Meganola mikabo ( Inoue, 1970 )

Cha, Yeong-Bin, Oh, Sung-Hwan, Bayarsaikhan, Ulziijargal, Na, Sol-Moon, Lee, Dong-June, Ko, Jae-Ho, Lee, Tak-Gi, Kim, Hyeong-Kyu, Jang, Chang-Moon & Bae, Yang-Seop, 2019, Review of the genus Meganola Dyar, 1898 (Lepidoptera: Nolidae, Nolinae) from Korea, with the description of a new species, Zootaxa 4686 (2), pp. 215-240 : 224

Meganola mikabo ( Inoue, 1970)

( Figs 8 , 19 , 31 )

Roeselia mikabo Inoue, 1970: 4 . TL: Japan (Mt. Mikaboyama, Gunma Pref.).

Meganola fuscofasciata Oh, 1991: 82 [unpublished].

Rhynchopalpus micabo Tshistjakov, 2008: 13 (misspelling).

Meganola mikabo: Inoue, 1982: 665 ; Sasaki, 2011: 178.

Diagnosis. This species is similar to M. mediofascia ( Inoue, 1958) but can be distinguished from it by the following characters: ground color of forewing pale gray; antemedial line in zigzag, indistinct medial fascia present; male genitalia with pseudouncus tapering, without subscaphium; harpe dentated, finger-shaped; saccus almost same length than pseudouncus; aedeagus sclelrotized, pointed apex without cornutus; female genitalia with ostium bursae tubular, weakly sclerotized; ductus bursae membranous, right angle at ostium bursae; and corpus bursae ovoid, with two spinous signa, one of them located posterior of corpus bursae, another one opposite anterior.

Redescription. Adult ( Figs 8a, b ). Wingspan 18–20 mm in both sexes. Head and thorax gray in both sexes. Ground color of forewing gray in male, with dark brown basal patch in half of costal margin; dark brown antemedial line in zigzag; dark brown medial band diffuse basally, band broad; postmedial line broadly waved in outerline near costa; brown subterminal line waved; cilia gray, mixed with brown scales. Ground color of hindwing gray; cilia gray in male, in female darker than male. Male genitalia ( Fig 19 ). Pseudouncus tapering, weakly covered with setae. Tegumen triangular, tumescent from below. Valva elongated rectangular, weakly curved inwardly, with blunt apex; costal margin of valva sclerotized. Harpe minute dentate dosally, finger-shaped. Saccus U-shaped. Aedeagus weakly sclerotized, pointed apex, without cornutus. Female genitalia ( Fig 31 ). Apophyses posteriores almost same length as anteriores. Ostium bursae tubular, weakly sclerotized. Ductus bursae membranous, right angle at ostium bursae. Corpus bursae ovoid, with two spinous signa, one of them located posterior of corpus bursae, another one opposite anterior; appendix bursae present.

Material examined. (9♂, 1♀) 1♂, Chunsung , Dongsan, 16. VIII. 1991 (S.B. Ahn), Gen. Slide No. INU-9043 ; 2♂, GW, Gotan , Chuncheon, 15. VIII, 1992 (K.T. Park & B.K. Byun), Gen. Slide No. INU-9103 ; 1♂, GW, Mokuje , 19. VIII. 1992 (K.T. Park & B.K. Byun), Gen. Slide No. INU-9100 ; 1♂, JJ, Seongpanak , 23. VIII. 1992 (K.T. Park & C.G. Lee) Gen. Slide No. INU-9104 ; 1♂, GW, Mokuje , 16. VIII. 1992 (K.T. Park & B.K. Byun), Gen. Slide No. INU-9101 ; 1♂, GW, Chuncheon , 30. VI. 1992 (S.H. Oh), Gen. Slide No. SH-361 ; 2♂, GW, Hongcheon , 5. VIII. 1989 (S.H. Oh), Gen. Slide No. SH-90 (No aedeagus), SH-180; [KNA] 1♀, CN, Duung-wetland , Sindu , Wonbuk, Taean (36˚50′09.28″N 126˚11′44.47″E), 24. VIII. 2015 (S.Y. Park, Y.M. Shin, M.H. Kim & J.W. Nam), Gen. Slide No. INU-9098 .

Distribution. Korea (CN, GW), Japan, Russia (Far East).

Hostplants. Russia: Quercus dentate ( Fagaceae ), ( Tshistjakov, 2008).

Remarks. This species was first recorded from Korea by Sasaki (2011). We checked genitalia slides of M. fuscofasciata Oh, 1991 [unpublished species] SH-90 (Holotype), 180 and 361; as a result, we treat it is a junior synonym of M. mikabo ( Inoue, 1970) .

Figures

FIGURES 5–8. Adults of genus Meganola spp. 5a. Meganola albula, male (INU-9126). 5b. ditto, female (INU-9125). 6a. Meganola costalis, male (INU-9124). 6b. ditto, female (INU-9154). 7. Meganola shimekii, female (INU-9018). 8a. M. mikabo, male (INU-9100). 8b. ditto, female (INU-9098). (Scale bar = 1cm)

FIGURES 19–21. Male genitalia of Meganola spp. (a: male genitalia, b: aedeagus, c: enlarged uncus, d: enlarged harpe). 19. Meganola mikabo (INU-9100). 20. Meganola mediofascia (INU-9091). 21. Meganola strigulosa (INU-9089). (Scale bar = 1mm)

FIGURES 30–31. Female genitalia of Meganola spp. 30. Meganola shimekii (INU-9018). 31. Meganola mikabo (INU-9098). (Scale bar = 1mm)