Ecpyrrhorrhoe rubiginalis ( Hübner, 1796 )

Shin, Bora, Choi, Sei-Woong & Kim, Sung-Soo, 2022, Fourteen new records of Crambidae (Lepidoptera) from South Korea, Zootaxa 5159 (4), pp. 513-534 : 521-522

Ecpyrrhorrhoe rubiginalis ( Hübner, 1796)

( Figs. 1F , 3F )

Pyralis rubiginalis Hübner, 1796: 22 , pl. 12, fig. 79. TL: Austria, Vienna. Poland, Niemierow.

Ecpyrrhorrhoe rubiginalis: Hübner, [1825] 1816: 356 .

Botys rubiginalis: Treitschke, 1829: 87 .

Ebulea rubiginalis: Guenée, 1854: 363 .

Pionea rubiginalis: Hampson, 1899b: 248

Pyrausta rubiginalis: Spuler, 1910: 232 .

Udea[sic] rubriginalis : Shibuya, 1929: 219.

Pionea rubiginalis delimbalis Schawerda, 1913: 170 (infrasubsp.). TL: Bosnia, Herzegovina.

Perinephele [Pionea] rubiginalis f. microlimbalis Amsel, 1959: 25 , pl. 1, fig. 17 (infrasubsp.). TL: Iran, Tahergourabe.

Pionea rubiginalis f. denigratalis Hartig & Amsel, 1952: 62 . TL: Italy, Sardinia.

Material examined. 1 female, Wonmul-orum, JJ: Seogwipo, 2019.06.07. (Kim SS).

Diagnosis. Ecpyrrhorrhoe rubiginalis can be diagnosed by the dark ochreous forewing with strongly dentate and semi-rounded outwardly projected postmedial line, the long discal dot that meets the postmedial line, and the dark ochreous hindwing with blackish weakly dentate postmedial line. This species is externally similar to Lamprophaia albifimbrialis ( Walker, 1866) in wing pattern elements, but can be distinguished by the relatively smaller wingspan and strongly dentate postmedial line of the forewing.

Description. Wingspan 16mm. Head. Antenna filiform, frons broad, middle dark ochreous, edge lined with light yellow scales; maxillary palpi minute, dark brown; labial palpi long, about twice to eye diameter, 1 st segment whitish, 2 nd segment laterally dark brown and dark ochreous scales. Body whitish. Forewing dark ochreous in ground color; antemedial line dark brown, strongly undulating, dorsally strongly bent; postmedial line dark brown, dentate, medial part strongly projected outward; central fascia tinged with dark ochreous or dark brown scales, strongly tapered from costa to median, discal dot long, lunular, dark brown; subtermen with a dark brown undulating line; termen dark brown. Hindwing ochreous in ground color; basal and medial parts tinged with blackish; postmedial line dark brown, weakly dentate, medially strongly projected outward; termen costally with broad dark brown band, which gradually reduced to tornus. Male genitalia (based on the website, https://lepiforum.org/). Uncus basally thick, strongly tapered distally, setose, apex obtuse; juxta narrow, rocket-shaped, laterally sclerotized; saccus triangular. Valva slender, hairy, distally broad; costa straight, basally thicker and gradually narrowed; fibula a large rounded process with strong bristles on top, directed dorsally; sacculus membranous without sclerotization, triangular. Aedeagus rod-shaped, distally with three claw-like processes; cornuti with a patch of strong bristles and a bunch of spinular processes. Female genitalia. Papilla anales small, rounded; posterior apophyses thin, slender, about the length of 8 th segment; anterior apophyses thicker and longer than posterior apophyses, almost 1.5 times as long as posterior apophyses; ostium bursae large bowl shaped, laterally convex, medially with a pair of ball-shaped sclerotization; ductus bursae long, strongly curved in the middle, strongly sclerotized and broad colliculum anterior to ostium bursae that continuously extended in a line shaped process along the ductus; corpus bursae ovate, laterally with appendix bursae, signa with a large rhomboid sclerotized process and a small rectangular plate-shaped process.

Distribution. South Korea, Japan, China, Iran, and Europe.

DNA barcoding: One specimen from South Korea ( OK501204 ) was sequenced. The intraspecific genetic variance in E. rubiginalis was 1.3% (±0.8 SD), and the average genetic difference between E. rubiginalis and its relative, E. celatalis ( Walker, 1859) was 9.6%.

Remarks. The genus Ecpyrrhorrhoe comprises 12 species worldwide, and the high species diversity occurs in the temperate Asian region ( Zhang et al., 2004). The monophyly of the genus was proposed based on morphology ( Mally et al., 2019). In South Korea, two species of Ecpyrrhorrhoe are known including E. rubiginalis . The larvae feed on Stachys officinalis , Galeopsis tetrahit , and Ballota nigra (Lamiaceae) .

Figures

FIGURE 1. Adults of 14 species newly recorded from Korea. Scale bar=5 mm. A. Paracymoriza distinctalis, B. Pseudocatharylla duplicellus, C. Psammotis orientalis, D. Anania albeoverbascalis, E. Anania stachydalis, F. Ecpyrrhorrhoe rubiginalis, G. Scoparia iwasakii, H. Haritalodes basipunctalis, I. Nagiella inferior, J. Notarcha aurolinealis, K. Herpetogramma okamotoi, L. Glyphodes formosanus, M. Mecyna fusei, and N. Udea tritalis.

FIGURE 3. Female genitalia of the Crambidae from Korea. Scale bar = 1mm. A. Paracymoriza distinctalis, B. Pseudocatharylla duplicellus, C. Psammotis orientalis, D. Anania albeoverbascalis, E. Anania stachydalis, F. Ecpyrrhorrhoe rubiginalis.