A NEW GENUS AND THREE NEW SPECIES OF PENTHIMIINAE (HOMOPTERA, CICADELLIDAE) FROM CHINA

A new genus and three new species of Penthimiinae are described from China in the present paper. All type specimens are deposited in the Institute of Entomology,Guizhou University, China. Reticuluma gen. nov. Body somewhat depressed. Head obtuse, anteriorly rounded, vertex of head somewhat sloped, between crown and face with obvious boundary, its length about half as long as breadth between eyes; ocelli placed on the disc of the vertex a little middle, more remote from each other than from lateral margins; face somewhat concave, frons a little convex; pronotum longer than vertex, slightly convex, its anterior margin moderately convex, posterior margin slightly concave; scutellum triangula broader than long; forewings ridgelike, a little widened at middle, apical areas four or five, appendage narrow. Vertex, pronotum, scutellum and forewings with veins of network black. La- teral margin of pygofer side near apex with or without process; subgenital plate similar to triangule; aedeagus with or without process; connective Y-shaped or T-shaped; style narrowing from basal two thirds to apex, acute at apex. This new genus resembles Tambila Distant, but can be distinguished by vertex broad, anteriorly rounded, vertex, pronotum, scutellum and forewings with veins of network black. It is similar to Penthimia, but differs from the latter in the presence of a ob- vious boundary between vertex and face, forewings ridgelike and appendage narrow.The new genus is also similar to Neodartus,but verte somewhat sloped,its length about one half of the breadth between eyes. Etymology.The generic name is derived from the Latin Reticuluma(reticulum),in reference to the dorsum of body with reticulation.1 Reticuluma citrana sp.nov. (Figs.1-7) Length (incl.teg.):♂4.0-4.2mm, ♀4.3-4.8mm. Pygofer side of male with a process,subgenital plate sickle-shaped, aedeagus grenade-shaped, connective T-shaped. Vertex, pronotum and scutellum pale-yellow with netted stripes black, vertex with four small red spots, basal area of pronotum with a big black spot, forewings of male grey with two irregular black spots and netted stripes black. Holotype ♂, Luodian(25°43′N,106°74′E), Guizhou Province,15 June 1985, coll. CHEN-Bian. Paratypes: 2♂♂, 1♀, Daozhen, Guizhou Province, 16 June 1988, coll.LI Zi-Zhong; paratypes 2♀♀, Pingtang, Guizhou Province, 17 June 1981, coll.LI Zi-Zhong. Etymology.The specific name is derived from the Latin citanai(citr-),in reference to the type host.2 Reticuluma lini sp.nov. (Figs.8-13) Length (incl.teg.): ♂3.8-4.0mm, ♀4.1-4.2mm. Pygofer side of male without process, subgenital plate heart-shaped, end near aedeagus with a pair of hook processes, connective Y-shaped. Vertex milky white with four orang spots on disc, pronotum yellow with a large spot, ventral area of body black, dorsal area of abdomen orange. This new species is similar to Reticuluma cirtana sp. nov., but differs from the latter in the following aspects: on 1/3 of aedeagus near base with a long protuberance and a pair of hooks near apex; connective Y-shaped. Holotype ♂, Fuzhou, Jinshan (26°08′N, 119°30′E), Fujian Province,12 Nov. 1996, coll. LIN Nai-Quan. Paratypes 3♂♂, 1♀, Fuzhou, Jinshan, Fujian Province, 20 Apr. 1997, coll. LIN Nai-Quan. Etymology.The specific name is derived from the collecter(Prof.LI Nai-Quan)in order to remember his support for the study.3 Reticuluma spinata sp.nov. (Figs.14-19) Length (incl.teg.): ♂3.9-4.1mm, ♀4.1-4.3mm. Pygofer side of male without process, subgenital plate heart-shaped, end of aedeagus with two adverse spinae-shaped processes, connective T-shaped. Vertex, pronotum and scutellum yellow-fuscus, base of pronotum with a laege black spot. This new species is close to Reticuluma citrana sp. nov., but differs in pygofer side without process, end of aedeagus with two adverse spinae-shaped processes, subgenital plate heart-shaped. Holotype ♂, Libo(25°42′N,107°88′E), Guizhou Province, paratypes 2♂♂, 2♀♀, Libo, Guizhou Province, 15 Oct. 1988,