Agnesiella (D.) eleganta 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 : 219-222

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

( Figs 20, 24, 28, 32 , 122–129 )

Measurement. Male, 3.25 mm (including wings).

Body yellowish ( Figs 20, 24 ). Face with testaceous transverse streaks on yellow frontoclypeal area, lorum and outer half of gena yellow, inner parts of gena and end of anteclypeus black-brown ( Fig. 32 ). Vertex yellow ochre near coronal suture. Pronotum with a central oval patch and 2 pairs of lateral patches black-brown, between central and lateral patches with 2 arched brown bands connecting with lateral lower patches, central part suffused with brownish. Scutellum brownish, triangles dark brown ( Fig. 28 ). Forewing with patches roughly divided into three areas on basal half, one brownish patch at base, one banded yellow ochre patch at central part of basal half and another brownish patch near cross vein; a yellow ochre area surrounded by basal patch of brochosome field, ScP+RA and R vein; brochosome field yellow ochre ( Figs 20, 24 , 122 ).

Abdominal apodemes reaching base of 6th abdominal sternite. Male pygofer side with long fine setae band closer to posteroventral margin than rigid microsetae band; posteroventral margin protruding with a digitiform appendage extended dorsad ( Fig. 124 ). Subgenital plate with some long fine setae terminally on outer side, and a small subapical protrusion bearing 3 peg-like setae apically ( Fig. 126 ). Paramere slightly thickened subapically with a heel-like subapical protrusion ( Fig. 127 ). Connective with stem nearly as long as lateral arms and central lobe absent ( Fig. 125 ). Aedeagal shaft with apex slightly protruded backwards, lamellar ventral appendage subtriangular with lower margin denticulate ( Figs 128, 129 ).

Specimens examined. Holotype: ♂, CHINA, Sichuan Province, Moxi , 1600m, Alnus nepalensis , 5-XI-1999, coll. I. Dworakowska. Paratype: 9♂ 11♀, same data as holotype ; 3♂ 2♀, CHINA, Sichuan Province, Mianning , 1650m, Alnus nepalensis , 8-XI-1999, coll. I. Dworakowska ; 2♂, CHINA, Sichuan Province, Moxi , 1650m, Alnus nepalensis , 4-XI-1999, coll. I. Dworakowska ; 1♂, CHINA, Sichuan Province, Mt. Emei , 750m, 3-V-1957, coll. Youcai Lu ; 1♀, CHINA, Sichuan Province, Mt. Emei , 750m, 7-V-1957, coll. Youcai Lu ; 1♀, CHINA, Yunnan Province, Jinping , 1700m, 4-V-1956, coll. Keren Huang.

Etymology. The specific name is derived from Latin word “elegans, referring to the slender foot-shaped end of the paramere ( Fig. 127 ).

Notes. The new species resembles Agnesiella (Draberiella) erosa , but differs in the male pygofer side with a band of long fine setae near the posterior margin, without a small protrusion bearing rigid microsetae on the upper part of the posterior margin ( Fig. 124 ), and in the aedeagal shaft without an arched lamellar dorsal extension subapically and with the non-digitiform ventral appendage ( Fig. 128 ).

Figures

FIGURES 17–32. Habitus (dorsal view and lateral view), crown, pronotum and scutellum (dorsal view), and face. 17, 21, 25, 29, A. (D.) irma Dworakowska, 1977 rec. nov.; 18, 22, 26, 30, A. (D.) gaura Huang & Zhang, 2016 sp. nov.; 19, 23, 27, 31, A. (D.) longisagittata Huang & Zhang sp. nov.; 20, 24, 28, 32, A. (D.) eleganta Huang & Zhang sp. nov. Scale bars = 1 mm (17–24); Scale bars = 0.2 mm (25–32).

FIGURES 122–129. A. (D.) eleganta Huang & Zhang sp. nov. 122. forewing; 123. abdominal apodemes; 124. male pygofer side, lateral view; 125. paramere, connective, subgenital plate and sternite IX, ventral view; 126. end of subgenital plate, dorsal view; 127. caudal end of paramere, dorsal view; 128. aedeagus, lateral view; 129. aedeagus, posterior view.