Rhagoba flavolineata Ko & Bayarsaikhan & Lee & Bae 2024, sp. nov.
Creators: name: Ko, Jae-Ho
name: Bayarsaikhan, Ulziijargal
name: Lee, Tak-Gi
name: Bae, Yang-Seop
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Crambidae
Rhagoba
Rhagoba flavolineata

description: Rhagoba flavolineata Ko & Bae, sp. nov.
(Figs. 3–5, 8, 10)
Type material. Holotype: ♂, LAOS: Phou Khao Khouay National Protected Area, Bolikhamsai Prov., 22 VII 2018 (Bae Y.S., Lee D.J., Ko J.H., Lee T.G., Jang J.M., Bayarsaikhan U.), (18°27´23.76”N 103°03´05.15”E Alt. 470 m), genitalia slide no. INU-7134L (Type deposited in NIBR). Paratypes (5 ♂, 2 ♀): LAOS: 1 ♂, 1 ♀, Phou Khao Khouay National Protected Area, Bolikhamsai Prov., 22 VII 2018 (Bae Y.S., Lee D.J., Ko J.H., Lee T.G., Jang J.M., Bayarsaikhan U.), (18°27´23.76”N 103°03´05.15”E Alt. 470 m), genitalia slide no. INU-7135L, 7136L; 1 ♂, Phou Khao Khouay National Protected Area, Bolikhamsai Prov., 28 VIII 2018 (Bae Y.S., Na S.M., Lee D.J., Ko J.H., Lee T.G., Cha Y.B., Jang J.M.), (18°27´23.76”N 103°03´05.15”E Alt. 470 m), genitalia slide no. INU-7133L; 2 ♂, 1 ♀, Phou Khao Khouay National Protected Area, Bolikhamsai Prov., 26 VII 2019 (Bae Y.S., Qi M.J., Lee D.J., Ko J.H., Lee T.G., Cha Y.B., Jang J.M.), (18°27´23.76”N 103°03´05.15”E Alt. 470 m), genitalia slide no. INU-7131L, 7132L, 7138L; 1 ♂, Phou Khao Khouay National Protected Area, Bolikhamsai Prov., 27 VII 2019 (Bae Y.S., Qi M.J., Lee D.J., Ko J.H., Lee T.G., Cha Y.B., Jang J.M.), (18°27´23.76”N 103°03´05.15”E Alt. 470 m), genitalia slide no. INU-7137L.
Diagnosis. Rhagoba flavolineata sp. nov. exhibits a strong metallic blue reflection on the thorax and translucent patches on the wings, similar to R. octomaculalis, and R. obvellata. However, it can be distinguished by the following characteristics (Figs. 1–3): the postmedial area of the forewing has two semicircular translucent patches (orbicular or reniform patch in R. octomaculalis and R. obvellata); the hindwing has two large semicircular translucent patches (two small orbicular patches or absent in R. octomaculalis and R. obvellata); the abdomen has partly deep yellow bands (dark brown overall in R. octomaculalis and R. obvellata). In the male genitalia (Figs. 6–8), the apex of the uncus is nearly triangular (nearly spatulate in R. octomaculalis and R. obvellata); the fibula is caniniform (spine-shaped in R. octomaculalis and R. obvellata). In the female genitalia (Fig. 9–10 in this study, and Du & Li 2012, p. 370, 5B), the sclerotized part of the antrum is shorter than that of R. octomaculalis and R. obvellata.
Description. Adult (Figs. 3–5). Length of forewing 10–12 mm in both sexes. Vertex covered with dark brown mixed grayish yellow scales; frons covered with dark brown, metallic blue reflection scales; antenna filiform, scape covered with dark brown, metallic blue reflection scales; ocellus well-developed; chaetosemata absent; labial palpus upturned, grayish yellow mixed with dark brown scales; maxillary palpus porrect, covered with dark brown scales; proboscis well-developed, grayish yellow mixed with dark brown scales. Patagium and tegula dark brown, metallic blue reflection scales. Ground color of forewing dark brown; median area with a subreniform and claviform translucent patches; postmedial area with a large oviform translucent patch, and a dark brown line transversing in the center; fringe dark brown, except white from CuA 1 to M 3. Ground color of hindwing dark brown; basal area with a large reniform translucent patch; postmedial area with a large subreniform patch; fringe dark brown, except white from 2A to 1A. Abdomen dark brown, except deep yellow from third to sixth segments; deep yellow segments with dark brown lines at posterior part of each segment.
Male genitalia (Fig. 8). Uncus nearly triangular, densely setose at apex; valva ovoid, membranous and with a weakly sclerotized band transversing valva; fibula small, caniniform; sacculus well-developed, strongly sclerotized; juxta guttiform, sclerotized; saccus U-shaped; phallus cylindrical, sclerotized basally, with a rod-shaped cornutus.
Female genitalia (Fig. 10). Papillae anales ovate; posterior apophyses almost same length as anterior apophyses; antrum funnel-shaped, sclerotized; ductus seminalis from near posterior end of antrum; ductus bursae membranous, about 2 times length of corpus bursae; corpus bursae ovate, with two small ovoid signa.
Distribution. Laos.
Etymology. The specific name is derived from the Latin word flavolineata, which refers to the deep yellow abdomen.
description: Published as part of Ko, Jae-Ho, Bayarsaikhan, Ulziijargal, Lee, Tak-Gi & Bae, Yang-Seop, 2024, Review of the genus Rhagoba Moore, 1888 (Lepidoptera, Crambidae, Spilomelinae) from Laos, with a description of new species, pp. 127-134 in Zootaxa 5443 (1) on pages 130-133, DOI: 10.11646/zootaxa.5443.1.7, http://zenodo.org/record/10997130