Andixius longispinus Zhi & Chen

Zhi, Yan, Yang, Lin, Zhang, Pei & Chen, Xiang-Sheng, 2018, Two new species of the genus Andixius Emeljanov & Hayashi from China (Hemiptera, Fulgoromorpha, Cixiidae), ZooKeys 739, pp. 55-64 : 57-58

Andixius longispinus Zhi & Chen sp. n. Figs 1-2, 5-16

Type material.

Holotype: ♂, China: Yunnan, Lushui County, Pianma Town (26°N, 98°36'E), 16 August 2000, Xiang-Sheng Chen; paratypes: 1♂1♀, same data as holotype.

Description.

Body length: male 6.2-6.5mm (N = 2), female 7.2 mm (N = 1); forewing length: male 5.4-5.5 mm (N = 2), female 6.3 mm (N = 1).

Coloration. General color yellowish brown (Figs 1-2). Eyes brown, ocelli faint yellow, semi-translucent. Antenna, vertex, face and rostrum generally yellowish brown. Pronotum with discal area yellowish brown and lateral areas dark yellowish brown. Mesonotum with areas between lateral carinae yellowish brown, lateral areas brown. Forewing semi-translucent, costal vein with 3 small spaced dark brown spots; slightly behind stigma, near claval fork and behind clavus with an irregular tan spot respectively, basal and middle part of forewings with two inner oblique brown stripes; apical half of wing with brown patches. Hind tibiae and ventral abdomen yellowish brown.

Head and thorax. Vertex (Figs 1, 5) 0.8 times longer than wide; anterior margin nearly straightly, posterior margin V-shaped recessed, median carina absent. Frons (Fig. 6) 2.6 times as long as wide. Pronotum (Figs 1, 5) 1.8 times longer than vertex; posterior margin obtuse-angled. Mesonotum 1.4 times longer than pronotum and vertex combined. Forewing (Figs 2, 7) 2.2 times longer than wide, with twelve apical cells and six subapical cells. Hind tibia with six lateral spines, usually small; chaetotaxy of hind tarsi: 7/6-7, 2nd hind tarsus with 0-3 platellae.

Male genitalia. Pygofer (Figs 9-10) symmetrical, dorsal margin shallowly concave and U-shaped ventrally, widened towards apex, slightly concaved medially; in lateral view, lateral lobes trapezoidal and extended caudally. Medioventral process triangular in ventral view, apical margin rounded. Anal segment (Figs 9, 11) tubular, dorsal margin almost straight, ventral margin waved in lateral view; 2.6 times longer than wide in dorsal view; anal style strap-shaped, not beyond anal segment. Genital styles (Figs 10, 12) symmetrical ventrally, inner margin with a small curved process near base; in lateral view, dorsal margin bending inwards medially, apical margin pediform. Aedeagus (Figs 13-16) with six processes. Right side of periandrium with a slender process, curved downwards basally and paralleled with periandrium distally; another short reversed spinose process directed dorsocaudally arising from basal 1/3 of right side of periandrium. Ventral margin with a large projection near apex, of which basal 1/3 longitudinally and distal 2/3 horizontally extended, directed ventrocephalically. Left side of periandrium with a very short spinose process, directed ventrocaudally. Flagellum with two processes, semi-sclerotized, generally curved in left side; apex with a very fine process, curved dorsocephalically; a process arising from base of flagellum, along the dorsal edge of the flagellum, directed ventrocephalically.

Distribution.

China (Yunnan) (Fig. 29).

Etymology.

The specific name is derived from the Latin adjective long- and spinus, referring to the one long process arising from the base of the flagellum, along the dorsal edge of the flagellum.

Remarks.

This species is similar to Andixius nupta Emeljanov & Hayashi, 2007 in appearance, but differs in: (1) right side of periandrium with a short reversed spinose process at apical 1/3 ( A. nupta without process in the same position); (2) left side of periandrium with a small process, not furcate (left side of periandrium with a large bifurcate process in A. nupta ); (3) flagellum with two processes (without process in A. nupta ).