Malaxella tetracantha Qin & Zhang

Ren, Fengjuan, Huang, Yixin, Zheng, Lifang & Qin, Daozheng, 2015, Review of the genus Malaxella (Hemiptera: Fulgoroidea: Delphacidae) endemic in China, with a description of a new species, Florida Entomologist 98 (1), pp. 104-104 : 104-

Malaxella tetracantha Qin & Zhang ( Figs. 19-27 , 32, 33 , 38, 39 , 42 )

Malaxella tetracantha Qin & Zhang, 2009: 48 .

DESCRIPTION

Body Length (macropterous) male 1.99-2.25 mm (n = 7); female 2.15-2.62 mm (n = 8); total length (from apex of vertex to the tip of forewing): male 3.93-4.26 mm (n = 7), female 3.90-4.45 mm (n = 8); forewing length male 3.47-3.65 mm (n = 7), female 3.43-3.95 mm (n = 8).

Color. General color yellow to orange. Eyes greyish black, in some specimens eyes with tinge of red ( Figs. 32, 33 , 38, 39 ). Ocelli red brown ( Fig. 39 ). Antennae orange ( Figs. 32 , 38, 39 ). Male pygofer with medioventral processes, apex of parameres, and lef laterodistal process of male anal segment blackish brown. Female ovipositor yellow to brownish orange. Abdomen reddish, in some specimens the dorsum of abdomen yellowish brown except laterally orange.

Head and Thorax. Structures as in generic descriptions. Head including eyes narrower than pronotum (about 0.77:1) ( Figs. 32 , 38 ). Vertex wider at base than long submedially (about 1.18:1), slightly narrower at apex than at base (about 0.88:1) ( Figs. 32 , 38 ). Frons longer in midline than maximum width (about 2.56:1) ( Fig. 39 ). Post- and anteclypeus together approximately 0.79× the length of the frons ( Fig. 39 ). Antennae surpassing apex of clypeus, scape longer than apical width (about 2.39:1), shorter than pedicle (about 0.33:1) ( Fig. 39 ). Pronotum in midline slightly shorter than length of vertex (about 0.95:1), pronotum width 0.77-0.88 mm, length 0.16-0.20 mm ( Figs. 32 , 38 ). Mesonotum medially ca. 1.67 times longer than vertex and pronotum together ( Figs. 32 , 38 ). Tegmina surpassing tip of abdomen by 2/5 of their total length ( Figs. 32, 33 ), widest in apical 1/4 ( Fig. 27 ). Legs with metatibiae 0.90-1.02 mm long, metabasitarsus 0.33-0.36 mm long, tarsomere II 0.17-0.19 mm and III 0.21-0.23 mm, post-tibial spur (0.25- 0.27 mm) about 0.76x as long as metabasitarsus ( Fig. 42 ).

Male Genitalia. Male pygofer in posterior view with opening asymmetrical, bearing 4 spine-like processes along the mid to ventral margins ( Figs. 19-21 ). Parameres broad, in caudal view apices reaching or not attaining the level of anal segment, contiguous at bases and de- tached distad ( Figs. 19, 26 ), both S-shape in lateral view ( Figs. 22, 25 ). Aedeagus produced ventrally near the base, nearly straight in middle portion, apically curved and strongly narrowed ( Fig. 22 ), in caudal view the aedeagus strongly curved to right basally and then to lef distally, clef submedially to rounded apex on dorsal side ( Figs. 19, 23, 24 ). Male anal segment with lef laterodistal process relatively short ( Figs. 19, 20, 22, 24 ).

MATERIAL EXAMINED

CHINA: 1 male ( HOLOTYPE), Fujian, Wuping County, 1 Sept. 2008, 320 m, coll. Lei Zhang ; 4 males 6 females (PARATYPES), Fujian, Wuping County, 1 Sept. 2008, 320 m, coll. Lei Zhang ; 1 female (PARATYPE), Fujian, Wuping County, 1 Sept. 2008, 320 m, coll. Bin Xiao ; 1 male (Paratype), Hainan, Bawangling , 15 May 2008, 126 m, coll. Qiulei Men , light trap; 1 female (Paratype), Hainan, Bawangling , 17 May 2008, 176 m, coll. Qiulei Men , light trap; 1 male (Paratype), Hainan, Liangyuan , 31 May 1983, 173 m, coll. Yalin Zhang , light trap.

DISTRIBUTION

China (Fujian, Hainan) .

Figures

Figs. 19-27. Malaxella tetracantha Qin & Zhang. 19. Male genitalia, caudal view; 20. Male genitalia, lef lateral view; 21. Pygofer, caudal view; 22. Anal segment, aedeagus-suspensorium complex,connective and parameres,lef lateral view; 23. Aedeagus-suspensorium complex,caudal view; 24. Anal segment and aedeagussuspensorium complex, caudal view;25. Parameres,lef lateral view; 26. Parameres, posterior view; 27. Forewing. Scale bars = 0.20 mm (Figs. 19-22,24); 0.10 mm (Figs. 23, 25, 26); 0.50 mm (Fig. 27).`

Figs. 28-33. 28, 29. Malaxella flava Ding & Hu. Female; 30, 31: Malaxella macracantha Ren & Qin sp. nov. Male; 32, 33: Malaxella tetracantha Qin & Zhang. Female. 28, 30, 32. Habitus, dorsal view; 29, 31, 33. Habitus, lef lateral view. Scale bars = 0.50 mm.

Figs. 34-39. 34, 35. Malaxella flava Ding & Hu. Female; 36, 37: Malaxella macracantha Ren & Qin sp. nov. Male; 38, 39: Malaxella tetracantha Qin & Zhang. Female. 34, 36, 38. Head and thorax, dorsal view; 35, 37, 39. Frons and clypeus. Scale bars = 0.20 mm.

Figs.40-42. 40. Malaxella flava Ding & Hu; 41. Malaxella macracantha Ren & Qin sp. nov.; 42. Malaxella tetracantha Qin & Zhang. Hind leg.Scale bars = 0.20 mm.