Eurhadina (Singhardina) immatura 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 : 519

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

( Figs 78–90 )

Body yellowish. Head sordid white ( Figs 78, 81 ). Pronotum and scutellum without any patches ( Figs 78, 80 ). Forewing yellowish, distal margin of brochosome area and ScP+RA vein with one oblique strip; RP vein with a brownish spot on apical 1/3; CuA″ vein with a brownish semi-circle patch; 4th apical cell with a light brownish patch ( Figs 78, 79 ).

Male genitalia: Upper lobe of pygofer side strongly pigmented and serrated distally ( Figs 82, 83 ). Subgenital plate with one long macroseta near basal 1/3; six short microsetae longitudinally near apical 1/3 and two rigid microsetae on apex ( Figs 84, 85 ). Connective broad with lateral arms strongly divergent ( Fig. 86 ). Paramere with several small sharp tubercles and four sensory pores on caudal part ( Fig. 87 ). Aedeagus with developed dorsoatrium; aedeagal shaft slim and straight with one pair of long dorsal appendages ( Figs 88–90 ).

Specimens examined. Holotype: ♂, China, Yunnan Prov., Sanchahe, 7 June 1991, coll. Rungang Tian. Paratypes: 8 ♂, same data as holotype; 1 ♂, China, Yunnan Prov., Mengla, Mt. Nangong , 17 December 1999, coll. Irena Dworakowska.

Measurement. Length of male 3.19–3.42 mm (including wing).

Etymology. The specific epithet is derived from the Latin word “ immatura ” referring to aedeagal shaft without ventral appendage.

Remarks. This new species resembles E. (S.) hema in male genitalia, but differs in having the aedeagal shaft with one pair of dorsal appendages and lacking ventral appendages ( Figs 88–90 ).

Figures

FIGURES 78–90. Eurhadina (Singhardina) immatura sp. nov. 78, habitus, dorsal view. 79, habitus, lateral view. 80, head and thorax, dorsal view. 81, face. 82, male pygofer side, lateral view. 83, hind part of pygofer, lateral view. 84, subgenital plate, connective, paramere and sternite IX, dorsal view. 85, apex of subgenital plate, dorsal view. 86, connective, dorsal view. 87, paramere, dorsal view. 88, aedeagus, posterior view. 89, apex of aedeagal shaft, dorsal view. 90, aedeagus, lateral view.