Micronoctua occi Fibiger & Kononenko

Fibiger, Michael & Kononenko, Vladimir S., 2008, Revision of the Micronoctuidae species occurring in the Russian Far East and neighbouring countries with description of a new species (Lepidoptera, Noctuoidea), Zootaxa 1890, pp. 50-58 : 52-55

Micronoctua occi Fibiger & Kononenko , new species

( Figs. 1, 2 , 7 , 10 , 13 )

Type Material. Holotype. female, RUSSIA, Primorye terr., Gornotaezhnoe, 20 km E Ussurisk, 19.vii.1999, M. Fibiger & V.S. Kononenko leg., coll. M. Fibiger, to be deposited in coll. ZMUC. Paratypes. 43 males and 37 females:

RUSSIA: 1 male, Primorye terr., Ussuriisky Region, 20 km NW Kraunovka, 2–12.viii.1999, S. Sinev leg., coll. & genit prep. 3666 M. Fibiger; 2 males and 2 females, Primorye terr., Gornotaezhnoe, 30.vii., 2.viii., 12.viii.1999, S. Sinev, genit leg., preps 3666, 3667, 3674 M. Fibiger; 1 female, Primorye terr., Anisimovka, 25.vii.1998, M. Ponomarenko & E. Beljaev leg., genit. prep. 3251 M. Fibiger, colls. ZIN, IBSS, and MF.

NORTH KOREA: 1 male, 1 female, North Korea, Mts. Seolak-san, north side, viii.1992, L. Ronkay & A. Vojnits leg., coll. HNHM.

SOUTH KOREA: 1 male, Ori Dong, 28.viii.1953, W.F.K. Thompson leg., B.M.1954-428; 2 males, Mt. Seolak, 25.viii.1989, K.T. Park leg., genit. preps 355, 356 KSS; 2 male, 1 female, Kangwon S, 12 km NE Chuncheon, 15–16.viii.1992, L. Ronkay & A. Vojnits leg., coll. HNHM; 2 males, 3 females, Kangwon S, Mats Seolak-san, 15 km W Sorak-plaza, 700 m, 17.viii.1992, L. Ronkay & A. Vojnits leg., coll. HNHM; 1 male, Ibseokdong JJ (Jeju Prov.), 30.vi.1994, B.K. Byun leg., colls KEIU, S.S. Kim, and MF. 1 ex., Kyeonggi Prov. Shiheung-Shi Mulwang reser. 11.vii.1996, M.K. Paek leg.; 2 exx., Kyeonggi Prov., Mt. Soya, 7. vii.1996, Bae, Paek, Lee & An leg.; 1 ex., Chuncheon, Mt. Seolak, 10.viii. 1989, K.T. Park & B.K. Byun leg.; 1 ex., Mt. Samak, 29. ix.1989, K.T. Park leg.; 2 exx., Uljin-Gun, Mt. Tonggo, 26–31. vi.2000, Bae et al. leg.; 2 exx., Choogokri, Chuncheon GW, 2. ix.1996, N.K. Lee and J.S. Lee leg.; 2 exx., Mt. Pekun-san, JN, 19.vii.1989; 19.vii.1992; K.T. Park & B.K. Byun leg.; 1 ex., Bongmyon–ri GW 30 vi.1992, K.T. Park & B.K. Byun leg.; 1 ex., Bongue, GW 16.vii.1992, K.T. Park & C.J. Lee leg.; 1 ex. Ansan-shi Is., Dsebu, 30.viii.1997, M.K. Paek leg.; 2 exx. Taebaek GW 22.viii, 6 ix.2000, Eom Hun Sik leg.; 1 ex., Hwacheon, Haesangroung GW, 16.v. 2003, H.L. Han leg.; 1 ex., near Haembok JJ (Jeju Prov.), 11.viii 1993, K.T. Park & B.K. Byun leg.; 1 ex., Mt. Mieongjisan, 28.vi.2000, N.S. Bang & H.S. Eom leg.; 1 ex., Prov. Chunnam, Mt. Duryun, 15.vii.1999, J.C. Sohn leg., coll. CIS, Chuncheon.

CHINA: 1 male, Prov. Guandong, ‘Dragenkopf’, R. Mell leg., coll. ZMHB; 4 males and 3 females, Prov. Chekiang, West Tien-mu-shan, 28,vii., 20.viii., 24,viii., 2.ix., 9.ix., 20.ix., 22.ix.1932, H. Höne leg., genit. preps 3233 m, 3234 f, 3235 m M. Fibiger, coll. ZFMK and MF; 1 female, Prov. Shanxi (W), Huoditang, 17.vi.1987, Chunsheng Wu leg.; 1 male and 1 female, Prov. Fujian, Mt. Meihuashan, 19.vii.1988, Chunsheng Wu leg., genit. prep m 3523 M. Fibiger; 1 male and 6 females, Prov. Fujian, Mt. Wuyishan, 30.vii–4.viii.1988, Chunsheng Wu leg.; 3 male and 5 females, Prov. Zhejiang, Mt. Tianmushan, 12–14.ix.1989, Chunsheng Wu leg., genit. prep. 3252 f M. Fibiger, colls IZCAS and MF.

JAPAN: 1 male, Tsushima Island, Tatarayama, 14.viii.1989, T. Mano leg., genit. prep. 6973 S. Sugi; 1 male, Tsushima Island, 6.x.1973, T. Watanabe leg., genit. prep. 5836 M. Fibiger, colls APMJ and NSMT; 3 males, Tsushima, Kamitsushima, Izumi, 20 m, 12.vi.2005, M. Owada leg., coll. NSMT; 6 males, 4 female, Tsushima, Kamiagata, Mt. Yamadayama, 200 m, 11, 12.ix.2006, M. Owada leg., coll. NSMT and MF.

Diagnosis. No other species in Russia and Far Eastern countries resembles M. occi .

Description. Imago ( Figs. 1, 2 ). Wingspan 10.5–10.5 mm. Resting position flat, with forewing hind margins against each other. Hindwing venation bifid. Labial palps slightly upturned, brownish-grey, with lighter inner side, 2nd segment 3.5 times as long as 3rd. Antennae of both sexes ciliate. Head, patagia, prothorax, and costal part of basal area blackish; rest of thorax and ground colour of forewing unicolorous yellowish, except for dark grey terminal area and fringes; costa with black streaks, the medial, large patch reaching 3/5 from apex. All cross-lines of forewing present, but indistinct, white; reniform stigma beige, brownish outlined. Hindwing unicolorous grey, with a blackish discal spot. Forewing underside unicolorous brown; hindwing underside beige brown, with a discal spot. Abdomen greyish brown. Male genitalia ( Fig. 7 ). 8th tergite and sternite membranous. Uncus lost. Tegumen narrow, stick-like; vinculum narrow, curving; saccus broad, triangular. Valva more heavily sclerotised on ventral and dorsal margins than in middle; ampulla triangular, 1.5 times wider than long, posteriorly with long, inwardly directed setae; digitus long, finger-like, medially curved; juxta-anellus plate higher than wide, heavily sclerotised, median hole marks the position of aedeagus; aedeagus sharply curved upwards 2/3 from base, tapered; vesica unarmed. Female genitalia ( Fig. 10 ). Ovipositor quadrangular; interlobal round patch between ovipositor lobes absent. Posterior apophyses as long as length of ovipositor. 8th abdominal segment equally long on dorsal and lateral sides, on ventral side extended anteriorly to ostium bursae; position of ostium bursae (which belongs to the 8th segment) medial, by the 7th abdominal segment; antrum very short, heavily sclerotised; ductus bursae membranous, very long; ductus seminalis inserted 2/3 up on ductus bursae; corpus bursae globular (collapsed in the illustrated preparation); a cross-shaped signum present.

Bionomics and distribution ( Figs. 5, 6 , 13 ). In Russia, Primorye, M. occi occurs in rich broadleaved forests at low and medium elevations (100–300 m). It is not a common species. The moths are attracted to UV light. The flight period is from mid July to mid August. The early stages are unknown. M. occi is recorded from south of the Russian Far East (Primorye Territory) to Central and East China, and North and South Korea and Jeju Island. In Japan known only from the Tsushima Islands in the Korean Strait.

Note. The species has been found in Korean collections and dissected in the course of preparation of the Catalogue of Noctuidae in Korea ( Kononenko et al. 1998). However, because its systematic position was not clear, it was not included in the Catalogue. It was reported for Korea as Micronoctua sp. and illustrated with male and female genitalia by Kononenko & Han (2007). Micronoctua occi was listed by Kononenko (2005) from Russian Far East as Micronoctua sp. in the family Micronoctuidae .

Figures

FIGURES 1 – 6. Micronoctuidae sp., adults. 1, 2, Micronoctua occi, males, paratypes, South Korea; 3, Micronoctua karsholti, male, Turkey; 4, Mimachrostia fasciata, Russia, male, Khabarovsk Territory, Komsomolsk (50 ° 31 N, 137 ° 035 E); 5, 6, Broadleaved forest in south of Primorye Territory, Russia, typical habitat of Micronoctua occi and Mimachrostia fasciata.

FIGURES 7 – 9. Micronoctuidae sp., male genitalia. 7, Micronoctua occi, paratype, South Korea, Praep. 971218 / 14 VSK; 8. Micronoctua karsholti, Turkey, Prep. MF; 9, Mimachrostia fasciata, Russia, Primorye, Prep. 3623 MF.

FIGURES 10 – 12. Micronoctuidae sp., female genitalia. 10, Micronoctua occi, females South Korea, Praep. 2818 Byun, KNA; 11, Micronoctua karsholti, female, Turkey, Prep. MF; 12, Mimachrostia fasciata, Russia, Prep. MF.

FIGURES 13 – 14. Distribution maps for Micronoctua occi (13) and Mimachrostia fasciata (14).