Acrolepiopsis quinquelobatae Jeong & Byun, 2025

Acrolepiopsis quinquelobatae Jeong & Byun sp. nov.

Materials

Type status: Holotype. Occurrence: catalogNumber: HNU_DNA_10049 ; recordedBy: UH Heo; individualCount: 1; sex: male; lifeStage: adult; otherCatalogNumbers: gen. slide no. HNUSEL-1297, DNA barcode Accession number (GenBank) PV 748140 ; occurrenceID: 1D175540-5FA9-501B-9E6F-487D20686876; Taxon: order: Lepidoptera ; family: Glyphipterigidae ; genus: Acrolepiopsis ; Location: country: Korea; stateProvince: GW; locality: Chuncheon-si, Mt. Geumbyeong ; Event: year: 2023; month: vii; day: 28

Type status: Paratype. Occurrence: catalogNumber: HNU_DNA_10048 , 10050 , 10051 , 10052 ; recordedBy: UH Heo; individualCount: 4; sex: 1 female, 3 exs (abdomens missing); lifeStage: adult; otherCatalogNumbers: gen. slide no. HNUSEL-1295, DNA barcode Accession number (GenBank) PV 748138 , PV 748139 , PV 748141 , PV 748142 .; Taxon: order: Lepidoptera ; family: Glyphipterigidae ; genus: Acrolepiopsis ; Location: country: Korea; stateProvince: GW; locality: Chuncheon-si, Mt. Geumbyeong ; Event: year: 2023; month: vii; day: 28

Description

Adult (Fig. 2 a View Figure 2 a ). Wingspan 8.0-9.0 mm.

Head: Covered with a dense patch of bright ochreous scales; antennae light brown, with scattered black rings; labial palpus straight, black dorsally, and brown ventrally.

Thorax: Black, mixed with dark brown scales; tegular covered with black scales. Legs dark silvery-white; fore- and hind tibia deep fuscous, and white ring in middle; hind tarsus black with alternating white bands. Fore-wing ground colour black, scattered with irregular light brown spots and several small white spots along margins; gradually darkened to deep black towards the apex. Costal streaks short yellow-ochreous spots, with 5–6 evenly spaced along the middle of outer margin; dorsal streaks located at 1 / 3 of hind margin, twice as long and thick as costal streaks, forming white triangular shapes. Hind-wings light grey, lanceolate, and gradually tapering towards tip.

Abdomen: Brown with a light grey colour.

Male genitalia (Fig. 3 a View Figure 3 a ). Anal tube thick, membranous, and elongated arch-shape. Anellus has a sclerotised edge, forming an arch that gradually tapers towards tip, and half the length of anal tube. Valva narrows towards tip with slight curve, 7-8 long setae in middle of inner edge and short setae covering the tip. Sacculus rounded, swollen, covered halfway with long setae as long as valva. Saccus 1.7 times longer than valva, gradually tapering and becoming rounded towards tip, and surrounded by membranous structure. Aedeagus as long as the entire genitalia, gradually narrowing from 1 / 6 point and maintaining same thickness from 2 / 5 point to tip.

Female genitalia (Fig. 3 b View Figure 3 b ). Apophyses anteriores and apophyses posteriores equal in length. Apophyses posteriores curve once at 1 / 3 point and again at the 2 / 3 point. Antrum flat, and sclerotised border. Ostium bursae narrow, circular shape with a sclerotised edge. Ductus bursae twice as long as apophyses posteriores, thick and sclerotised for first half, while remaining portion thin and membranous. Corpus bursae twice as long as apophyses anteriores, thin, membranous oval shape, with 2 / 3 region being thickened and wrinkled. Signa absent.

Diagnosis

This species is very similar to Acrolepiopsis nagaimo Yasuda, 2000 , but it can be distinguished by the more pointed fore-wings and yellowish-brown costal streaks, as well as by the male genitalia, which have a longer and more slender aedeagus. ( Yasuda 2000).

Etymology

The specific name quinquelobatae is derived from the genitive form of the plant name Dioscorea quinquelobata , indicating the host plant from which this species was reared.

Distribution

Korea (endemic).

Notes

This new species, Acrolepiopsis quinquelobatae sp. nov., shows a distinct genetic divergence from the closely-related Korean species A. nagaimo , with a genetic distance ranging from 9.0-10.8 % (Fig. 1 View Figure 1 ). In addition, a comparison with A. orchidophaga , which has a similar genital morphology, reveals that the male genitalia of A. quinquelobatae has a more slender valva and saccus, and the female genitalia is distinguished by a circular-shaped ostium bursae. The larva was reared on Dioscorea quinquelobata Thunb.

Host plant

The holotype and paratypes were obtained by rearing larvae on the host plant, Dioscorea quinquelobata Thunb. [ Dioscoreaceae ].