Mileewa furcata, Yu & He & Yang, 2021

Yu, Xiao-Fei, He, Hong-Li & Yang, Mao-Fa, 2021, Three new species of Mileewa (Hemiptera: Cicadellidae: Mileewinae) from Tibet China, Zootaxa 4933 (3), pp. 435-443 : 438-440

Mileewa furcata sp. nov.

( Figs 3–4 )

Length: ³3.8 mm, ♀ 3.9 mm.

Coloration. Head and thorax black in dorsal view, eyes black. Face and forewing black. Thorax, legs and abdomen ventrally off-white. Subgenital plates and pygofer black.

External features. Crown with anterior margin broadly rounded in dorsal view, median length about equal to interocular width; ocelli located on line between anterior eye angles; lateral frontal suture extending onto crown and attaining ocelli; coronal suture almost reaching 1/2 median length of crown. Face with frontoclypeus weakly convex, muscle impressions distinct; anteclypeus longitudinally convex, flat apically, clypeal suture obscure.

Male genitalia. Male pygofer nearly triangular in lateral view, ventral margin bearing few microsetae; ventral process well developed, with elongate supbapical spine directed dorsad. Anal tube appendage absent. Subgenital plates narrow, extended to posterior margin of pygofer, surface with uniseriate macrosetae on inner margin, some long microsetae dispersed on distal one-fourth. Connective longer than wide with stem long, lateral arms short and median anterior lobe quadrate. Style slender, with microsetae near middle and small lateral tooth near distal onethird. Aedeagus with preatrium quarter length of shaft, dorsal apodeme short, apex thin with expanded subapical in-curled lateral margins and a pair of branched apical processes; gonopore apical between bases of processes.

Etymology. The species name, a Latin adjective, refers to the branched or furcate aedeagal processes.

Material examined. Holotype: ³, China: Tibet, Motuo , 1 August 2020, coll. Xiaofei Yu & Zaihua Yang. Paratypes: 1♀, the same data as holotype ( GUGC).

Remarks. This new species is similar to Mileewa yigongana Yang, 2005 in external morphological characteristics, but can be readily distinguished from the later by the black scutellum apex (scutellum apex yellow-white in M. yigongana ), black face with only anteclypeus apex off-white (frontoclypeus yellow-white except base black in M. yigongana ), and the shape of the male ventral pygofer process, subgenital plates and aedeagus.

Figures

FIGURE 3. Mileewa furcata sp. nov. A. Male adult, dorsal view; B. Male adult, lateral view; C. Face; D. Male genitalia, lateral view; E. Pygofer, lateral view; F. Subgenital plate, ventral view; G. Anal tube, ventral view; H. Aedeagus, style and connective, lateral view; I. Aedeagus, style and connective, ventral view.

FIGURE 4. Mileewa furcata sp. nov. A. Male genitalia, lateral view; B. Pygofer, lateral view; C. Subgenital plate, ventral view; D. Aedeagus, style and connective, ventral view; E. Aedeagus, style and connective, lateral view. F. Anal tube, ventral view.