角胸叶蝉属五新种(同翅目:叶蝉总科:耳叶蝉科)

FIVE NEW SPECIES OF THE GENUS TITURIA FROM CHINA (HOMOPTERA: CICADELLOIDEA: LEDRIDAE)

本文记述耳叶蝉科角胸叶蝉属五新种:锥冠角胸叶蝉Tituria pyramidata sp.nov.,宽冠角胸叶蝉Tituria laticoronata sp.nov.,盾冠角胸叶蝉Tituria clypeata sp.nov.,褐尾角胸叶蝉Tituria crinita sp.nov.,黑脉角胸叶蝉Tituria nigrivena sp.nov.。标本采自我国河北、四川、浙江及广东省。

This paper deals with five new species of the genus Tituria Stal, collected from China. All type specimens are deposited in Zhongshan University and Anhui Agricultural College. 1. Tituria pyramidata sp. nov. (fig. 1)This species resembles Tituria colorata Jacobi and Tituria nigricarinata Kuoh, but differs from the latters in its relatively larger size, in the color of crown, pronotum and scutel-lum brunneus, clypeus and forewings and in the shape of every element of the male genitalia.♂, Length: 13.0 mm, incl. tegm. 14.4 mm, of crown 2.0 mm; Width of head 3.7 mm; Exp. pronot. angl. 6.2 mm.Holotype ♂, Mt. Emei (500 m), Sichuan Prov, Aug. 30, 1975, coll by Meng Xu-Wu; paratype l♂, Jinghai Co., Hebei Prov., 1973. 2. Tituria laticoronata sp. nov. (fig. 2)This species is closely similar to Tituria plagiata Kuoh, but can be separated from the lat- ter by the relatively larger size, by the red basal portion of face, and by the shape of every element of the male genitalia.♂, Length: 11.0 mm, incl. tegm. 12.0 mm, of crown 1.8 mm; Width of head 3.7 mm; Exp. pronot. angl. 5.0 mm.Holotype ♂, Guangdong Prov.; Naam-Kong-Paai, Yaoshan (Mt. range), Yang-Shan Dist., Oct. 18-20,1934, F. K. To.3. Tituria clypeata sp. nov. (fig. 3)This species can readily be separated from other species of the genus by the pronotum with much shorter lateral angles, two black spots on each foveate impression on the anterior disk of pronotum, and by the structure of the male genitalia.♂, Length: 12.3 mm, incl. tegm. 13.3 mm, of crown 2.1 mm; Width of head 3.6 mm; Exp. pronot. angl. 4.7 mm.Holotype ♂, Guangdong Prov.: Siu-Ping-Shek, Tintong, Loh-obang Dist° Ⅸ-7-47, Tsang & Lam.4. Tituria crinita sp. nov. (fig. 4)This species resembles Tituria costalis Jacobi and Tituria maculata Kuoh in the shape and colour of body, but differs from the latters in its relatively larger size, in the apical part of forewings dark fuscus, and in the shape of Ⅶ abdominal sternum.♀, Length: 16.0 mm, incl. tegm. 17.0 mm, of crown 2.5 mm; Width of head 4.4 mm; Exp. pronot. angl. 6.1 mm.Holotype ♀, Guangdong Prov.: Naam-Kong-Paai, Yaoshan (Mt. range), Yang-Shan Dist., Oct. 29-30, 1934, F. K. To.5. Tituria nigrivena sp. nov. (fig. 5)This species is very similar to Tituria cuneata Distant, especially in the shape and colour of body, but can be separated from the latter by its comparatively larger size, and by the veins on posterior portion of apical half of forewings dark fuscus.♀, Length: 17.0 mm, incl. tegm. 17.8 mm, of crown 2.9 mm; Width of head 4.6 mm; Exp. pronot. angl. 6.6 mm.Holotype ♀, Mt. Fengyang (1,500-1,700 m), Longquan Co., Zhejiang Prov., Aug. 26, 1980, coll. by Tong Sue-Song. .