Euricania clara Kato, 1932

Xu, Chang-Qing, Liang, Ai-Ping & Jiang, Guo-Mei, 2006, The Genus Euricania Melichar (Hemiptera: Ricaniidae) From China, Raffles Bulletin of Zoology 54 (1), pp. 1-10 : 4-5

Euricania clara Kato, 1932

( Figs. 27-39 )

Euricania clara Kato, 1932: 228 ; Chou & Lu, 1977: 314; Chou et al., 1985: 70.

Material examined. – China: 45 males, 7 females, BEIJING: Xijiao, 50m, coll. Y. R. Zhang , 8 Aug.1951 ; 38 males, Beijing , coll. Z. B. Zhang, 16 Sept.1936 ; 14 males, 7 females, Beijing , coll. unknown, 13 Aug.1935 ; 3 males, 38 females, Tiantan , 50 m, coll. unknown, 27 Aug.1938 ; 5 males, Wanshengyuan , coll. L. Y. Wang, 21 Jun.1948 ; 15 males, Xijiao, Yiheyuan , coll. Q. Zhou, 18 Aug.1956 ; 3 males, 4 females, Sanbao , coll. S. B. Liao, 19 Aug.1964 ; 4 males, 2 females, Xiangshan , coll. C. Q. Xu, 14 Jul.2001 ; 1 male, GANSU: Wenxian , coll. unknown, Jul.1988 ; 3 males, 4 females, SHANDONG: Pingyi, Wanshougong , coll. C. Q. Xu, 2 Oct.2002 ; 1 male, SHANXI: Qinling, Laoyu , coll. unknown, 8 Jul.1951 ; 14 males, 18 females, Wugong , coll. Y. Chou, 12 Aug.1956 (all in IZCAS except 4 males, 2 females in RMBR) .

Length (incl. teg.). – male 10.0-11.0 mm, female 12.0-13.0 mm.

Description. – Head (incl. eyes) ( Fig. 27 ) wider than pronotum. Frons ( Fig. 28 ) brown or dark-brown, central carina longer than half length of frons; sublateral carinae shorter than central carina at about 1:1.4; lateral carinae light brown. Carinae between eyes light brown. Clypeus yellow or light brown, ecarinate. Vertex ( Fig. 27 ) brown or piceous, wider at anterior margin than long in middle line about 15:1, posterior corner with macula, bright yellow; carinate sublaterally, without central carina; occipital margin carinate and piceous. Pronotum brown or piceous, narrow, wider at widest part than long in middle line about 6:1, punctated beside central carina; anterior margin carinate. Mesonotum piceous. Mesopleura brown or dark brown.

Tegmina ( Fig. 29 ) with costal marginal fascia brown or piceous, with a yellow spot near middle, posterior corner of the yellowish spot with one rather small white spot; apical margin with or without fascia, inner margin with a narrow brown fascia; disc without transverse fasciae; common stem of R1 and R2 longer than basal cell. Wings ( Fig. 30 ) with costal margin and apical margin without fasciae, inner margin with a narrow, light brown fascia.

Legs yellow; fore femora with 3-4 lateral spines; middle femora with 3-4 lateral spines. Abdomen brown or dark brown, dorsum dark brown or piceous. Tegula brown or dark brown. Eyes grey. Ocelli bright yellow.

Male genitalia. – Anal segment in dorsal view quadrate ( Figs. 31, 32 ), lateral margin convex; apical margin slightly concave, basal margin slightly convex, ventral margin in profile almost straight; anal style set about in middle close to apex. Aedeagus with connective symmetrical. Phallobase ( Fig. 33 ) with dorsal process short, directed dorsocephalad, shorter than half length of phallobase in middle line at about 1:3; lateral process shorter than dorsal process at about 1:2. In ventral view ( Fig. 34 ), phallobase not constricted medially, apex truncate. In profile view ( Fig. 35 ), phallobase slightly dilated near base. Genital styles ( Fig. 31 ) longer than wide in middle at about 3.4:1.

Female genitalia. – Anal segment ( Fig. 36 ) rather small, ventral margin almost straight; anal style set beyond middle.

Gonophysis VIII ( Fig. 38 ) tadpole-shaped; basal part and anterior part in an acute angle; teeth of anterior part normal, not dilated. Median part of pregenital sternite ( Fig. 39 ) with anterior margin and ventral margin nearly straight. Bursa copulatrix as in fig. 36.

Distribution. – China (Beijing, Shandong, Shanxi, Gansu); Japan.

Host plants. – Mulberry, silver chain, medlar.

Figures

Figs. 27-39. Euricania clara Kato: 27, vertex, pronotum and mesonotum, dorsal view; 28, frons and clypeus; 29, tegmina; 30, wing; 31, male anal segment, dorsal view; 32, male genitalia, left side; 33, aedeagus, dorsal view; 34, aedeagus, ventral view; 35, aedeagus, left side; 36, female genitalia, left side; 37, female anal segment, dorsal view; 38, gonophysis VIII, right side; 39, pregenital sternite. Scale bars: Figs. 27, 28, 36 = 1.25mm; Figs. 29, 30 = 3.2mm; Figs. 31, 33-35, 37 = 0.4mm; Fig. 32 = 0.635mm; Figs. 38, 39 = 0.5mm.