Cladolidia huagaoxiensis Yang & Zhang, 2025

Yang, Li, Jin, Mengyuan, Cao, Yanghui & Zhang, Yalin, 2025, Two new species of tribe Coelidiini (Hemiptera: Cicadellidae: Coelidiinae) from the Oriental Reigon, Zootaxa 5665 (1), pp. 130-136 : 131-134

Cladolidia huagaoxiensis Yang & Zhang sp. nov.

( Figs 1–4 , 9–15 )

Description. Body yellow-brown, forewings yellow-brown with light brown discontinuous spots along black veins, central area with inconspicuous light yellow spots ( Fig. 1 ). Crown dirty yellow, base of coronal suture dark brown, ocelli dark brown, eyes with gray-brown outer margin and reddish-brown inner margin ( Fig. 2 ); frontoclypeus light brown with two broad brown longitudinal stripes on both sides, clypeus brown ( Fig. 3 ); pronotum black covered with dense yellowish-brown granules; mesonotum + scutellum yellow-brown with a dark brown central area and scattered small yellow spots ( Fig. 2 ).

Head with crown anterior margin obtusely rounded, extended beyond anterior margin of eyes for about 1/4 total length of crown, with fine wrinkles on surface and obvious coronal suture extended to level of ocelli ( Fig. 1 ); mesoscutellum large, scutoscutellar sulcus nearly straight ( Fig. 2 ); frontoclypeus with a transverse impression on both sides ( Fig. 3 ).

Male genitalia: Pygofer large and broad, with a nearly straight apical margin, caudodorsal margin folded inward with small, broad lobe and sparse and slender setae, without caudoventral processes; 10th segment long and narrow, without protrusions ( Fig. 9 ); aedeagus long, asymmetrical, flattened, flattest at apex ( Fig. 14 ), with small teeth on dorsal surface ( Fig. 13 ), with a single elongated hook-like process medially in ventral aspect and an asymmetrical oval process with one side smooth and the other side with two spines of different lengths ( Fig 14, 15 ); gonopore small, located at about distal 1/3 of shaft and exiting laterally ( Fig. 13 ); style robust, with wrinkles in ventral aspect, obviously bifurcate apically, arms of bifurcation of unequal length ( Fig. 11 ); connective Y-shaped with arms longer than stem ( Fig. 10 ); dorsal connective stick-like ( Fig 13, 15 ); subgential plate narrow and elongated, with a straight inner margin and a wavy outer margin, slightly expanded medially, with a rounded margin apically, apex with several fine setae ( Fig. 12 ).

Measurements. Male body length 9.05 mm; crown length×width 0.65× 2.45 mm; eye width 0.81 mm; frontoclypeus length 1.67 mm; clypellus length 0.97 mm; pronotum length×width 1.07× 3.02 mm; mesonotum + scutellum length 1.69 mm.

Material examined. Holotype: ♂, Huagaoxi Nature Reserve, Luzhou City , Sichuan Province, 5 Jul. 2023, 28°16'25.5972"N, 105°32'27.798"E, 1787 m, coll. Danyang Xu.

Etymology. The species name is derived for the type locality, Huagaoxi Nature Reserve in Luzhou City, Sichuan Province.

Remarks. The new species runs to C. bifurcata in Nielson’s (2015) key to species of the genus but may be distinguished from this and other species in this genus by 1) having the distal branches of the style uneven in length; 2) having two protrusions on the middle part of the aedeagal shaft, one elongated hook-like and the other asymmetrical oval, and 3) having one side of the protrusion smooth and the other side having two spines of different lengths.

Figures

FIGURES 1–8. 1–4. Cladolidia huagaoxiensis sp. nov. 1. habitus, dorsal view; 2. head and thorax, dorsal view; 3. face; 4. habitus, lateral view; 5–8. Creberulidia gentingensis sp. nov. 5. habitus, dorsal view; 6. head and thorax, dorsal view; 7. face; 8. habitus, lateral view. Scale bars = 0.1 mm (5–6), 0.5 mm (3, 7), 1 mm (1–2, 4, 8).

FIGURES 9–15. Cladolidia huagaoxiensis sp. nov. 9. pygofer and segment X, lateral view; 10. connective, caudal view; 11. style, lateral view; 12. subgenital plate, ventral view; 13. aedeagus and dorsal connective, left lateral view; 14. aedeagus, ventral view; 15. aedeagus and dorsal connective, right lateral view. Scale bars = 0.2 mm (10, 11), 0.5 mm (9, 12–15). Gonopore is located within the square.