Neodurium weiningensis Zhang & Chen, 2008

Zhang, Zheng-Guang & Chen, Xiang-Sheng, 2008, Two new species of the Oriental genus Neodurium Fennah (Hemiptera: Fulgoromorpha: Issidae) from Southwest China, Zootaxa 1785 (1), pp. 63-68 : 65-66

1. Neodurium weiningensis Zhang & Chen , sp. nov.

( Figs.1–9 )

Description: Body length (incl. tegm.): ♂ 5.4mm, ♀ 5.5mm; tegminal length: ♂ 4.4mm, ♀ 4.5mm.

Coloration: Body yellowish brown. Vertex brown. Eyes dark brown. Frons dark brown with yellowish brown in lateral margins. Clypeus brown with dark brown stripes. Rostrum brown. Antenna dark brown. Pronotum yellowish brown; Mesonotum dark brown. Tegmina yellowish brown with dark brown spots, hindwings pale brown. Legs brown with dark brown spots or stripes. Abdomen ventrally dark brown.

Head and thorax: Vertex ( Fig.1 ) pentagonal, apical margin obtusely angulately convex, posterior margin subrectangulately excavate, 1.6 times wider at base than long in middle line, margins subfoliate, disc excavate. Frons ( Fig.2 ) with median carina, 1.4 times longer in middle line than the widest part, with median carina and lateral carina, two sublateral carinae reaching to and ending at lateral margins. Clypeus disc convex, with diagonal stripes in lateral margins. Rostrum slightly surpassing mesotrochanters. Pronotum with a small pit near midline on each side, without median carinae. Mesonotum triangular, with median carinae, each side with a convexity. Tegmina ( Fig.3 ) subquadrate, longitudinal veins distinct, without cross veins. Radius and Mediana simple not forked; Cubitus anterior bifurcate. Hindwings ( Fig.4 ) deeply incised on apical margin into two lobes, anal lobe absent, veins simple, reticulate apically. Pro- and mesofemora compressed. Hind tibiae with two teeth near apex. Spinal formula of hind leg 8-13-2.

Male genitalia: Anal segment in dorsal view subquadrate, with three lobes in apical margin, each with an angular convexity in lateral margin near base; anal foramen near middle ( Fig.6 ). Genital styles in lateral view oval, with process like a hook in middle of dorsal margin ( Fig.9 ). Aedeagus shallowly U-shaped in lateral view, with lateral, ventral and dorsal lobes; dorsal margin of aedeagus with a fan-like process near base; aedeagus with a pair of ventral hooks blade-like apically, directed cephalad ( Figs.7, 8 ).

Material examined

Holotype: ♂, China: Guizhou Province, Weining, 21 Aug. 1986, Li Zi-Zhong . Paratypes: 2 ♂♂, 4♀♀, same data as for holotype .

Remarks

This new species is similar to N. postfasciatum Fennah , but differs from the latter in: (1) the frons with submedian carina attaining lateral margins ( Fig.2 ); (2) in dorsal view, the lobes of anal segment with lateroapical margin sharp ( Figs.5, 6 ); (3) ventral processes of aedeagus narrowing and tapering suddenly near apex ( Figs.7, 8 ); (4) spinal formula of hind leg 8-13-2.

Etymology The specific name refers to the type locality, Weining, Guizhou Province.

Distribution Southwest China (Guizhou).

Figures

FIGURES 1–9. Neodurium weiningensis Zhang & Chen, sp. nov. 1. Head and thorax, dorsal view; 2. Frons; 3. Tegmen; 4. Hindwing; 5. Male genitalia, lateral view; 6. Anal segment, dorsal view; 7. Aedeagus, lateral view; 8. Aedeagus, ventral view; 9. Genital style, lateral view. Scale bars = 0.5 mm (Figs. 6, 7, 8, 9), 1.0 mm (Figs. 1, 2, 3, 4, 5)