Liocrobyla desmodiella Kuroko, 1982

Kim, Da-Som, Lee, Ji-Young & Byun, Bong-Kyu, 2023, Review of the genus Liocrobyla (Lepidoptera, Gracillariidae, Ornixolinae) from Korea, with description of one newly-recorded species, Biodiversity Data Journal 11, pp. 115509-115509 : 115509

Liocrobyla desmodiella Kuroko, 1982

Liocrobyla desmodiella Kuroko, 1982: 185. TL: Japan. TD: ELKU (Holotype); EIHU, NHMUK (Paratypes).

Liocrobyla paraschista Meyrick: Kuroko, 1960: 2. Misidentification.

Materials

Type status: Other material. Occurrence : individualCount: 1; sex: male; otherCatalogNumbers: gen.slide no. HNUSEL-5319; Taxon : taxonID: HNU_DNA_1860; scientificNameID: Liocrobyla desmodiella Kuroko , 1982; phylum: Arthropoda ; class: Insecta ; order: Lepidoptera ; family: Gracillariidae ; genus: Liocrobyla ; Location : country: South Korea; stateProvince: Gangwon-do ; county: Samcheok-si; verbatimLatitude: 37°25 ’10.63”; verbatimLongitude: 127°54 ’11.50”; Event: year: 2014; month: 7; day: 10 Type status: Other material. Occurrence: individualCount: 1; sex: male; otherCatalogNumbers: gen.slide no. HNUSEL-5319; Taxon : taxonID: HNU_DNA_1861; scientificNameID: Liocrobyla desmodiella Kuroko , 1982; phylum: Arthropoda ; class: Insecta ; order: Lepidoptera ; family: Gracillariidae ; genus: Liocrobyla ; Location : country: South Korea; stateProvince: Gangwon-do ; county: Hoengseong-gun; verbatimLatitude: 37 º 35'44.60"; verbatimLongitude: 128 º14'39.81”; Event: year: 2018; month: 8; day: 9

Description

Redescription

Adult (Fig. 1 B). Head silvery-white mixed with goldish pale brown; frons white mixed with fuscous and a tuft of blackish-brown near each eye; maxillary palpus white and lateral side fuscous; labial palpus white, apex of first segment fuscous and a fuscous spot on apical of second segment; antenna ochrous and apical of each segment greyish; scape white dorsally with a ventral blackish stripe. Thorax white mixed with pale ochrous and greyish scales; tegula same colouration as thorax and darker grey posteriorly; legs white; fore coxa greyish fuscous with a white band on apical part; fore femur fuscous; fore tibia fuscous, except for ventral median part; fore tarsus with two pale fuscous bands on median and second and third segment to last fuscous; middle femur greyish-ochrous; middle tarsus fuscous at basal part with two fuscous bands on median part and second and third segment to last dark fuscous. Wingspan 7.0-8.0 mm. Forewing ground colour greyish fuscous; a goldish-ochrous stripe along dorsal margin on basal to subapical part; a short white streak on 1/6 and 1/3 to base just above outer marginal stripe; first white costa-stria begins at 1/3 to basal part, stretched along costal margin to median and obliquely reaching to outer marginal ochrous stripe across forewing longitudinally; rather triangular white stria on 2/3 to base; a short and narrow white stria near apex. Hind-wing lanceloate and ground colour grey.

Male genitalia (Fig. 2 G). Tegumen is membranous, as long as valva or slightly shorter and inner surface is covered with narrow setae sparsely. Valva is somewhat hammer-like, costal margin slightly sclerotised, slightly concave at 1/6 to apex on costal margin and outer margin concave at 1/4 to apex; stout setae along apex to costal margin on inner side of sclerotised area, setae much shorter on basal than apical part, a row of sclerotised teeth on apex to near median part and each tooth minute with slightly blunt apex. Vinculum reduced, rectangular and smoothly narrowed to saccus; saccus wide and apex blunt. Aedeagus slightly sclerotised on median part, bent-shaped, narrowed to apex, apex bevelled and coiled with wrinkles at median part.

Distribution

Korea, China, Japan, Russia.

Notes

This species was reported for the first time from Korea by Kim and Byun (2019).

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Figures

Figure 1. Adults of genus Liocrobyla. A. L. brachybotrys (gen. slide no. HNUSEL- 5529); B. L. desmodiella (gen. slide no. HNUSEL- 5321); C. L. indigofera (gen. slide no. HNUSEL- 5530); D. L. kumatai (gen. slide no. HNUSEL- 5528); E. L. lobata (gen. slide no. HNUSEL- 5320).

Figure 2. Male and Female genitalia of Liocrobyla: F. L. brachybotrys (♂, gen. slide no. HNUSEL- 5529), G. L. desmodiella (♂, gen. slide no. HNUSEL- 5319), H. L. indigofera (♀, gen. slide no. HNUSEL- 5530), I. L. kumatai (♀, gen. slide no. HNUSEL- 5528), J. L. lobata (♀, gen. slide no. HNUSEL- 5320) (scale bars: 0.5 mm).