Dryodurgades tortilis, Zhang, Bin, 2011

Zhang, Bin, 2011, Review of the leafhopper genus Dryodurgades Zachvatkin (Hemiptera: Cicadellidae: Megophthalminae) with description of a new species from China, Zootaxa 3093, pp. 47-54 : 50-53

Dryodurgades tortilis sp. nov.

( Figs 3 , 6 , 9 , 21–29 )

Description (holotype). Ground color reddish brown with dark markings. Vertex ( Figs 3 , 6 ) yellowish brown with four dark brown maculae: two roundish large ones nearly equidistant between eyes and median line, two small adjacent to compound eyes. Face ( Fig. 6 ) reddish brown with several black maculae: one Y-shaped macula between ocelli; one dark longitudinal stripe on median area, pair of dark maculae adjacent to outer margin of ocelli. Frontoclypeus yellowish brown with pair of longitudinal stripes on lateral margin. Anteclypeus ( Fig. 6 ) with dark longitudinal stripe. Pronotum ( Figs 3 , 9 ) fulvous to reddish brown with four dark brown maculae: two small ones on anterior margin, another pair on median portion. Mesonotum ( Fig. 3 ) yellowish brown with basal triangles, dark. Scutellum ( Fig. 3 ) with dark macula on apical region. Forewings ( Figs 3 , 6 ) reddish brown, claval veins yellowish brown, corial veins dark brown.

Male genitalia. Pygofer ( Fig. 21 ) broad at base, caudal lobe semicircular, covered with stout setae, anal collar process well developed, apex acute. Subgenital plate ( Figs 21, 22 ), in lateral view, elongate, triangular; row of short sparse setae along 2/3 ventral surface. Style ( Figs 23, 24 ) in dorsal view, narrow and elongate; forked apically. Aedeagus ( Figs 24–26 ), in dorsal view, distinctly tortile; shaft compressed with three asymmetrical apical processes: one pair bifurcate process, leaf-shaped, each process with marginal denticle; other one bifurcate; dorsal apodeme well developed; gonopore apical.

Female. Similar in overall coloration to male, but paler. Seventh sternite ( Fig. 27 ) slightly truncated posteriorly. First valvula ( Fig. 28 ), in lateral view, dorsally curved medially, of uniform width except basally, apex acute. Second valvula ( Fig. 29 ), in lateral view, slightly curved dorsally, dorsal hyaline area on median part, near half of dorsal margin with approximately 10 large teeth, apex narrow then slightly acute.

Measurements. Male 4.13–4.75 mm long, head 1.50–1.57 mm wide across eyes, pronotum 1.38–1.43 mm wide. Female 4.38–4.76 mm long, head 1.50–1.59 mm wide across eyes, pronotum 1.44–1.50 mm wide.

Material examined: Holotype 3, China: Guizhou Prov., Kuankuoshui, 2010-06-05, Zhang Bin; Paratypes: 2 Ƥ, same data as holotype; 1 3, 2 Ƥ, Jiangsu Prov., Suzhou, Yuzhongqu, 2009-08-23, Zheng Yanli; 1 3, Jiangsu Prov., Baohuashan, 2009-08-21, Ni Junqian; 4 Ƥ, Guizhou Prov., Bijie, Yangshan, 2005-05-02, Yang Zaihua; 2 Ƥ, Zhejiang Prov., Guangfu, 2009-08-23, Ni Junqian.

Host plant. Artemisia annua L.

Distribution. China (Guizhou, Jiangsu, Zhejiang).

Remarks. The new species differs from the other members of Dryodurgades by body with ground color reddish brown, aedeagal shaft tortile and compressed with three processes making it asymmetrical.

Etymology. The specific name, tortilis , refers to the aedeagal shaft in dorsal view distinctly tortile.

Figures

FIGURES 1 – 3. Dryodurgades dorsal habitus, male. 1, D. formosanus (Matsumura); 2, D. lamellaris Vilbaste; D. tortilis sp. nov.

FIGURES 4 – 6. Dryodurgades lateral habitus, male. 4, D. formosanus (Matsumura); 5, D. lamellaris Vilbaste; 6. tortilis sp. nov.

FIGURES 7 – 9. Facial aspect of Dryodurgades, male. 7, D. formosanus (Matsumura); 8, D. lamellaris Vilbaste; 9, D. tortilis sp. nov.

FIGURES 21 – 29. Dryodurgades tortilis sp. nov. 21, genital capsule, lateral views; 22, subgenital plate, ventral view; 23, style, ventrolateral view; 24, style, connective and aedeagus, lateral views; 25, connective and aedeagus, ventral view; 26, apex of aedeagus, caudal view; 27, female seventh sternite, ventral view; 28, first valvulae, lateral views; 29, apex of second valvula, lateral view; DHA: dorsal hyaline area.