Loxocorys sericea ( Butler, 1879 )

Sohn, Jae-Cheon, 2023, Review of Loxocorys Meyrick, 1894 (Lepidoptera: Crambidae: Spilomelinae) with description of a new species from Korea and Taiwan, Journal of Natural History 57 (25 - 28), pp. 1304-1311 : 1309-1310

Loxocorys sericea ( Butler, 1879)

( Figures 1a, 1d , 2a, 2c–d )

Deana sericea Butler, 1879: 451 . Type locality: Japan .

Loxocorys sericea Meyrick 1894: 6 ; Matsui et al. 2023: 91.

Luma sericea Hampson 1896: 229 ; Leech 1901: 441; Matsumura 1905: 205.

Pelena sericea Shibuya 1928: 157 ; Shibuya 1929: 129; Sasaki and Yamanaka 2013: 434; Kim et al. 2017: 33.

Redescription

Habitus. ( Figure 2a ) Head: Vertex pale greyish orange; frons white, tinged with dark brownish grey laterally. Labial palpus with 1st and 2nd segments dark brownish grey laterally, white mesally; 1st segment 1/5 as long as 2nd; 3rd segment 2/5 as long as 2nd, dark brownish grey, paler apically. Antenna 1/2 as long as forewing; scape pale orange; flagellum lustrous, pale greyish orange. Thorax: Patagium, tegula and mesonotum pale brownish grey, forewing length 7.9–11 mm, dark brownish grey; costal patch yellowish orange on basal 3/5, interrupted by dark brownish-grey postmedian bar; discal spot quadrate, white, juxtaposed with dark brown wedge-form bar; postmedian line narrow, dark brown, juxtaposed with pale brownish-grey line, slightly curved; cilia pale brownish grey. Hindwing dark brownish grey; subbasal line incomplete on anal area, narrow, dark brown, juxtaposed with pale brownish-grey line; median line narrow, dark brown, juxtaposed with pale brownish-grey line, angulate medially. Male genitalia: ( Figure 2c–d ) Uncus subconical, with a pair of hairy humps laterally. Tegumen subquadrate. Valva triangular, pointed apically; sacculus covering most area of valva, triangularly protruding apically, setose; costal process narrow, digitate, setose; harpe digitate, curved, broadened basally, long-setose; saccus elongate, round apically, as long as costal process. Phallus ( Figure 2d ) slightly curved medially, broadened distally and at coecum; dorsal carina digitate, with a dentiform spine at distal 1/3; cornutal zone spinulate, as long as coecum.

Material examined

1J, Korea: Jeonnam Prov., Sinan-gun, Is . Jaeundo, Jaeun-myeon, Daeyul-ri, Mt. Dubongsan (34.881°N 126.056°E, alt. 98 m), 26 June 2022 (JC Sohn), GJUE .

Distribution

China, India, Japan, Korea, Taiwan ( Hampson 1896; Sasaki and Yamanaka 2013; Kim et al. 2017).

Figures

Figure 1. Generic characteristics of Loxocorys. (a) Head of L. sericea, lateral view; (b) head of L. curvilineata sp. nov., lateral view; (c) abdominal segment II with tympana and praecinctorium in L. sericea; (d) wing venation of L. sericea, after Hampson (1896); (e) wing venation of L. curvilineata sp. nov.

Figure 2. Adults of Loxocorys. (a) Habitus of L. sericea (after Kim et al. 2017); (b) habitus of L. curvilineata sp. nov., holotype; (c) male genitalia of L. sericea (after Kim et al. 2017); (d) phallus of L. sericea (after Kim et al. 2017); (e) male genitalia of L. curvilineata sp. nov., paratypes; (f–g) phallus of L. curvilineata sp. nov. (f – whole phallus; g – enlarged view of cornuti). Scale bars = 5 mm.