Changwhania Kwon

Zhang, Yalin & Duan, Yani, 2009, A taxonomic review of the Old World leafhopper genus Changwhania Kwon (Hemiptera: Cicadellidae: Deltocephalinae: Paralimnini), Zootaxa 2089, pp. 19-32 : 19-20

Changwhania Kwon

Changwhania Kwon, 1980: 96 –97; Webb & Heller, 1990: 452. Type species: Aconura terauchii Matsumura, 1915 .

Yellow to sordid yellow. Head with spot or line adjacent to eye on vertex and another spot below each antenna on face.

Head wider than pronotum, vertex in mid-line about as long as or slightly longer than width between eyes and as long as or slightly shorter than pronotum, flat or slightly convex, transition to face somewhat acutely rounded in profile. Distance between ocelli and eyes approximately equal to diameter of ocellus. Frontoclypeus distinctly longer than wide. Anteclypeus slightly narrowed distally, with rounded lower margin. Rostrum shorter than anteclypeus, reaching end of fore coxae. Pronotum about twice as wide as long, its lateral side very short. Tegmina elongate, macropterous, with two anteapical cells, inner anteapical cell closed basally. Hind wings with three apical cells. Profemur with approximately 8 setae in row AV, with more anterior seta thicker; protibia dorsal setal formula: 1+4; hind femur apical setal formula: 2+2+1.

Male genitalia. Pygofer elongate, oblique anteriorly, exceeding subgenital plates, bearing numerous long macrosetae scattered over posterior half, and armed with pair of long spine-like sharp processes on inner sides of ventral margins, directed caudad. Anal tube with well developed pair of appendages on anterior ventral side, their apical margins serrate. Subgenital plate triangular with rounded to truncate apex and undulated lateral margin; with uniseriate row of macrosetae laterally. Aedeagus sharply curved at base; basal apodeme narrow; shaft very elongate, slightly twisted at midlength, asymmetrical; with pair of apical or subapical processes; gonopore subapical on ventral surface. Connective with arms convergent apically, stem very short.

Female seventh sternum more or less produced mesally on posterior margin. First valvula ramus not strongly curved, dorsal sculpturing maculose to granulose and reaching dorsal margin. Second valvula with very small obliquely triangular dorsal teeth on apical 1/2.

Distribution. Palaearctic region, Asia and Austro-Oriental region.

Remarks. This genus belongs in Paralimnini based on the arms of the connective converging apically (see Fig. 2 E). The most reliable features for identifying species in this genus are the shape of the style apical process and the shape and position of the aedeagal processes. Although there is a slight difference between the two widespread species ( terauchii and ceylonensis ) in the shape of the head spots this may not always be reliable (see key and Remarks under these species).

Figures

FIGURE 2. Changwhania terauchii (Matsumura) (Sri Lanka). A: male genital segment, lateral view; B: pygofer process, ventral view; C: subgenital plate, ventral view; D: style, dorsal view; E: connective, dorsal view; F, G: aedeagus, lateral view.