Eurhadina ( Singhardina ) immatura Zhang et Huang, 2021

Eurhadina ( Singhardina) immatura Zhang et Huang View in CoL sp. nov.

( Figs 78–90 View FIGURES 78–90 )

Body yellowish. Head sordid white ( Figs 78, 81 View FIGURES 78–90 ). Pronotum and scutellum without any patches ( Figs 78, 80 View FIGURES 78–90 ). 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 View FIGURES 78–90 ).

Male genitalia: Upper lobe of pygofer side strongly pigmented and serrated distally ( Figs 82, 83 View FIGURES 78–90 ). 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 View FIGURES 78–90 ). Connective broad with lateral arms strongly divergent ( Fig. 86 View FIGURES 78–90 ). Paramere with several small sharp tubercles and four sensory pores on caudal part ( Fig. 87 View FIGURES 78–90 ). Aedeagus with developed dorsoatrium; aedeagal shaft slim and straight with one pair of long dorsal appendages ( Figs 88–90 View FIGURES 78–90 ).

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 View FIGURES 78–90 ).