摘要
本文记述耳叶蝉科片头叶蝉属三新种:圆冠片头叶蝉Petalocephala crcuata Cai et Kuoh,褐缘片头叶蝉Petalocephala fuscomarginata Cai et Kuoh,赭片头叶蝉Petalocephala ochracea Cai etKuoh。标本采自我国云南及四川省。文中描述了新种的外部形态及雄性外生殖器构造特征,并与近似种进行了比较。模式标本保存于安徽农学院。
The present paper deals with three new species of the genus Petalocephala Stal, 1853, collected from Yunnan and Sichuan Provinces, China. The type specimens are deposited in the Anhui Agricultural College.
1. Petalocephala arcuata Cai et Kuoh, sp. nov. (fig. 1) This species is closely similar to Petalocephala chlorophana Kuoh in the size, colour and shape of the body, but differs from the latter in the forewing without a fuscus spot on dick, in the posterior margin of the last abdominal sternium of male convex, and in the shape of every element of male genitalia. ?, Length. 8.7 mm; incl. teg. 10.0 mm; of crown of head 1.5 mm, Width of head 2.8 mm.
Holotype , paratype 1, Jinghong Co., Yunnan Prov., May 20, 1974, coll. by Wei Chong-Shen.
2. Petalocephala fuscomarginala Cai et Kuoh, sp. nov. (fig. 2)
This species is allied to the foregoing new species, but is easily separated by the relatively big size, by the apical portion of costal margin fuscus, and by the structure of every clement of male genitalia.
?, Length. 10.0 mm; incl. leg. 10.8 mm; of crown of head 1.6 mm, Width of head 3.0 mm.
Holotype , Jinghong Co., Yunnan Prov., May 25, 1974, coll. by C. S. Wei.
3. Petalocephala ochracca Cai ct Kuoh, sp. nov. (fig. 3)
This species can be readily distinguished from other species in the genus by the smaller size, the shape of body slender, by the pygofer with a hook-like process, and by the apical part of aedeagus with two carinae.
?, Length. 8.5 mm; incl. teg. 9.4 mm; of crown of head 1.5 mm, Width of head 2.6 mm.
Holotype , Chengdu, Sichuan Prov., Aug. 15, 1955, coll. by Kuoh Chung-Lin.
