FIVE NEW SPECIES OF CEMUS FROM CHINA (HOMOPTERA: DELPHACIDAB)

This report deals with the descriptions of five new species of the genus Cemus Fannah, 1964 from China. The types of all new species have been deposited in the Anhwei Agricultural College.Cemus zhongtus sp. nov. (fig. 1)This species resembles Cemus sauteri (Muir), the former is separated from the latter by the median disc of the notum with pale hue, the relatively longer spinose processes of the anal segment, the inner margin of the genital styles distinctly sinuate in posterior view, and of its small prong on outer margin near middle, and the shape of the flagellum of the aedeagus differs distinctly.Male: length, 1.8 mm.; tegmen, 2.7 mm. Female: length, 2.35 mm.; tegmen, 2.9 mm.Holotype (?) and allotype (?), Kwangtung; paratypes 9 (?), 5 (?), Hainan, Yunnan, Fukien.Host-plants: Arachis hypogaca L., Hibiscus mutabilis L. Cemus duantus sp. nov. (fig. 2)This species resembles the foregoing new species, but separated by the shape of the posterior opening of the pygofer and of its darker marginal area, the small prong on outer margin of the genital styles near apex, and the structure of the flagellum of the aedeagus.Male: length, 2.2 mm.; tegmen, 2.9 mm.Female: length, 2.85mm.; tegmen, 3.15mm.Holotype (?), allotype (?) and paratype 1(?), Fukien. Centos zhangchus sp. nov. (fig. 3)This species is well distinguished from others of the genus by the medioventral process of the pygofer forming a long bifurcate lobe, and by the male genital organ different entirely.Male (brachypterous) : length, 2.2mm.Female (brachypterous): length, 2.4mm.Holotype (?), allotype (?), and paratypes 1 (?), 2 (?), Hainan.Cemus changchlas sp. nov. (fig. 4)This species can be separated from C. zhangchus Kuoh in the dark hue of the median disc of the notum, in the brachypterous form by the infuseation of the longitudinal stripes inserting inserting between the veins, and in the male genitalic structure.Male: length, 2.2 mm.; tegmen, 3.0 mm.Holotype (?), Kwangsi, paratype 1(?), Hainan.Cemus zhitus sp. nov. (fig. 5)This species differs from C. nigromaculosus (Muir) in the structure of the flagel-lum of the aedeagus, and in the shape of the genital styles, which are not sinuate in posterior view, as they are in nigromaculosus.Male: length, 2.2 mm.; tegmen, 3.0 mm.Female: length, 2.7mm.; tegmen, 3.3mm.Holotype (?) and allotype (?), Yunnan; paratypes 33 (?), 32 (?), Yunnan, Hainan.Host-plant: Arachfs hypogaea L.