Malaxella macracantha Ren & Qin, 2015

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 macracantha Ren & Qin sp. nov. ( Figs. 10-18 , 30, 31 , 36, 37 , 41 )

DESCRIPTION

Body Length. (Macropterous) male 2.18-2.62 mm (n = 8); female 2.60 mm (n = 1); total length (from apex of vertex to the tip of forewing): male 4.20-4.25 mm (n = 8), female 4.53 mm (n = 1); forewing length: male 3.56-3.82 mm (n = 8), female 3.98 mm (n = 1).

Color. General color yellow to orange. Eyes reddish brown, in some specimens eyes greyish with tinge of red ( Figs. 30, 31 , 36, 37 ). Ocelli brownish red ( Fig. 37 ). Antennae orange, in some specimens apex of scape and base of pedicle with tinge of red ( Fig. 37 ). Abdomen orange. Male pygofer with ventral processes, parameres and lef laterodistal process of male anal segment blackish brown. Female ovipositor yellowish orange.

Head and Thorax. Head including eyes narrower than pronotum (about 0.75: 1) ( Figs. 30 , 36 ). Vertex wider at base than long submedially (about 1.56:1), narrower at apex than at base (about 0.83:1) ( Figs. 30 , 36 ). Frons in midline longer than maximum width (about 2.52:1) ( Fig. 37 ). Post- and anteclypeus together approximately 0.69 × of the length of frons ( Fig. 37 ). Antennae surpassing apex of clypeus, scape longer than apical width (about 2.41:1), shorter than pedicle (about 0.35:1) ( Fig. 37 ). Pronotum in midline slightly longer than length of vertex (about 1.08:1), pronotum width 0.80-0.88 mm, length 0.17-0.20 mm ( Figs. 30 , 36 ). Mesonotum medially ca. 1.72 times longer than vertex and pronotum together ( Figs. 30 , 36 ). Tegmina surpassing tip of abdomen by nearly half of total length ( Figs. 30, 31 ), widest at apical 1/4 ( Fig. 18 ). Legs with metatibiae 0.98-1.07 mm long, metabasitarsus 0.35-0.38 mm, tarsomere II 0.16-0.17 mm and III 0.22-0.23 mm, post-tibial spur (0.27-0.30 mm) nearly 0.79 x as long as metabasitarsus ( Fig. 41 ).

Male Genitalia. Male pygofer in posterior view with opening symmetrical, bearing 2 fairly long, broad, blade-like processes on the ventral margin ( Figs. 10, 11, 12 ). Parameres slender, in caudal view apices attaining the level of anal segment, the lef paramere longer than the right one, both curved and pointed apically ( Figs. 10, 13, 17 ). Aedeagus in lateral view broad subbasally, apical 2/3 curved and strongly narrowing distad ( Figs. 13, 15 ), in caudal view the aedeagus curved to lef, clef submedially to truncated apex on dorsal side ( Figs. 10, 14 ). Male anal segment with lef laterodistal process moderate ( Figs.10, 11, 13, 15, 16 ).

TYPE MATERIAL

HOLOTYPE male (macropterous) CHINA: Yunnan, Menghai , Daluo County, 22 May 2011, 679 m, coll. Silong Xu ( NWAFU) . PARATYPES 7 males 1 female, same data as holotype ( NWAFU) .

ETYMOLOGY

The specific epithet refers to the large medioventral processes of the pygofer.

REMARKS

This new species differs from both M. flava and M. tetracantha in having 2 fairly long and blade-like medioventral processes (with either 2 or 4 short and spine-like processes in M. flava and M. tetracantha , respectively); in the aedeagus being humped dorsally in basal 2/5 (not humped dorsally in basal 2/ 5 in M. flava and M. tetracantha ); the aedeagus being truncated at apex in caudal view (acuminate or rounded at apex in M. flava and M. tetracantha ).

DISTRIBUTION

Known currently from the type locality in southwest China (Yunnan

Province).

Figures

Figs. 10-18. Malaxella macracantha Ren & Qin sp. nov. 10. Male genitalia, caudal view; 11. Male genitalia, lef lateral view; 12. Pygofer, caudal view; 13. Anal segment, aedeagus-suspensorium complex, connective and parameres, lef lateral view; 14. Aedeagus-suspensorium complex, caudal view; 15. Anal segment and aedeagus-suspensorium complex, lef lateral view; 16. Anal segment,caudal view;17. Parameres,posterior view; 18. Forewing. Scale bars = 0.20 mm (Figs. 10-17); 0.50 mm (Fig. 18).

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.