Paracatonidia webbeda, Long, Jian-Kun, Yang, Lin & Chen, Xiang-Sheng, 2015

Long, Jian-Kun, Yang, Lin & Chen, Xiang-Sheng, 2015, A review of Chinese tribe Achilini (Hemiptera: Fulgoromorpha: Achilidae), with descriptions of Paracatonidia webbeda gen. & sp. nov., Zootaxa 4052 (2), pp. 180-186 : 184-185

Paracatonidia webbeda sp. nov.

( Figs 1–13 )

Measurements. Body length (from apex of vertex to tip of forewing): male 10.3–10.8 mm (n = 5); forewing length: male 8.5–8.8 mm (n = 5).

Coloration. Yellowish brown. Vertex dark brown, a broad longitudinal stripe along midline, narrowing anteriorly, grey white ( Figs 1, 3 ). Frons and clypeus brown with three carinae dark brown ( Fig. 4 ). Rostrum and antennae brown. Genae grey white to grey brown ( Figs 2, 5 ). Eyes generally reddish brown, ocellus pale red ( Figs 2, 5 ). Pronotum brown with all carinae dark brown ( Figs 1, 3 ). Mesonotum brown with three carinae, two spots on disc and posterior apex of disc dark brown ( Figs 1, 3 ). Tegula brown with median longitudinal carina dark brown ( Figs 1, 3 ). Forewing brown with numerous, small, differently sized and diluted markings and three big dark markings ( Figs 1–2, 6 ). Hindwing pale brown, veins brown. Legs and abdomen yellowish brown.

Head and thorax. Ratio width of vertex at posterior margin to its length in midline 1.4 ( Fig. 3 ). Ratio length of frons in midline to its maximum width 2.2, ratio maximum width to width at apex 2.3 ( Fig. 4 ). Ratio length of postclypeus in midline to length of frons 0.4 ( Fig. 4 ). Apical and subapical segments of rostrum equal. Ratio length of pronotum in midline to length of vertex 0.9. Mesonotum in midline 4.4 times longer than pronotum, 2.3 times longer than pronotum and vertex combined; with median carina with anterior apex and posterior third obsolete; with lateral carinae with anterior quarter obsolete ( Fig. 4 ). Forewing with ratio of length to maximum width 2.2, vein Sc nine-branched. Hindwing with ratio of length to maximum width 1.2, vein A2 with 2 blind branches ( Fig. 7 ). Post-tibiae with a lateral spine in basal two-fifths, spinal formula 8–9–10.

Male genitalia. Anal segment in dorsal view ( Fig. 8 ) subround, with basal margin subtruncate, slightly excavate in midline, epiproct heart-shaped with apical margin exceeding apical margin of anal segment, anal style with subapex suddenly narrowing apically, distinctly exceeding apical margin of epiproct. Pygofer in lateral view ( Fig. 9 ) with posterior margin broadly convex above the middle, medioventral process ( Fig. 10 ) with apical half divided into two branches, each with apical margin convex, directed laterally. Genital style subelliptic with apical margin almost rounded ( Fig. 11 ). Aedeagus with phallobase bilaterally symmetrical, dorsal lobe short with apex bluntly angular; lateral lobe in lateral view ( Fig. 12 ) with ventral margin with a short sharp process, thence with apex ventrally extending, near apical margin with a long sharp process, directed ventrally; ventral lobe single, narrowing apically, acute at apex, directed dorsad. Suspensoria in lateral view ( Fig. 12 ) with broadly flaky portion connecting with genital lamina. Each phallobasal conjunctival process with apex broadly webbed like a duck foot (three toes), directed ventrally ( Figs 12–13 ).

Type material. Holotype: ♂, CHINA, Yunnan: Jingdong, Dajie (24°20'N, 101°01'E), sweeping, 21 August 2009, B. Zhang. Paratypes, Yunnan: 1 ♂, same data as holotype; 2 ♂♂, Zhenyuan, Mengda (24°02'N, 100°48'E), sweeping, 24 August 2009, B. Zhang; 1 ♂, Xishuangbanna National Natural Reserve, Menglun (21°55'N, 101°15'E), sweeping, 28–29 July 2012, Z.-M. Chang.

Etymology. The species name refers to the phallic appendage having an apex which is broadly webbed like a duck foot.

Host plant. Unknown.

Distribution. China (Yunnan).

Figures

FIGURES 1 – 13. Paracatonidia webbeda sp. nov. 1 – 2. Habitus (♂, dorsal and lateral views); 3. Head and thorax, dorsal view; 4. Face; 5. Head, lateral view; 6. Forewing; 7. Hindwing; 8. Male genitalia, dorsal view; 9. Male genitalia, lateral view; 10. Pygofer and genital style, ventral view; 11. Left genital style, inner surface; 12. Aedeagus, left lateral view; 13. Aedeagus, dorsal view. Co: connective, DL: dorsal lobe, GL: genital lamina, LL: lateral lobe, PCP: phallobasal conjunctival processes, Sh: sheath, Su: suspensoria, VL: ventral lobe. Scale bars: = 0.5 mm (Figs 3 – 5, 8 – 13); 1 mm (Figs 6 – 7).