Mythimna subplacida (Sugi, 1977)

An, Jeong-Seop, Choi, Sei-Woong & Ronkay, László, 2013, New Noctuidae (s. l.) species from the Korean fauna with description of a new species of Bryophila Treitschke, 1825 (Lepidoptera: Erebidae and Noctuidae), Zootaxa 3734 (3), pp. 345-361 : 350

Mythimna subplacida (Sugi, 1977)

(Plate 3, figs 17–18; gen. fig. 12)

Aletia subplacida Sugi, 1977 , Tyo to Ga 28: 56, f. 2. Type locality: Taiwan, Wushe.

Records from Korea. 2 males, Prov. South Gyeongsang, Micheon-myun, Jinju-si, 152 m, 128°03’46”E, 35°19’33”N, 5.ix.2008, leg. J.S. An (coll. MNU); 1 male, Prov. South Gyeongsang, Macheon-myun, Hamyanggun, 760 m, 127°38’08”E, 35°21’18”N, 4.ix.2010 leg. J.S. An (coll. MNU); 3 males, South Gyeonsang, Uisin, Hwagae-myun, Hadong-gun, 702 m, 127°38’11”E, 35°18’21”N, 4.ix.2010, leg. S.W. Choi (coll. MNU); 1 male, North Jeolla, Unbong-eup, Namwon-si, 608 m, 127°33’22”E, 35°25’56”N, 21.ix.2008, leg. J.S. An (coll. MNU); 1 male, North Jeolla, Mt. Jiri, Sannae-myun, Namwon-si, 518 m, 127°34’57”E, 35°22’33”N, 22.vi.2010, leg. J.S. An (coll. MNU); 1 male, South Jeolla, Mt. Jiri, Gwangui-myun, Gurye-gun, 295 m, 127°28’41”E, 35°16’36”N, 25.ix.2008, leg. S.W. Choi (coll. MNU); 1 male, South Jeolla, Mt. Seungdal, Muan-gun, 200 m, 126°27’24”E, 34°55’07”N, 7.ix.2009, leg. S.W. Choi (coll. MNU); 2 females, Prov. South Gyeongsang, Uisin, Hwagae-myun, Hadong-gun, 702 m, 127°38’11”E, 35°18’21”N, 4.ix.2010, leg. S.W. Choi (coll. MNU); 1 female, Prov. South Gyeongsang, Chahwang-myun, Sancheong-gun, 358 m, 127°56’20”E, 35°26’36”N, 5.ix.2008, leg. S.W. Choi (coll. MNU); 1 female, Prov. North Jeolla, Unbong-eup, Namwon-si, 608 m, 127°33’22”E, 35°25’56”N, 21.ix.2008, leg. J.S. An (coll. MNU); 2 females, Prov. South Jeolla, Mt. Jiri, Gwangui-myun, Gurye-gun, 660 m, 127°29’39”E, 35°17’31”N, 20.iv.2007, 8.VI.2010, leg. S.W. Choi (coll. MNU); 1 female, Prov. South Jeolla, Mt. Jiri, Toji-myun, Gurye-gun, 1371 m, 127°33’09”E, 35°18’01”N, 20.vi.2007, leg. S.W. Choi (coll. MNU); 2 females, Prov. South Jeolla, Mt. Jiri, Sandong-myun, Gurye-gun, 923 m, 127°31’23”E, 35°19’22”N, 4.ix.2010, leg. J.S. An (coll. MNU); 1 female, Prov. South Jeolla, Mt. Jiri, Sandong-myun, Gurye-gun 1352 m, 127°31’58”E, 35°17’38”N, 31.viii.2011, leg. J.S. An (coll. MNU); 1 female, Prov. Dorim-ri, Cheonggye-myun, Muan-gun, 92 m, 126°26’59”E, 34°54’54”N, 7.ix.2009, leg. S.W. Choi (coll. MNU); 2 females, Prov. South Jeolla, Dalsan-ri, Mongtan-myun, Muan-gun, 154 m, 126°27’19”E, 34°54’55”N, 16.vii.2010, leg. J.S. An (coll. MNU); 1 female, Prov. South Jeolla, Dokgeodo Island, Jodo-myun, Jindo-gun, 54 m, 120°10’50”E, 34°15’19”N, 18.vi.2009, leg. S.W. Choi (coll. MNU). Slide No. RL 10670m (male).

Diagnosis. The species differs externally from its closely related Pacific Asian congeners, M. placida (Butler, 1878) and M. bani (Sugi, 1977) by the much stronger dark patch around reniform stigma; the orbicular stigma is also better visible due to its paler filling. The male genitalia are illustrated in the gen. fig. 12 and in the original description; they differ from those of the related taxa by the shape of the cucullus and the length and armature of the vesica (see also Kononenko & Han 2007).

Distribution. Taiwan, Korea. The species was known to occur only in Taiwan, these are the first records outside the island of Formosa.