Andes latanalus Wang & 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 : 58-60

Andes latanalus Wang & Chen sp. nov.

urn:lsid:zoobank.org:act:43CD1492-8C7F-417E-A99C-93B68ECEC130

Figs 7–8

Diagnosis

The salient features of the new species include: anal segment very short and wide, wider than long ( Fig. 7H ); basal right side of ventral margin of periandrium with a triangular laminal process, which turns upward to form a long spinose process that bends inward twice at a right angle ( Fig. 7J ); basal ventral margin of endosoma with a small process that bends inward at an acute angle ( Fig. 7J–M ).

Etymology

The specific name is derived from the Latin adjective ‘ latanalus ’, referring to the anal segment which is very wide compared to its length.

Type material

Holotype CHINA • ♂; Guangxi Province, Huanjiang County, Mulun National Natural Reserve ; 24.8° N, 108.3° E; 28–29 Jul. 2019; Yong-Jin Sui, Zhi-Cheng Zhou, Xiao-Ya Wang and Jing Wang leg.; GUGC.

Paratypes CHINA • 18 ♂♂, 25 ♀♀; same collection data as for holotype; GUGC .

Description

MEASUREMENTS. Body length: male 5.9–7.2 mm (N = 19), female 7.2–8.2 mm (N = 25).

COLORATION. General color blackish brown ( Fig. 7A–B ). Eyes blackish brown, ocelli reddish brown, semi-translucent. Antenna yellowish brown. Vertex and rostrum generally brown. Face blackish brown. Pronotum yellowish brown. Mesonotum blackish brown. Forewing semi-translucent, basal and middle part with two oblique yellowish brown stripes, margin darker, basal costal vein; slightly anterior to stigma, posterior to stigma, radial area near claval fork and near fork MP 1+2 +MP 3+4 with an irregular puce spot, respectively; apical half of wing with brown patches. Veins light yellowish brown. Stigma and tubercles blackish brown. Hind tibiae yellowish brown. Ventral abdomen yellowish brown.

HEAD AND THORAX. Vertex ( Fig. 7A, C ) 1.6× as long as wide; lateral carinae strongly elevated, median carina absent. Frons ( Fig. 7D ) 3.6× as long as wide. Pronotum ( Fig. 7A, C ) 1.3× as long as vertex; posterior margin forming a right angle. Mesonotum 1.2× as long as pronotum and vertex combined. Forewing ( Fig. 7B, E ) 2.2× as long as wide, with twelve apical cells and seven subapical cells; RP with 3 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. 7F–G ) in ventral view symmetrical; in lateral view, lateral lobes arcuate and extended caudally. Medioventral process lanceolar in ventral view. Anal segment ( Fig. 7F, H ) very short, dorsal margin almost straight, ventral margin curved, apical margin truncate in lateral view; 1.5× as wide as long in dorsal view; anal style strap-shaped, extending beyond anal segment. Gonostyli ( Fig. 7G, I ) symmetrical ventrally; in inner lateral view, dorsal margin obtusely emarginate, apical part expanded, then gradually narrowed. Aedeagus ( Fig. 7J–M ) with two processes. Basal right side of ventral margin of periandrium with a triangular laminal process, turning upward to form a long spinose process bending inward twice at a right angle directed right-dorsocephalad. Endosoma claviform, long and slightly curved, basal ventral margin with a small process that bends inward at an acute angle, directed left-ventrocephalad.

FEMALE GENITALIA. Tergite IX ( Fig. 8A–B, D ) moderately sclerotized, with a large, nearly elliptical wax plate. Anal segment ( Fig. 8C ) rectangular, 1.6 × as long as wide in dorsal view, anal style linguiform. Gonapophysis IX ( Fig. 8F ) with one middle tooth, distance ratio between middle tooth to apex and length of denticulate portion 2.0. Gonoplac ( Fig. 8G ) rod-like, 4.4× as long as wide in lateral view. Posterior vagina pattern as shown in Fig. 8H .

Distribution

China (Guangxi).

Remarks

This species is similar to Andes formosanus (Mastsumura, 1914) in appearance, but differs in: (1) anal segment is very short and wide, much wider than long (anal segment longer than wide in A. formosanus ); (2) basal ventral margin of periandrium with a triangular laminal process, which turns upward to form a long spinose process that bends inward at right angles ( A. formosanus without process in the same position); (3) basal ventral margin of endosoma with a small process that bends inward at an acute angle (endosoma without a spinose process in A. formosanus ).

Figures

Fig. 7. Andes latanalus Wang & 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. 8. Andes latanalus Wang & 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.