Andes balteiformis Wang, Zhi & Chen, 2022

Wang, Xiao-Ya, Zhi, Yan & Chen, Xiang-Sheng, 2022, Five new species of the genus Andes Stål, 1866 from China (Hemiptera, Fulgoromorpha, Cixiidae), European Journal of Taxonomy 831 (1), pp. 45-66 : 48-49

Andes balteiformis Wang, Zhi & Chen sp. nov.

urn:lsid:zoobank.org:act:D7F20C71-5353-4788-AA5F-5E3D3E7A206A

Figs 1–2

Diagnosis

The salient features of this new species include: left side of ventral margin of periandrium with a beltshaped process in apical third ( Fig. 1K ); dorsal margin of endosoma with multiple small teeth ( Fig. 1L ); basal left side of endosoma with a long spinose process ( Fig. 1J ); apex of endosoma with two spinose processes ( Fig. 1J–L ).

Etymology

The specific name is derived from the Latin adjective ‘ balteiformis ’, referring to the belt-shaped process arising from the ventral margin of the periandrium.

Type material

Holotype CHINA • ♂; Guizhou Province, Rongjiang County, Jihua Town ; 25.8° N, 108.3° E; 24 Jul. 2016; Ying- Jian Wang leg.; GUGC.

Paratypes CHINA • 13 ♂♂, 22 ♀♀; Guangxi Province, Liongsheng County, Huaping National Natural Reserve ; 25.3° N, 110.2° E; 7–8 Aug. 2019; Yong-Jin Sui, Zhi-Cheng Zhou, Xiao-Ya Wang and Jing Wang leg.; GUGC • 6 ♂♂, 8 ♀♀; Fujian Province, Jianou City, Jianou Forest Protection Region ; 27.0° N, 118.1° E; 27 Aug. 2019; Yong-Jin Sui, Zhi-Cheng Zhou, Xiao-Ya Wang and Jing Wang leg.; GUGC .

Description

MEASUREMENTS. Body length: male 5.9–6.7 mm (N = 20), female 6.6–8.3 mm (N = 30).

COLORATION. General color yellowish brown ( Fig. 1A–B ). Eyes blackish brown, ocelli faint yellow, semitranslucent. Antenna, vertex, face and rostrum generally yellowish brown. Pronotum and mesonotum brown. Forewing semi-translucent, costal vein with spots, resembling a U-shape, lateral areas slightly darker; slightly anterior to stigma, posterior to stigma and near fork MP 1+2 +MP 3+4 with an irregular puce spot, respectively; apical half of wing with brown patches. Stigma yellowish brown. Veins yellowish brown. Tubercles brown. Hind tibiae yellowish brown. Ventral abdomen blackish brown.

HEAD AND THORAX. Vertex ( Fig. 1A, C ) 1.6× as long as wide; lateral carinae strongly elevated, median carina absent. Frons ( Fig. 1D ) 3.5× as long as wide. Pronotum ( Fig. 1A, C ) 1.7× as long as vertex; posterior margin forming a right angle. Mesonotum 1.2× as long as pronotum and vertex combined. Forewing ( Fig. 1B, E ) 2.3 × as long as wide, with thirteen apical cells and seven subapical cells; RP with 4 branches; MP with 5 branches (MP 11, MP 12, MP 2, MP 3 and MP 4); fork MP 1 +MP 2 basad of fork MP 3 +MP 4. Metatibiotarsal formula 8/8, second segment of hind tarsus with three platellae.

MALE GENITALIA. Pygofer ( Fig. 1F–G ) in ventral view symmetrical; in lateral view, lateral lobes arcuate and extended caudally. Medioventral process triangular in ventral view, apical margin pointed. Anal segment ( Fig. 1F, H ) flat, tubular, dorsal margin almost straight, ventral margin strongly curved at base in lateral view; asymmetrical, basal right lobe larger than left lobe, 1.6× as long as wide in dorsal view; anal style strap-shaped, not extending beyond anal segment. Gonostyli ( Fig. 1G, I ) symmetrical ventrally; in inner lateral view, dorsal margin concave in middle, apical margin slightly enlarged, bending inwards at an acute angle. Aedeagus ( Fig. 1J–M ) with five processes. Basal ventral margin of periandrium with a short spinose process, directed ventrad; left side of ventral margin of periandrium with a belt-shaped process on apical third, apex of process with small teeth. Endosoma broad, generally curved dorsad and cephalad, dorsal margin with multiple small teeth; left side of base with a long spinose process, directed cephalad; apex with two spinose processes, one short and small, directed ventrocephalad, the other slightly longer, directed ventrad.

FEMALE GENITALIA. Tergite IX ( Fig. 2A–B, D ) moderately sclerotized, with a large, nearly quadrate wax plate. Anal segment ( Fig. 2C ) rectangular, 1.9× as long as wide in dorsal view, anal style linguiform. Gonapophysis VIII ( Fig. 2E ) elongate and slightly curved upwards. Gonapophysis IX ( Fig. 2F ) with two middle teeth, distance ratio between middle tooth to apex and length of denticulate portion 2.1. Gonoplac ( Fig. 2G ) rod-like, 4.8× as long as wide in lateral view. Posterior vagina pattern as shown in Fig. 2H .

Distribution

China (Guizhou, Guangxi, Fujian).

Remarks

This species is similar to Andes maculifrons Muir, 1925 in appearance, but differs in: (1) ventral margin of periandrium with a belt-shaped process on apical third (ventral margin of periandrium with a triangular process on apical half in A. maculifrons ); (2) endosoma broad, apical margin with two spinose processes (apical margin of endosoma with only one spinose process in A. maculifrons ); (3) left side of periandrium without a spinose process (base of left side of periandrium with a tiny spinose process in A. maculifrons ).

Figures

Fig. 1. Andes balteiformis Wang, Zhi & Chen sp. nOv., ♂. A. Dorsal view. B. Lateral view. C. Head and thorax, dorsal view. D. Face, ventral view. E. Forewing. F. Genitalia, lateral view. G. Pygofer and gonostyli, ventral view. H. Anal segment, dorsal view. I. Gonostyli, lateral view. J. Aedeagus, right side. K. Aedeagus, left side. L. Aedeagus, dorsal view. M. Aedeagus, ventral view. Scale bars: A–D, F–M = 0.5 mm; E = 1.0 mm.

Fig. 2. Andes balteiformis Wang, Zhi & Chen sp. nOv., ♀. A. Genitalia, lateral view. B. Genitalia, ventral view. C. Anal segment, dorsal view. D. Tergite IX, caudal view. E. Gonapophysis VIII and gonocoxa VIII, dorsal view. F. Gonapophysis IX, lateral view. G. Gonoplac, inner lateral view. H. Posterior vagina, ventral view. Scale bars: 0.5 mm.