Euricania brevicula, Xu & Liang & Jiang, 2006

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 : 3-4

Euricania brevicula , new species

( Figs. 14-26 )

Material examined. – Holotype - Male, China: Fujian, Fuzhou, Kuiqi , 100-200m, coll. unknown, 2 Aug.1955 ( IZCAS).

Paratypes: China, 2 males, 9 females, same data as holotype ; 7 males, 1 female, Fuzhou, Kuiqi, coll. unknown, 3 Aug.1955; 2 males, 27 females, Fuzhou, Kuiqi, coll. unknown, Jul.1955; 1 female, Fuzhou, Kuiqi, coll. unknown, 8 Aug.1955; 8 males, 3 females,

Jiuxianshan, coll. S. Z. Wang, 14 Jul.1979; 4 males, 3 females, GUANGXI: Bobai, coll. J. J. Wang, 18 Jun.1985 ; 2 males, GUANGDONG: Meixian, Yinnashan, coll. P. Lin, 4-7 Aug.1963 (all in IZCAS except 2 males, 1 female in RMBR) .

Length (incl. teg.). – Male 9.0-10.0 mm, female 10.5-11.5 mm.

Description. – Head (incl. eyes) ( Fig. 14 ) wider than pronotum. Frons ( Fig. 15 ) brown, longer than half length of frons; sublateral carinae shorter than central carina at about 1:1.2; lateral carinae brown. Carinae between eyes brown. Clypeus yellow, ecarinate or indistinctly carinate. Vertex ( Fig. 14 ) brown, wider at anterior margin than long in middle line about 15:1, with light brown maculae at each posterior corner; without central carina; occipital margin with a dark carina. Pronotum brown and narrow, wider at widest part than long in middle line about 5.5:1; punctated beside central carina; anterior margin carinate. Mesonotum and mesopleura brown.

Tegmina ( Fig. 16 ) with costal marginal fascia brown, with a yellow spot near middle, posterior outer corner of the spot with a rather small white spot; apical margin and inner margin each with a brown fascia; disc with 2 transverse brown fasciae: the outer one nearly straight and connected with apical fascia near posterior corner; the inner one forming a ring in middle, with median part of the ring white; common stalk of R1 and R2 longer than base cell. Wings ( Fig. 17 ) rather small, costal margin and inner margin with narrow brown fascias, apical margin with a broad brown fascia.

Legs yellow; fore femora with 2-3 lateral spines; middle femora with 3-4 lateral spines. Abdomen brown. Eyes brown or piceous. Ocelli yellowish.

Male genitalia. – Anal segment in dorsal view ( Fig. 18 ) trapeziform, longer than wide at middle about 1.5:1; lateral margin convex, apical margin slightly concave, basal margin slightly convex; ventral margin in profile ( Fig. 19 ) strongly convex; anal style set in middle close to apex. Aedeagus with connective symmetrical. Phallobase ( Fig. 20 ) with dorsal process short, directed first cephalad then laterad at apex, shorter than phallobase in middle line about 1:3; lateral process shorter than dorsal process at about 1:2. In ventral view ( Fig. 21 ), phallobase constricted near base, apex concave medially. In profile view ( Fig. 22 ), phallobase slightly dilated near base. Genital styles longer than wide at middle about 3:1.

Female genitalia. – Anal segment ( Fig. 23 ) rather small, ventral margin slightly convex; anal style set beyond middle, in dorsal view ( Fig. 24 ), apical margin slightly concave, ventral margin almost straight, lateral margin convex. Gonophysis VIII ( Fig. 25 ) shoe-shaped, basal part and anterior part in a right angle. Pregenital sternite ( Fig. 26 ) with anterior margin produced forward medially, ventral margin with median portion concave.

Distribution. – China (Fujian, Guangxi, Guangdong).

Remarks. – This species is similar to E. ocellus , but can be

separated from the latter by its long sublateral carinae of frons ( Fig. 15 ) and shorter dorsal spinose process of the male phallobase ( Fig. 20 ).

Etymology. – The species name is derived from the Latin breviculus, referring to the short dorsal spinous process of the male phallobase.

Figures

Figs. 14-26. Euricania brevicula, new species: 14, vertex, pronotum and mesonotum, dorsal view; 15, frons and clypeus; 16. tegmina; 17, wing; 18, male anal segment, dorsal view; 19, male genitalia, left side; 20, aedeagus, dorsal view; 21, aedeagus, ventral view; 22, aedeagus, left side; 23, female genitalia, left side; 24, female anal segment, dorsal view; 25, gonophysis VIII, right side; 26, pregenital sternite. Scale bars: Figs. 14, 15, 23 = 1.25mm; Figs. 16, 17 = 3.2mm; Figs. 18, 20-22, 24 = 0.4mm; Fig. 19 = 0.635mm; Figs. 25, 26 = 0.5mm.