journal of Species Research 9 (4), pp. 489-491 : 489-491

Eumonopyta Moriuti, 1977

Eumonopyta Moriuti, 1977: 201 . Type species: Eumonopyta unicornis Moriuti, 1977 .

This genus differs from Yponomeuta in the lack of the areole in the forewing, the presence of the hindwing veins, Sc and R 1 completely fused, the lack of the spinules on the gnathal processes, and the presence of three spiniform cornuti in the phallus.

The distributional range of the Eumonopyta is restricted to East Asia ( Korea, Japan and Taiwan), Southeast Asia ( Thailand), and South Asia ( India).

Eumonopyta unicornis Moriuti, 1977 ẅNjḏ나® ( Fig. 1 ) Eumonopyta unicornis Moriuti, 1977: 201 . Type locali-

ty: Japan, Tokyo, Sizenen.

Description. Head - Vertex gray, intermixed with pale gray scales laterally and anteriorly; frons dark gray. Antenna 1/2 as long as forewing; scape gray, intermixed with dark gray scales on distal half; flagellomeres gray. Labial palpus dark brownish gray on outer surface, pale gray on inner surface. Thorax - Patagium gray; tegula dark brownish gray, intermixed with grayish green scales on distal half; mesonotum gray, intermixed with grayish green scales on anterior 1/3 and pale gray scales on posterior margin; mesoscutellum dark brown. Forewing length 5.9-6.9 mm (n = 3), gray, intermixed with dark gray scales on costal area and grayish green scales on medial area; dark brown dots scattered on costal and medial areas; postmedian bar white, oblique from distal 1/10 of costa. Legs with coxa pale gray; femur, tibia and tarsi dark gray dorsally, pale gray ventrally. Male genitalia ( Fig. 1B ) - Uncus subrectangular; tuba analis weakly sclerotized ventrally. Socius elongate, tapered to apex, with cheliform seta apically. Tegumen oblique laterally; gnathos digitiform, 1/3 as long as socius. Valva broad, broadly round along ventral margin, hairy on ventral and basal areas; apex slightly protruding and curved inward; costa slightly concave at basal 1/3; sacculus 1/3 as long as ventral margin of valva, with dense-setose, elliptical zone on distal 1/4. Vinculum diverged; saccus elongate, 1/2 as long as socius. Phallus ( Fig. 1C ) narrow, slightly curved at basal 1/3, nearly as long as valva, with ringlike basal scape; three cornuti small, spiniform, with spinulate zone 1/2 as long as phallus. Female genitalia ( Fig. 1D ) - Papillae anales oblique ventrally, setose. A pair of setose humps on ventrite VIII small. Apophyses posteriores including basal forks as long as apophyses anteriores. Ostium bursae small, beyond ventrite VII. Ductus bursae very narrow, gradually dilated in distal 1/4; antrum 1/2 as long as papilla analis, funnel-shaped. Corpus bursae obovate, 1/6 as long as ductus bursae; signum absent.

Material examined. 1♂, Gyeongsangnam-do, Geojesi, Geojedo Island, Dongbu-myeon , Mt. Nojasan (N34°47′ 47.3″, E128°36′50.8″), 18 August 2017 (JC Sohn), NIBS . 1$, Jeollanam-do, Yeosu-si, Dolsando Island , 23 June 2017 (JC Sohn), genitalia slide no. SJC-1184, GJUE . 1♂, Jeju-do, Jejudo Island, Seogwipo-si, Sekdal-dong , 1100 point (N33°21′32.1″, E126°27′44.4″, alt. 1109 m), 1 August 2016 (JC Sohn), genitalia slide no. SJC-1073, GJUE .

Distribution. Korea (new record), Japan, Taiwan.

Remarks. The collecting records of this species suggest that Eumonopyta unicornis occurs broadly in the southern islands of Korea. It appears to be a rare species in Korea but confirmation of its residence is pending until information on the hostplants becomes available.

Figures

Fig. 1. Eumonopyta unicornis Moriuti.A. Habitus (scale bar=3 mm). B. Male genitalia. C. Phallus. D. Female genitalia.