Thagria trifurcata Wang & Li & Dai 2020, sp. nov
| Main Authors: | Wang, Xian-Yi, Li, Zi-Zhong, Dai, Ren-Huai |
|---|---|
| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 2020
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/4398759 |
Daftar Isi:
- Thagria trifurcata sp. nov. (Figs 1 A–B, E–F, I–J, 2 A–M) Description. Measurements. Male. Body length (including tegmina): 7.9 mm. Head width (including eyes): 2.4 mm. Crown length × width: 1.0× 0.70 mm; eyes width: 0.70 mm; clypeus length: 1.35 mm. Pronotum length × width: 0.80 × 2.30 mm. Scutellum length: 1.3 mm. Female. Body length (including tegmina): 7.8 mm. Head width (including eyes): 2.1 mm. Crown length×width: 0.90 × 0.70 mm; eyes width: 0.60 mm; clypeus length: 1.0 mm. Pronotum length × width: 0.80 × 2.1 mm. Scutellum length: 1.3 mm. External morphology. Male and female. General color pale brown to brown speckled with yellow spots (Fig. 1 A–B, E–F). Head ochraceous, with dark brown basal spots. Crown yellow with 2 short black stripes medially, eyes and ocelli dark brown (Fig. 1 A–B, E–F, I–J). Face ochraceous, with black markings (Fig. 1 I–J). Pronotum dark, with numerous yellow spots. Scutellum brown, with yellow plaque (Fig. 1 A–B, E–F). Forewing light brown with numerous darker brown markings arranged symmetrically, apical cells fuscous, venation dark brown with inconspicuous yellow spots; male with one median spot on subapex of clavus, one spot on costal margin about 4/5 from base, ochraceous, apical cells fuscous; female with one spot on apex of clavus, two spots on costal margin about 1/3 and 2/3 distance from base, respectively (Fig. 1 B, F). Medium sized, robust species (Fig. 1 A–B). Head with anterior margin broadly rounded (Fig. 1 A–B). Crown wide and short, roundly produced beyond anterior margin of eyes, interocular width greater than width of eyes (Fig. 1 A–B, E–F). Face with clypellus short, not inflated, similar in shape in male and female, constricted in apical half, apex rounded (Fig. 1 I–J). Male genitalia. Pygofer caudal margin with three acute processes in lateral view; with pair of apically crossing dorsal processes (Fig. 2 A). Segment X process absent. Dorsal connective broadly U-shaped in ventral view (Fig. 2 B). Style slender, nearly reaching apex of aedeagal paraphysis, curved and attenuated apically in dorsal view (Fig. 2 C). Aedeagus symmetrical, relatively long, distal region extending over distal 2/3 of ventral paraphysis in dorsal view; gonopore apical; ventral paraphysis asymmetrical, gradually narrowed from base to apex, apically tapered, subapex curved in dorsal view (Fig. 2 D–E). Connective somewhat H-shaped, stem long and broader than arms, with median cleft (Fig. 2 F). Subgenital plate relatively broad, with numerous slender setae, marginal setae long and fine (Fig. 2 G). Female genitalia. Valvulae III, in lateral view, with expanded distal region extending over distal 2/3, apex rounded, with fine setae on apical and ventral margins (Fig. 2 H–I). Valvulae I weakly curved dorsally from base, middle portion narrow, subapex broadened and gradually narrowed to apex, tip acute (Fig. 2 J–K), sculpture comprising striations, some branched, arranged longitudinally basally and oblique distally. Valvulae II, in lateral view, with blade-like area extending over distal 2/3; dorsal sclerotised and hyaline area present; dorsal margin with distinct fine teeth, teeth bluntly rounded, widely spaced, distributed from beginning of broadened portion to area before apex (Fig. 2 L–M). Host. Unknown. Material Examined. Holotype: male, China: Damingshan, Guangxi Province, 02. V. 2017, Collected by Wang Xianyi. Paratypes: female, same data as holotype. No. CTW19001.1–2. Distribution. China (Guangxi province). Etymology. The new species name combines the Latin words “ tri -” (three) and “ furcata ” (forked), referring to the three forked pygofer lobe. Remarks. This new species is similar to T. biprocessa Fan & Dai, 2015 according to the original description and illustrations, but can be distinguished by the male pygofer lobe with three processes, smooth aedeagal shaft and slender style.
- Published as part of Wang, Xian-Yi, Li, Zi-Zhong & Dai, Ren-Huai, 2020, Three new species of the leafhopper genus Thagria Melichar (Hemiptera Cicadellidae: Coelidiinae) from China, pp. 363-370 in Zootaxa 4821 (2) on page 364, DOI: 10.11646/zootaxa.4821.2.8, http://zenodo.org/record/4398785