Agnesiella (Draberiella) erosa, Yan, Bin & Yang, Mao-Fa, 2016

Yan, Bin & Yang, Mao-Fa, 2016, Three new species and one new record of the leafhopper genus Agnesiella Dworakowska, 1970 (Hemiptera: Cicadellidae: Typhlocybinae: Typhlocybini) from China, Zootaxa 4184 (3), pp. 529-540 : 534

Agnesiella (Draberiella) erosa sp. nov.

( Figs 9–16 , 40–48 )

Descriptions. Male. Vertex and thorax sordid dark brownish (somewhat ochre to reddish); crown with two dark brown spots near eyes, eyes pale reddish to dark brown ( Figs 9, 11 ). Frontoclypeal area sordid beige and anteclypeus dark brownish ( Fig. 12 ). Pronotum with 5 black spots (one on anteromedian margin, a pair anterolaterally and larger pair posterolaterally); scutum and scutellum dark brownish to ochre ( Fig. 11 ). Fore wing mostly sordid whitish with dark brownish pattern as in Fig. 42 , brochosome field infumated with black patches on both ends, cell 1 and median of cell 2 colorless and subhyaline, cell 3 and SCP+RA vein dark brown ( Figs 10 , 42 ). Hind wing colorless and subhyaline ( Fig. 43 ).

Female. Body general color more bright brown-reddish than male ( Figs 11, 15 ). Frontoclypeal area on face broader than male, and lorum with blackish ( Figs 12, 16 ).

Head broadly convex in front, anterior margin nearly parallel with hind margin, coronal suture extended to anterior margin of crown ( Figs 9, 11 ). Length of crown distinctly less than interocular width, width of crown less than width of pronotum ( Fig. 11 ). Fore wing apex rounded, with cell 2 largest, cell 1 and cell 4 substantially equal, cell 3 smallest and subtriangular with longer petiole ( Fig. 42 ).

Abdominal apodemes reaching apex of 6th abdominal sternite ( Fig. 44 ).

Male genital capsule in lateral view square ( Fig. 40 ). Pygpfer with two bands of setae bodering oblong area near ventral margin, large distal membranous part of candual margin with few stout dorsal setae, with single long recurved process on ventral margin ( Fig. 40 ). Subgenital plate curved dorsad with club-shaped, apex curved laterad ( Fig. 48 ). Paramere slender, with small preapical tooth and distal spine extend laterad ( Fig. 45 ). Connective Yshaped with stem as long as arms ( Fig. 41 ). Aedeagus dorsoatrium more developed than preatrium; shaft in lateral view, narrow in basal half, broad in apical half, with posterior serrate flange terminating in short posteroventrally curved spine, apex with pair of short, anteroventrally curved processes ( Figs 46, 47 ).

Material examined. Holotype, ♂, Luding, Ganzi , Sichuan Province, 2300m, 13 August 2015, Coll. Hongping Zhan . Paratypes, 3♂♂, 2♀♀, same data as holotype .

Etymology. The species name refers to the erosa posterior flange on the aedeagus.

Remarks. The new species differs from all others of the genus in having the aedeagus in lateral view narrow in the basal half, broad in the apical half, with a serrate posterior flange.

Figures

FIGURES 1 – 16. Habits (dorsal view and lateral view) and face. 1 – 8, Agnesiella (Draberiella) xantha sp. nov., 1 – 4, Male, 5 – 8, Female; 9 – 16, Agnesiella (Draberiella) erosa sp. nov., 9 – 12, Male, 13 – 16, Female. Scale: 0.5 mm.

FIGURES 40 – 48. Agnesiella (Draberiella) erosa sp. nov. 40, pygofer, lateral view. 41, connective, ventral view. 42, fore wing. 43, hind wing. 44, abdominal apodemes. 45, paramere, ventral view. 46, aedeagus, posterior view. 47, aedeagus, lateral view. 48, subgenital plate, ventral view.