Eurhadina (Singhardina) fumosa Zhang et Huang, 2021

Zhou, Juan, Zhang, Yalin & Huang, Min, 2021, First records of the Oriental Eurhadina (Singhardina) robusta species group from China with descriptions of five new species (Hemiptera: Cicadellidae: Typhlocybinae), Zootaxa 5061 (3), pp. 510-522 : 513

Eurhadina (Singhardina) fumosa Zhang et Huang sp. nov.

( Figs 52–64 )

Body creamy. Face sordid white ( Fig. 55 ). Crown with two orange patches posteriorly. Pronotum with broad yellowish pale fascia posteriorly and two ochre patches anteriorly; basal triangles ochre; scutellum with two small dark brownish patches laterally and two blackish marks on sides of scutellum ( Figs 52, 54 ). Forewing pale white with brownish patches on basal part of corium and clavus, extending to brochosome area; clavus with a yellow round patch centrally, two blackish patches on both ends of central round patch and one brown spot distally; one brownish oval patch on corium near apical 1/2 of claval furrow; brochosome area with a big brownish patch on costal margin and one oblique ochre strip along distal margin, same patch on ScP+RA; RP with a brown spot on apical 1/2; lateral margin of 4th apical cell and its adjoining partial region covered with irregular brownish patches ( Figs 52, 53 ).

Male genitalia: Upper lobe of pygofer side strongly pigmented and serrated distally ( Figs 56, 57 ). Subgenital plate with one long macroseta near basal 2/5, row of long macrosetae from near apical 1/3 to subapex; three short microsetae near subapex; several short microsetae near apical 1/3 and one rigid microseta on apex ( Figs 58, 59 ). Connective with central ridge long and lateral arms weakly divergent ( Fig. 60 ). Paramere slender with several small sharp tubercles and 2 microsetae on caudal part ( Fig. 61 ). Aedeagal shaft slightly arched in lateral view with two pairs of unbranched and equal wide apical appendages; dorsal appendages below and shorter than ventral ones with semi-lunar depression on apical 1/3; both of them intersected basally in dorsal view ( Figs 62–64 ).

Specimens examined. Holotype: ♂, China, Yunnan Prov., Sanchahe , 7 June 1991, coll. Rungang Tian . Paratypes: 13 ♂, same data as holotype ; 1 ♂, China, Yunnan Prov., Mengyang, 7 June 1991, coll. Guangchun Liu and Wanzhi Cai.

Measurement. Length of male 3.27–3.62 mm (including wing).

Etymology. The specific epithet is derived from the Latin word “ fumosa ” referring to infumated patches on forewing.

Remarks. This new species most resembles E. (S.) krispinilla in male genitalia, but differs by the aedeagal shaft with dorsal appendages longer than ventral appendages ( Figs 62–64 ).

Figures

FIGURES 52–64. Eurhadina (Singhardina) fumosa sp. nov. 52, habitus, dorsal view. 53, habitus, lateral view. 54, head and thorax, dorsal view. 55, face. 56, male pygofer side, lateral view. 57, hind part of pygofer, lateral view. 58, paramere, connective, subgenital plate and sternite IX, dorsal view. 59, apex of subgenital plate, dorsal view. 60, connective, dorsal view. 61, paramere, dorsal view. 62, aedeagus, posterior view. 63, apex of aedeagal shaft, dorsal view. 64, aedeagus, lateral view.