Agnesiella Dworakowska, 1970

Wang, Junjie, Ma, Wenya, Zhang, Yalin & Huang, Min, 2025, One new species and three new records of the leafhopper genus Agnesiella Dworakowska (Hemiptera, Cicadellidae, Typhlocybinae) from China, ZooKeys 1238, pp. 149-159 : 149-159

Agnesiella Dworakowska, 1970

Agnesiella Dworakowska, 1970: 211.

Type species.

Typhlocyba aino Matsumura, 1932 .

Diagnosis.

Body with ground color ivory to brownish. Vertex-face junction usually with 2 sesame-like whitish patches; vertex usually with a pair of roundish black patches near the inner margins of the eyes. Pronotum usually with an oval dark longitudinal patch near center of anterior margin, and 1 or 2 pairs of dark lateral patches. Forewing basal 2 / 3 generally with brownish patches, patches at distal end of ScP + RA and MP’ ’ + CuA’ veins, and 3 rd apical cell usually brownish; brochosome area semi-transparent to reddish-brown with patches at both ends brownish to black.

Crown obtusely protruding medially, narrower than pronotum with length about 1 / 2 that of pronotum, and with anterior and posterior margins approximately parallel. Pronotum with anterior margin arched and posterior margin straight. Apical half of forewing narrowing gradually, with RP and MP’ veins confluent at the base and 3 rd apical cell subtriangular. Hind wing transparent with R and MP veins confluent terminally.

Abdominal 2 S apodemes developed and usually extending to 5 th or 6 th abdominal sternite. Male pygofer generally with 2 setal groups; posterior margin generally with digitiform process extending either dorsally or posteriorly, and a small protrusion bearing small rigid setae on upper part. Length of genital valve approximately 1 / 5 to 1 / 4 length of subgenital plate. Subgenital plate club-shaped, usually with slightly expanded distal end, outer margin usually narrowed subapically with a protrusion generally bearing few peg-like setae; apical half usually with small rigid setae and long, fine setae. Paramere usually with subapical processes varying in length, number and angle; caudal half with row of microsetae on outer side and row of sensilla pores on inner side. Connective Y-shaped with stem well developed. Aedeagal shaft slender, usually with lamellar or digitiform ventral processes and tooth-like end curling inwards; gonopore apical.

Remarks.

This genus shares similarities with Linnavuoriana Dlabola, 1958 in the presence of paired spots on the head and pronotum, and the absence of macrosetae on the subgenital plate. However, it is distinguished by a pair of black submarginal spots on the vertex, a process on the posterior margin of the male pygofer, and a process on the ventral margin of the aedeagal shaft.

Distribution.

Oriental and Palaearctic regions.

Key to males of Agnesiella from China

Figures

Figures 21–26. A. (D.) geminicruciata Wang & Huang, sp. nov. 21 abdominal apodemes 22 genitalia capsule, lateral view 23 paramere, connective and subgenital plate, dorsal view 24 apical 1 / 3 of subgenital plate, lateral view 25 aedeagus, lateral view 26 aedeagus, posterior view.