三刺角蝉族Tricentrini系统学研究I.三刺角蝉属Tricenlrus中国八新种(同翅目: 角蝉科: 露盾角蝉亚科)

STUDIES ON SYSTEMATICS OF TRIBE TRICENTRINI (HOMOPTERA: MEMBRACIDAE: CENTORTINAE) I. DESCRIPTIONS OF EIGHT NEW SPECIES OF THE GENUS TRICENTRUS FROM CHINA

本文讨论了三刺角蝉族ＴｒｉｃｅｎｔｒｉｎｉＡｈｍａｄｅｔＹａｓｍｅｅｎ，１９７４特征及所辖４个属的关系，认为秃角蝉属ＣｅｎｔｒｏｔｏｓｃｅｌｕｓＦｒｎｋｈｏｕｓｅｒ，１９１４为其中一独立属。记述了三刺角蝉属Ｔｒｉｃｅｎｔｒｕｓ中国８个新种：胡颓子三刺角蝉Ｔ．ｅｌａｅａｇｎｉ，茶树三刺角蝉Ｔ．ｃａｍｅｌｉａｅ，马桑三刺角蝉Ｔ．ｃｏｒｉａｒｉａｅ，驼背三刺角蝉Ｔ．ｄｏｒｓｏｃａｍｅｌｏｉｄｅｕｓ，肖融瓣三刺角蝉Ｔ．ｃｏｌｉｇａｔｏｃｌｙｐｅｉｄｅｓ，油茶三刺角蝉Ｔ．ｃａｍｅｌｏｌｅｆｅｒ，半透翅三刺角蝉Ｔ．ｓｅｍｉｐｅｌｕｃｉｄｕｓ，以及铁刀木三刺角蝉Ｔ．ｃａｅｓａｌｐｉｎｉａｅ。它们的共同特征是：额唇基的中、侧瓣融合；雌性第９腹节背板的后上角管状。

The present paper deals with the taxonomic characters of the tribe Tricentrini Ahmad et Yasmeen, 1974 and the relationships of 4 genera belonging to the tribe. genus in this peper The genus  Centrotoscelus Funkhouser, 1914 is treated as a valid genus in this paper. Eight new species of the genus Tricentrus  Stl from China are described and figared. They are T. elaeagni, T. camelliae, T. coriariae, T. dorsocameloideus, T. colligatoclypeides, T. camelloleifer, T. semipellucidus, and T. cassiae. These new species share two characters: ① lateral lobes of frontoclypeus are fushed with median lobe; ② upper posterior angle of 9th abdominal tergum in female is a tube shaped. All the type specimens are deposited in the Entomological Museum, Northwestern Agricultural University. 1. Tricentrus elaeagni Yuan et Fan, sp.nov. (Fig.1) Medium, black. Lateral lobes of frontoclypeus fused with median lobe, with two thirds of its length below lower margins of vertex. Length from front of head to tops of tegmina♂5.30,♀5.82mm. Width between tips of humeral angles ♂1.64,♀2.20mm. Distance between tips of suprahumerals ♂2.65,♀3.00mm. This new species is similar to T. decurvatus Funkhouser, 1914 ,but differs from the latter in posterior process with basal part concave, tip not reaching tops of tegmina; eyes brown. Holotype♂, Mt. Heng, Hunan Province, 11-VII-1985, by Zhang Yalin et al.; paratypes:1♀, ditto; 2♂♂, Mt. Jiuxian, Fujian Province, 24-VII-1984, by Cui Zhi xin; Foping County, Shaanxi Province, 31-VII-1990, by Wang Yinglun. Host plant: Elaeagnus pungens Thunb. (Elaeagnaceae) 2. Tricentrus camelliae Yuan et Fan, sp.nov. (Fig.2) Small, black. Length from front of head to tops of tegmina♀ 4.63～4.79mm., ♂3.71～4.31mm., Width between tips of humeral angles♀ 1.93～2.06,♂1.69～1.86mm. Distance between tips of suprahumerals♀2.50～2.63,♂1.94～2.16mm. This new species is related to T. allabens Distant,1916 ,but differs from the latter in the following aspects; body smaller; suprahumerals slender, tip acute,spine shaped; thorax and sides of abdominal base without white pubescence; veins of tegmina with 2 rows of long hairs. Holotype♀, Sangang, Fujian Province, 16-VII-1984, by Cui Zhixin; paratypes:1♂, Tongmuguan, 18-VII-1983; 16♀♀, 22♂♂, Sangang, 9～16-VII-1984, by Cui Zhixin; 13♀♀,1♂, Mt. Wuyi, 21-22-VII-1988, by Yang Zhongqi. Host plant: Camellia sinensis (Linn.) Kuntze (Theaceae) 3. Tricentrus coriariae Yuan et Fan, sp.nov. (Fig.3) Small sized. Female length from front of head to tops of tegmina 4. 94mm. Width between tip of humeral angles 2.16mm. Distance between tips of suprahumerals 2.72mm. This new species is allied to T. neoplanicornis Yuan et Cui,1992 . but differs from the latter in lateral lobes of the frontoclypeus are fused with median lobe; body long and thin; suprahumerals with basal part extending upward and outward, apical part extending outward. Holotype♀, Lufeng County, Yunnan Province,29-VI-1971, by Chou Io and Yuan Feng. Host plant: Coriaria nepalensis Wall. (Coriariaceae) 4. Tricentrus dorsoacameloideus Yuan et Fan, sp.nov. (Fig.4) Small, brown species. Female length from front of head to tops of tegmina 4.25mm. Width between tips of humeral angles 2.06mm. Distance between tips of suprahumerals 2.69mm. This new species is similar to T. banguensis Funkhouser, 1914 ,but differs from the latter in its isosceles triangular shaped suprahumerals, their basal part broad, with only one ventral carina; the presence of an elevation on dorsum of the apical half of the posterior process; of apical part femora, tibiae and tarsi brown. Holotype♀, Medog Xian (900-1200m), Xizang, 9-XI-1982, by Han Yinheng. 5. Tricentrus colligatoclypeides Yuan et Cui, sp.nov. (Fig.5) Small, black. Length from front of head to tops of tegmina♀4.30～4.77mm. ♂3.50～3.69mm. Width between tips of humeral angles♀ 2.69mm. This new species is similar to T. colligatocypei Yuan et Cui, 1987 ,but differs from the latter in the fo