Neobelocera medogensis, Hu, Chun-Lin & Ding, Jin-Hua, 2014

Hu, Chun-Lin & Ding, Jin-Hua, 2014, A new species of Neobelocera Ding & Yang (Hemiptera: Delphacidae: Delphacinae: Tropidocephalini) from China, with a key to species of the genus, Zootaxa 3784 (2), pp. 196-199 : 197

Neobelocera medogensis sp. nov.

( Figs 1–13 )

Body length. Male (macropterous, n=5) 2.43–2.46 mm, female (macropterous, n=5) 2.46–2.55 mm; total (including tegmen): male (macropterous) 3.87–4.04mm, female (macropterous) 4.22–4.49 mm; tegmen length: male (macropterous) 3.29–3.37mm, female (macropterous) 3.61–3.63mm.

Coloration. Head and thorax including legs mostly yellowish brown. Antennae with first segment at apex and second with two oblique stripes near base and apex, blackish brown to black, the remaining light brown. Tegmen yellowish white, hyaline, veins dark brown, with a small marking on furcation of Sc1. Abdomen including male genitalia mostly dark brown to back, anal segment yellowish brown, with anal style blackish brown.

Head and thorax. Head including eyes slightly wider than pronotum, in profile obtusely rounding into frons ( Fig. 2 ); vertex at apex narrower than at base, lateral margin convergent distad at basal 2/3, Y-shaped carina distinct, mediolateral carinae arising from lateral margins at basal 2/3 and uniting at apex margin, which is concave at both sides between carinae. Frons in middle line longer than broad at widest part about 1.72:1, widest just above level of ocelli, base slightly wider than apex, median carina forked at base. Clypeus at base very slightly wider than frons at apex; postclypeus in lateral view, apical part of median carina bend at rounded; rostrum reaching to meta-coxae. Antennae almost reaching to middle of postclypeus, first segment length in middle line longer than wide at apex about 0.8:1, shorter than second about 0.3:1, subsagittate and flattened, with medio-longitudinal carina and apicolateral angles, the latter inner apical angle longer than the outer, second segment cylindrical ( Fig. 3 ).

Pronotum in middle line longer than vertex wide at base about 0.6:1, with lateral carina incurved mesad at apex and reaching the hind margin. Mesonotum length nearly twice as long as vertex and pronotum together, median carina attaining the end of scutellum. Spinal formula of hind leg 5–6–4, post-tibial spur cultrate, solid, with inner side surface concave, with an apical tooth, no teeth along hind margin.

Male genitalia. Pygofer in posterior view with ventral margin strongly convex medially, terminating with 2 medioventral processes, the right one distinctly longer than left one, the latter is short and stout, in addition, between them one long hair-like process occurring from inside at base ( Fig. 7 ), lateral margins more or less reflected mesad, covering the opening ( Fig. 13 ), in left side view distinctly wider ventrally than dorsally, posterior margin strongly produced in quadrate process near base, which is armed with a triangular process on dorsal margin ( Fig. 11 ). Anal style of male rather long, anal segment ring like, strong produced caudoventrally into a long process which surpasses the middle of genital styles ( Fig. 11 ), apical spine sclerotized and pigmented, with another shorter process arising from apical 1/3 on right side. Genital styles distinctly asymmetrical, right style in posterior view rounded at apex, with a small subapical spine curving posteroventral then turned lateral; left style in caudolateral view with outer margin of apical 1/3 abruptly concave and narrowing to apex ( Fig. 4 ); genital styles in caudal view contiguous at basal half, inner margin evenly concave at apical half, converging apically and meeting each other on apex ( Fig. 13 ). Aedeagus with phallus tubular, long, rounded at apex, phallobase rink-like, with phallobasal processes arising from apex, at left side, nearly as long as phallus, with a triangular process on inner margin near middle, between processes and phallus at base with a short triangular process ( Figs 5–6 ).

Female genitalia. Female ovipositor and first valvifers are shown in figure 12.

Type material. Holotype: male, CHINA: Tibet, Medog (29.324°N, 95.334°E; 1080 m), 29 July 2012, collected by C.-L. Hu. Paratypes: 3 males, 10 females, same data as holotype; 12 males, 1 female, CHINA: Tibet, M?dog (29.325°N, 95.336°E; 1030 m), 29 July 2012, collected by C.-H. Sun.

Host plant. Unknown.

Distribution. China (Tibet).

Remarks. This new species is distinguished from all others species of Neobelocera , by the pale yellowish white forewing, with a dark quadrate-shaped marking on furcation of Sc1, and by the shape of the male genitalia.

Etymology. The new species is named after its type locality, M?dog, Tibet, China.

Figures

FIGURES 1 – 13. Neobelocera medogensis sp. nov. 1. Head and thorax, dorsal view. 2. Same, lateral view. 3. Same, ventral view. 4. Genital styles, posterior and lateral view. 5. Aedeagus, ventrolateral view. 6. Anal segment (left side) and aedeagus (dorsolateral view). 7. Medioventral process. 8. Anal segment, aedeagus and genital styles. 9. Left genital style, lateral view. 10. Tegmen. 11. Male genitalia, left side. 12. Female genitalia, ventral view. 13. Male genitalia, caudal view.