Malaxella flava Ding & Hu, 1986

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 flava Ding & Hu, 1986 ( Figs. 1-9 , 28, 29 , 34, 35 , 40 )

Malaxella flava Ding & Hu in Ding et al. 1986: 419; Qin & Zhang, 2009: 45.

Malaxa aurunca Yang & Yang, 1986: 59 , synonymized by Chen, 2003: 820.

REDESCRIPTION

Body Length. (Macropterous) male 1.85-2.25 mm (n = 6); female 2.12-2.64 mm (n = 12); total length (from apex of vertex to the tip of forewing): male 3.53-3.75 mm (n = 6), female 3.75-4.15 mm (n = 12); forewing length: male 3.15-3.26 mm (n = 6), female 3.16-3.58 mm (n = 12).

Color. General color yellow to orange. Eyes grayish black, in some specimens eyes with tinge of red ( Figs. 28, 29 , 34, 35 ). Ocelli red brown ( Figs. 29 , 35 ). Antennae orange, apex of scape and base of pedicle reddish orange, in some specimens the antennae reddish orange except the apex of pedicle orange yellow ( Fig. 35 ). Abdomen orange, in some specimens dorsum of abdomen yellowish brown except laterally orange. Male pygofer with medioventral processes, apex of parameres, aedeagus and lef laterodistal processes of male anal segment blackish brown. Female ovipositor yellow to brownish orange.

Head and Thorax. Structures as in generic descriptions.Head including eyes narrower than pronotum (about 0.74:1) ( Figs. 28 , 34 ). Vertex wider at base than long submedially (about 1.16:1), slightly narrower at apex than at base (about 0.87:1) ( Figs. 28 , 34 ). Frons longer in midline than maximum width about 2.49:1 ( Fig. 35 ). Post- and anteclypeus together approximately 0.85 × of the length of the frons ( Fig. 35 ). Antennae reaching apex of clypeus, scape longer than apical width (about 2.33:1), shorter than pedicle (about 0.29:1) ( Fig.35 ). Pronotum slightly shorter than vertex in midline (about 0.91:1),pronotum width 0.73-0.80 mm, length 0.15-0.18 mm ( Figs. 28 , 34 ). Mesonotum medially ca. 1.53 times longer than vertex and pronotum together ( Figs. 28 , 34 ). Tegmina surpassing tip of abdomen by about two fifhs of their total length ( Figs.28, 29 ), widest at apical third ( Fig. 9 ). Legs with metatibiae 0.85-1.03 mm long, metabasitarsus 0.32- 0.35 mm, tarsomere II 0.14-0.17 mm and III 0.19-0.22 mm,post-tibial spur (0.25-0.29 mm) nearly 0.82x as long as metabasitarsus ( Fig. 40 ).

Male Genitalia. Male pygofer in posterior view with opening asymmetrical, bearing 2 spine-like processes on the midventral margin ( Figs. 1, 3 ). Parameres fairly long, in caudal view apices attaining the level of anal segment, the lef paramere acuminate at apex and longer than the right one ( Figs. 1, 4, 7, 8 ). Aedeagus produced ventrally near the base, then curved and gradually narrowing distad ( Fig. 4 ), in caudal aspect the aedeagus slightly curved to the lef, clef subbasally to acuminate apex on dorsal side ( Figs. 1, 5, 6 ). Male anal segment large ( Figs. 1, 2, 4, 6 ).

MATERIAL EXAMINED

CHINA: 4 males 7 females, Guangxi, Guilin , 28 Aug. 1974, coll. Yao Zhou & Zheng Lu ; 1 female, Hainan, Nada , 23-24 Aug. 1974, coll. Yao Zhou & Zheng Lu ; 1 female, Hainan, Jianfengling , 18 May 1983, coll. Yalin Zhang. 2 males, Fujian, Shanghang , Gutian County, 28 Aug. 2008, coll. Manqiang Wang ; 3 females, Fujian, Jiangshi Nature Reserve , 29 July 2009, coll. Chaozhong Jiang.

HOST PLANT

Bambusa multiplex (Lour.) Raeuschel ( Yang & Yang 1986; Chen 2003).

DISTRIBUTION

China (Fujian, Guizhou, Guangdong, Guangxi, Hainan, Taiwan, Yunnan) .

Figures

Figs. 1-9. Malaxella flava Ding & Hu. 1. Male genitalia,caudal view; 2. Male genitalia,lef lateral view; 3. Pygofer, caudal view;4. Anal segment,aedeagus-suspenso- rium complex, connective and parameres, lef lateral view; 5. Aedeagus-suspensorium complex, caudal view; 6. Anal segment and aedeagus-suspensorium complex, caudal view;7. Parameres,lef lateral view; 8. Parameres,posterior view;9. Forewing. Scale bars = 0.20 mm (Figs.1-4, 6); 0.10 mm (Figs.5, 7, 8); 0.5 mm (Fig.9).

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.