Neotetricodes longispinus Chang et Chen

Chang, Zhi-Min, Yang, Lin, Zhang, Zheng-Guang & Chen, Xiang-Sheng, 2015, Review of the genus Neotetricodes Zhang et Chen (Hemiptera: Fulgoromorpha: Issidae) with description of two new species, Zootaxa 4057 (3), pp. 340-352 : 342-344

Neotetricodes longispinus Chang et Chen , sp. nov.

( Figs 1–2 , 14–32 )

Description. Measurements. Body length (from apex of vertex to tip of tegmina): male 6.5–6.7 mm (N=4), female 6.9–7.0 mm (N=2); Tegmen: male 5.5–5.6 mm, female 5.8–5.9 mm.

Coloration. General color ( Figs 1–2 ) brown. Vertex ( Fig. 14 ) brown, eyes reddish brown to dark brown, antenna dark brown. Frons ( Fig. 13 ) brown, with pale verrucae near lateral margins and base. Pronotum ( Fig. 14 ) brown, with numerous pale brown verrucae, mesonotum brown. Tegmina ( Fig. 1 ) dark green to brown, with irregular black spots and green veins. Hind wings translucent, gray. Legs ( Fig. 8 ) brown, tips of spines on hind tibiae and tarsi black.

Head and thorax. Head ( Fig. 14 ) including eyes narrower than pronotum (0.76: 1.00). Vertex ( Fig. 14 ) shorter in midline than wide at base (0.54: 1.00), strongly depressed; disc of vertex without median carina. Frons ( Figs 15–16 ) flat, disc slightly depressed, basal margin arched, apical margin obtusely rounded, lateral margins ridged, incurved below level of sockets of antennae, longer in middle than the maximum width (1.27: 1.00), with median and lateral carinae. Pronotum ( Fig. 14 ) with median carina obscure, lateral carinae not reaching the posterior margin. Mesonotum ( Fig. 14 ) triangular, with median and lateral carinae. Tegmina ( Fig. 17 ) elongate, 2.3 times as long as maximum width, ScP and R forked near 1/3 base, MP four branched, MP1+2 bifurcate, reaching the apical margin, MP3+4 bifurcate at middle part, uniting near apical margin, CuA not forked, simple, CuP present, Pcu and A1 uniting in basal 2/3 of clavus. Hindwings ( Fig. 18 ) deeply incised on apical margin into two big lobes, with a network of veins, anal lobe reduced. Hind tibiae ( Fig. 9 ) each with 4 spines, one of small spines near base, spinal formula of hind leg 8–10–2.

Male genitalia.. Anal tube ( Fig. 21 ) in dorsal view subquadrate, relatively short, with two lobes near apical margin. Anal style ( Figs 19, 21 ) short, located at the base 1/4 of anal tube. Pygofer ( Fig. 19 ) narrow and curved in lateral view, subquadrate, anterior margin concave on dorsal 1/3, posterior margin moderately convex. Genital styles ( Figs 19–20 ) moderately long, dorsal margin producing an obscure triangular lobe before capitulum; capitulum of genital styles narrowing apically on long neck. Phallobase ( Figs 22–23 ) with dorsal lobe cystiform at apical part, with triangular process in apical 1/ 3 in lateral view; ventral lobe relative long, not reaching the tip of dorsal lobe, in ventral view ventral lobe irregular rhombic, the apical half broad, basal half narrowing, with two stout hamulate processes near base ( Figs 22 a, 23a). Aedeagus with long processes at basal 1/ 3 in lateral view, acute apically ( Figs. 22 b, 23b).

Female genitalia. Hind margin of sternum VII concave with widely arcuate median prominence ( Figs 26, 28 ) in ventral view. Anal tube ( Fig. 27 ) sub-rectangular, truncate apically, obviously longer in midline than the widest part (1.67:1.00), the widest in the middle, anal style short, located at the basal 1/4 of anal tube. Hind margin of gonocoxa VIII with endogonocoxal lobe indistinct, endogonocoxal process gradually narrowing ( Fig. 29 ). Anterior connective lamina of gonapophyses VIII ( Fig. 29 ) with 5 teeth bearing 5 keels in lateral group and 3 teeth in apical group. Posterior connective lamina of gonapophyses IX ( Figs 30–31 ) subtriangular, long, lateral field with small teeth in lateral margins; sublateral field with hamulate prominence ( Fig. 30 b) in middle and coralloid processes ( Fig. 30 a) in apical part; median field with a club-shaped prominence (medial dorsal process) ( Fig. 30 ); distal parts bent at obtuse angle in dorsal view (posterior ventral lobes) ( Fig. 30 ). Gonoplacs ( Fig. 32 ) without keels.

Type material. Holotype: ♂, Ailao Mountain National Nature Reserve (24°12´N, 101°19´E), Yuxi, Yunnan Province, China, 21 July 2012, W.-B. Zheng, W.-C. Yang ( IEGU); paratypes: 2♂♂, 2♀♀, same data as holotype ( IEGU); 1♂, 1♀, same data as holotype ( BMNH).

Host plant. Unknown.

Etymology. Specific epithet is derived from the presence of the long processes in aedeagus.

Distribution. China (Yunnan).

Remarks. This species resemble N. quadrilamina , but can be distinguished from the latter in the following characteristics: Anal tube ( Fig. 21 ) sub-quadrate, with two lobes near apical margin; phallobase ( Fig. 22 ) with triangular process in apical 1/ 3 in lateral view; in ventral view ventral lobe irregular rhombic, with two stout hamulate processes near base ( Fig. 23 ). Aedeagus with long processes at basal 1/ 3 in lateral view. ( Figs 22–23 ).

Figures

FIGURES 1 – 13. Neotetricodes species: (Figs 1, 3, 5 – 7) male adult, dorsal view; (Figs 2, 4) same, lateral view; (Figs 8 – 13) hind tibiae. (Figs 1 – 2, 8): N. longispinus Chang et Chen, sp. nov.; (Figs 3 – 4, 9): N. xiphoideus Chang et Chen, sp. nov.; (Figs 5, 10 – 11): N. clavatus Chen, Zhang et Chang, 2014; (Figs 6, 12): N. kuankuoshuiensis Zhang et Chen, 2012; (Figs 7, 13): N. quadrilamina Zhang et Chen, 2012. Scale bars = 0.5 mm.

FIGURES 14 – 23. N. longispinus Chang et Chen, sp. nov.. Male. 14. Head and thorax, dorsal view; 15. Head, ventral view; 16. Head and thorax, lateral view; 17. Tegmen; 18. Hind wing; 19. Male genitalia, lateral view; 20. Genital style, lateral view; 21. Anal segment, dorsal view; 22. Aedeagus and phallobase, lateral view; 23. Aedeagus and phallobase, ventral view. a — hamulate processes, b — long processes. Scale bars = 0.5 mm.

FIGURES 24 – 32. N. longispinus Chang et Chen, sp. nov.. Female genitalia. 24. Female genitalia, dorsal view; 25. Same, lateral view; 26. Same, ventral view; 27. Anal segment, dorsal view; 28. Sternum VII, ventral view; 29. Anterior connective lamina of gonapophyses VIII, lateral view; 30. Posterior connective lamina of gonapophyses IX, dorsal view; 31. Same, lateral view; 32. Gonoplacs, lateral view. lf — lateral field of posterior connective lamina of gonapophyses IX; mdp — medial dorsal process; pvd — posterior ventral lobes; slf — sublateral field of posterior connective lamina of gonapophyses IX; a — coralloid processes, b — hamulate prominence. Scale bars = 0.5 mm.