Euricania xizangensis Chou & Lu
Creators: name: Xu, Chang-Qing
name: Liang, Ai-Ping
name: Jiang, Guo-Mei
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Ricaniidae
Euricania
Euricania xizangensis

description: Euricania xizangensis Chou & Lu   
(Figs. 66-78)  
 Euricania xizangensis Chou & Lu, 1981: 225; Chou et al., 1985: 70.   
 Material examined. – China: 4 males, 2 females, XIZANG: Motuo, 800-1100m, coll. G. D. Ren, 17 Aug.2003 (HU); 1 female, Muotuo, Maniwong, 930m, coll. F. S. Huang, 25 Aug.1974 (IZCAS); 2 males, 2 females, Muotuo, coll. G. T. Jin, 13 Jul.1980 (SIE).   
 Length (incl. teg.). – Male 10.5-11.0 mm, female 11.0- 11.5 mm.   
 Description. – Head (incl. eyes) (Fig. 66) wider than pronotum. Frons (Fig. 67) piceous, sublateral carinae longer than half length of central carina at about 1:2; lateral carinae with basal part black and apical part light brown. Carina between eyes brown with median part black. Clypeus brown, central carina light brown. Vertex (Fig. 66) piceous, wider at anterior margin than long in middle line about 12.8:1, posterior corner without macula or with indistinct macula; carinate laterally, without central carina; occipital margin carinate, piceous. Pronotum piceous, narrow, wider at widest part than long in middle line about 6:1; punctated beside central carina; anterior margin carinate. Mesonotum and mesopleura piceous.   
Tegmina (Fig. 68) with costal marginal fascia piceous, with a yellow or yellowish spot near middle, posterior corner of the spot with one very small white spot; apical area piceous; apical margin and inner margin with piceous fasciae; disc with one transverse piceous fascia which is interrupted or disappeared near claval suture; common stem of R1 and R2 longer than basal cell, common stem closed to claval suture. Wings (Fig. 69) with apical margin with a piceous fascia, costal margin and inner margin without fasciae.  
Legs brown; fore femora with 2-4 lateral spines; middle femora with 2-5 lateral spines. Abdomen piceous. Tegula dark brown or piceous. Eyes piceous, ocelli rufous.  
 Male genitalia. – Anal segment (Figs. 70, 71) in dorsal view longer than wide at middle about 1.5:1, lateral margin convex, apical margin truncate, basal margin almost straight; ventral margin in profile (Fig. 70) strongly convex; anal style set about in middle, close to apex. Aedeagus with connective symmetrical. Phallobase (Fig. 73) with dorsal process short, directed laterad, shorter than half length of phallobase in middle line about 1:3.3; lateral process shorter than dorsal process at about 1:1.3. In ventral view (Fig. 74), phallobase constricted medially, apex concave medially; lateral process shorter than phallobase in middle line about 1:2.6. In profile view (Fig. 75), phallobase dilated near base. Genital styles (Fig. 70) longer than wide at middle about 3:1.   
 Female genitalia. – Anal segment (Fig. 75) rather small, ventral margin in profile slightly convex; anal style set beyond middle; in dorsal view (Fig. 76), apical margin straight, ventral margin nearly straight, lateral margins convex. Gonophysis VIII (Fig. 77) shoe-shaped, basal part and anterior part in a right angle, teeth of anterior part dilated apically. Pregenital sternite (Fig. 78) with anterior margin produced forward medially. Bursa copulatrix with second pouch smaller than first pouch.   
 Distribution. – China (Xizang).   
 Remarks. – This species is similar to E. longa and E. facialis, but can be separated from E. longa by its shorter dorsal spinose process of male phallobase (Fig. 72) and longer sublateral carinae of frons (Fig. 67) and from E. facialis by its dilated basal part of male aedeagus (Fig. 74), distinct carina of clypeus (Fig. 67) and the whole black body.
description: Published as part of Xu, Chang-Qing, Liang, Ai-Ping & Jiang, Guo-Mei, 2006, The Genus Euricania Melichar (Hemiptera: Ricaniidae) From China, pp. 1-10 in Raffles Bulletin of Zoology 54 (1) on pages 8-9, DOI: 10.5281/zenodo.4507945