Eurhadina dongwolensis Oh et Jung

Oh, Sumin, Lim, Jongok & Jung, Sunghoon, 2016, A new species of the genus Eurhadina Haupt (Hemiptera: Auchenorrhyncha: Cicadellidae: Typhlocybinae) from Korea, with a key to Korean species, Zootaxa 4103 (1) : -

Eurhadina dongwolensis Oh et Jung , sp. nov.

( Figs. 1–11 )

Description. Body entirely pale yellow. Vertex, face and pronotum pale yellow without dark markings ( Fig. 1 ). Between the height and width of the central portion of the eye and the crown almost equal. Crown only slightly produced medially. Forewing pale yellow with two dark brown oblique lines along costal margin, two additional lines just distad of clavus, and preapical area translucent with pale brown pattern and one dark brown spot on M1+2 vein ( Fig. 3 ). Legs yellow without pattern. Male abdomen yellow with pair of dark spots on sternite III ( Fig. 2 ). Female as in male except abdomen without dark spots. Male abdominal apodemes thick and dark, broadened distally and extended to segment V ( Fig. 7 ).

Male genitalia. Pygofer side distinctly bilobed apically with scattered microsetae, upper lobe with 5 microsetae ( Fig. 11 ). Disc of lower lobe with several scattered microsetae. Subgenital plate with 1 long macroseta near base and several short microsetae near apical margin, short rigid microsetae along apical margin; apical margin with one small well-sclerotized preapical projection ( Fig. 10 ). Style curved inner side and apex bent down and inner margin with row of microsetae ( Fig. 9 ). Aedeagus in caudal view antler shapes with paired preapical and apical processes; apical processes simple, unbranched, extended dorsolaterad; preapical processes extended dorsolaterad, each with 3 processes; aedeagal shaft strongly recurved in lateral view and G shaped, all processes extended slightly anterad ( Figs 5, 6 ). Connective Yshaped, arms slender and sinuate ( Fig. 8 ).

Measurements. Body length: males 3.5~ 3.8mm, females 3.5mm

Type materials. Holotype: [ CNU] ♂, Korea, Gongju-si, Banpo-myeon, Dongwol valley, 0 1. ix. 2014, coll. S. Oh.; Paratypes: [ CNU] 56♂♂, 1♀ same data as holotype.; [ CNU] 2♂♂, Korea, Geumsan-gun, Jinsan-myeon, Mt. Daedun, 29. vii. 2014, coll. S. Oh.

Host plants. Unknown

Distributions. Korea (Central)

Remarks. This species was collected with a light trap in a mixed maple and oak forest. It is similar to Eurhadina koreana Dworakowska 1971 , but differs as follows: 1) preapical process branched 3 parts and extended dorsolaterad; 2) apical process shorter than preapical process and U-shaped; 3) forewing oblique line not extended to anteapical cell; 4) pygofer side distinctly bilobed apically.

Etymology. The specific name is derived from the type locality, Dongwol Valley.

Figures

FIGURES 1 – 11. Eurhadina dongwolensis sp. nov.: 1. Habitus. 2. Male adult, ventral view. 3. Forewing. 4. Hindwing 5. Aedeagus, caudal view. 6. Aedeagus, lateral view. 7. Male abdominal apodemes. 8. Connective. 9. Style. 10. Subgenital plate. 11. Pygofer lobe, lateral view. Scales: 1 mm (Fig. 1 – 4), 0.1 mm (Fig. 5 – 11).