Agnesiella (D.) apiculata Huang & Zhang, 2022

Wang, Junjie, Zhang, Yalin & Huang, Min, 2022, Taxonomic study of the leafhopper genus Agnesiella Dworakowska (Hemiptera Cicadellidae: Typhlocybinae) from China, with descriptions of 13 new species, Zootaxa 5094 (2), pp. 201-233 : 225-228

Agnesiella (D.) apiculata Huang & Zhang sp. nov.

( Figs 36, 40, 44, 48 , 150–156 )

Measurement. Male, 3.25 mm (including wings).

Body ivory ( Figs 36, 40 ). Most parts of face ivory with 2 brown patches on sides of front, transverse brownish streaks on frontoclypeal area and black-brown inner parts of gena ( Fig. 48 ). Pronotum with 5 patches black-brown and central area near posterior margin suffused with brownish. Scutellum with triangles dark brown, 2 small ochre patches on central area, both sides testaceous and remaining parts suffused with brownish ( Fig. 44 ). Forewing with basal half covered with smoky infuscate patches; brochosome field brownish ( Figs 36, 40 , 150 ).

Abdominal apodemes reaching end of 5th abdominal sternite. Male pygofer side with 2 bands of long fine setae, one near posterior margin and the other near ventral margin basally; posteroventral margin slightly protruding with a long digitiform appendage terminally curved downwards ( Fig. 151 ). Subgenital plate slender with bend short ( Figs 152, 153 ). Paramere slender with a small subapical protrusion ( Figs 152, 154 ). Connective with stem nearly as long as lateral arms and central lobe distinct ( Fig. 152 ). Aedeagus with end of dorsoatrium extended; aedeagal shaft straight, lamellar ventral appendage developed with apical half digitiform and directed basad ( Figs 155, 156 ).

Specimens examined. Holotype: ♂, CHINA, Yunnan Province, Mt. Zixi , 2400m, Alnus nepalensis , 10-XI- 1999, coll. I. Dworakowska. Paratype: 2♂ 1♀, same data as holotype ; 1♂, CHINA, Yunnan Province, Tengchong , volcano, 2000m, Alnus nepalensis , 23-XI-1999, coll. I. Dworakowska ; 1♂, CHINA, Yunnan Province, Tengchong , 1650m, 26-IV-1981, coll. Fasheng Li.

Etymology. The specific name is derived from Latin word “apiculatus which means “thin and sharp, referring to the shape of the caudal apex of the paramere ( Fig. 154 ).

Notes. The new species resembles Agnesiella (Draberiella) sinuata , but differs in the male connective having the central lobe distinct ( Fig. 152 ), and in the aedeagal shaft without an irregularly undulate ventral margin subapically ( Fig. 155 ).

Figures

FIGURES 33–48. Habitus (dorsal view and lateral view), crown, pronotum and scutellum (dorsal view), and face. 33, 37, 41, 45, A. (D.) glabra Huang & Zhang sp. nov.; 34, 38, 42, 46, A. (D.) exigua Huang & Zhang sp. nov.; 35, 39, 43, 47, A. (D.) mitrata Huang & Zhang sp. nov.; 36, 40, 44, 48, A. (D.) apiculata Huang & Zhang sp. nov. Scale bars = 1 mm (33–40); Scale bars = 0.2 mm (41–48).

FIGURES 150–156. A. (D.) apiculata Huang & Zhang sp. nov. 150. forewing; 151. male pygofer side, lateral view; 152. paramere, connective, subgenital plate and sternite IX, dorsal view; 153. end of subgenital plate, dorsal view; 154. paramere, ventral view; 155. aedeagus, lateral view; 156. aedeagus, posterior view.