Catonidia trilobata, Lv & Long & Yang & Chen, 2024

Lv, Sha-Sha, Long, Jian-Kun, Yang, Lin & Chen, Xiang-Sheng, 2024, Four new species of the planthopper genus Catonidia Uhler, 1896 from China (Hemiptera: Fulgoromorpha: Achilidae), European Journal of Taxonomy 943, pp. 127-143 : 136-138

Catonidia trilobata sp. nov.

urn:lsid:zoobank.org:act:E1099CB5-E925-4F8D-86C7-9

Figs 24–35 , 47

Diagnosis

Salient features of new species include: mesonotum ( Figs 24, 26 ) light yellowish brown at the top ⅓, ⅔ yellowish brown; apical margin of medioventral process ( Fig. 31 ) angular concave medially in ventral view; aedeagus ( Figs 33–34 ) asymmetrical at end, in left lateral view, dorsal lobe long finger-like, lateral lobes divide into three lamellar processes apically; basal lateral ⅓ of ventral lobe with wing-shaped process; in right lateral view, lateral lobes without three lamellar processes apically, narrowing apically, acute at apex.

Etymology

The specific epithet is derived from the Latin word ‘ trilobatus ’, referring to the lateral lobes of the phallobase in left lateral view being divided into three lamellar processes.

Type material

Holotype

CHINA – Guizhou Province • ♂; Daozhen County; 28°53′ N, 107°36′ E; 26 Aug. 2004; Xiang-Sheng Chen leg.; IEGU.

Paratypes

CHINA – Guizhou Province • 1 ♀; Maolan National Natural Reserve ; 25°24′ N, 107°96′ E; 30 May 1998; Zi-Zhong Li leg.; IEGU • 1 ♀; Xishui National Natural Reserve ; 28°50′ N, 106°41′ E; 1 Jun. 2000; Xiang-Sheng Chen leg.; IEGU . – Hainan Province • 1 ♂; Jianfengling National Natural Reserve ; 18°43′ N, 108°52′ E; 12 Jul. 2008; Qiong-Zhang Song leg.; IEGU • 1 ♂, 1 ♀; Jianfengling National Natural Reserve ; 18°43′ N, 108°52′ E; 18 Apr. 2009; Zheng-Guang Zhang leg.; IEGU .

Description

MEASUREMENTS. Body length including forewing: male 9.1–10.6 mm (N = 3), female 10.4–11.7 mm (N = 3).

COLORATION. General color yellowish brown ( Figs 24–25 ). Vertex and frons pale yellowish brown. Eyes reddish brown, ocelli light red. Genae pale brown. Pronotum and tegula yellowish brown. Mesonotum light yellowish brown at top ⅓, ⅔ yellowish brown. Forewings yellowish brown, large number of unclear grayish brown and dark spots distributed along veins, clavus terminally with dark brown marking, veins yellowish brown. Hindwings nearly hyaline, veins pale grayish brown. Legs and abdomen yellowish brown.

HEAD AND THORAX. Head ( Figs 24, 26 ) including eyes narrower than pronotum (0.6: 1). Vertex wider than long in middle line (1.9: 1), vertex concave, median carina present at base, anterior margin angular, posterior margin subangular concave, lateral margins ridged. Frons ( Fig. 27 ) longer in middle line than maximum width (2.1: 1), width at base narrower than width at apex (0.8: 1), median carina distinct, lateral margins concave. Postclypeus ( Fig. 27 ) shorter in middle line than frons (about 0.5: 1), median carina distinct, lateral margins excavate. Pronotum ( Figs 24, 26 ) longer in middle line than vertex (1.4: 1), median carina distinct, lateral carinae raised, not extending to posterior margin, confluent with midline at anterior margin to form angular process. Mesonotum ( Figs 24, 26 ) about 3.9 × as long as pronotum in midline, longer than pronotum and vertex combined (2.3: 1), apex of median carina unclear, lateral carinae reaching posterior margin. Forewings ( Fig. 28 ) broadened apically, longer than maximal width (2.4: 1). Hindwings ( Fig. 29 ) longer than widest part (1.6: 1).

MALE GENITALIA. Pygofer ( Figs 30–32 ) in lateral view with dorsal margin distinctly shorter than ventral margin, ⅓ of posterior margin strongly angulated caudad; in ventral view, apical margin of medioventral process angular concave medially. Anal tube ( Figs 30, 32 ) longer than widest part by about 1.6: 1 in dorsal view, apical margin rounded and convex, basal margin slightly truncate. Aedeagus ( Figs 33–34 ) asymmetrical at end, in left lateral view, phallobase broad at base, dorsal lobe long finger-like, lateral lobes divide into three lamellar processes apically, apical part curved dorsad; ventral lobe slender, bends and extends ventrad, pointed apically, basal lateral ⅓ with wing shaped process; apical part of phallobasal conjunctival processes curved dorsad, apical margin rounded, lateral side with long and narrow ear-like process at subapical part; in right lateral view, lateral lobes without three lamellar processes apically, narrowing apically, acute at apex; ear-like process of phallobasal conjunctival processes broad. Gonostyli ( Figs 30, 35 ) longer than wide, base narrow, apical margin broadly rounded, with stout twisted process rising from apical third of dorsal margin, inner side of base with finger-like process.

Distribution

China (Guizhou, Hainan provinces) ( Fig. 47 ).

Remarks

This species is similar to Catonidia choui Long & Chen, 2012 , but differs from the latter as follows: (1) anterior margin of vertex angular (anterior margin of vertex rounded in C. choui ); (2) apical margin of medioventral process concave medially in ventral view (apical margin of medioventral process convex medially in ventral view in C. choui ); (3) aedeagus asymmetrical (aedeagus symmetrical in C. choui ); (4) lateral lobes divide into three lamellar processes apically in left lateral view (lateral lobes without three lamellar processes apically in C. choui ).

Figures

Figs 24–35. Catonidia trilobata sp. nov., ♂, holotype (IEGU). 24. Habitus, dorsal view. 25. Habitus, lateral view. 26. Head and thorax, dorsal view. 27. Frons, ventral view. 28. Forewing. 29. Hindwing. 30. Pygofer, lateral view. 31. Pygofer, ventral view. 32. Pygofer, dorsal view. 33. Aedeagus, left lateral view. 34. Aedeagus, right lateral view. 35. Left gonostyli, inner surface. Scale bars = 0.5 mm.

Fig. 47. Geographic distributions of species of Catonidia Uhler, 1896.