Japananus Ball, 1931

Xing, Jichun, Dai, Renhuai & Li, Zizhong, 2008, A taxonomic study on the genus Japananus Ball (Hemiptera, Cicadellidae, Deltocephalinae), with description of one new species from China, ZooKeys 3 (3), pp. 23-28 : 24

Japananus Ball urn:lsid:zoobank.org:act:D338AE42-A083-4E5C-AEEE-7397F5BD1C98

Japananus Ball, 1931: 218 . Type species: Platymetopius hyalinus Osborn, 1900 .

urn:lsid:zoobank.org:author:D2163044-9C2C-43EF-A348-FA1F2F4818EAurn:lsid:zoobank.org:pub:6B44547E-8C0E-4915-9832-ABDD969D844A

Description. Light green species, often with transverse brown bands on hyaline fore wings. Head conically produced in front, narrower than pronotum. Vertex medially depressed, transition between face and vertex angular, carinate, at least apically, disc shagreened. Face shagreened, frontoclypeus widened posteriorly, about twice as wide at bases of antennae as at apex, coronal sulci laterally divergent abruptly slightly beyond bases of antennae. Clypellus widened apically, extending beyond normal curve of genae. Fore wings hyaline, 3.0-3.4 times as long as wide, claval veins either fused in middle or connected by a cross vein; outer anteapical cell quadrangular, smaller than median anteapical cell, costal area without reflexed veins. Hind basitarsus with four platellae.

Male pygophore slightly longer than high, devoid of processes, with a few stout setae along ventro-caudal margin, ventral margin rather expanded. Tenth segment short, without processes. Subgenital plate with a caudal attenuated process, without stout setae. Style slender, elongate, with short finger-like apophysis, apex curved laterally. Connective slender, elongate, Y-shaped. Aedeagus with paired shafts, U-shaped in ventral view, each shaft with a subapical process. Gonopore opening adjacent base of subapical processes.

Size. Length (including tegmen): 4.3-5.5 mm.

Remarks. Japananus resembles Afrascius, Linnavuori, 1969 from the Afrotropical region. Both share a rather modified Y-shaped connective and similar subapical process on the paired shafts. However, Japananus lacks the anal collar process possessed by Afrascius , and the subgenital plates in Japananus have a caudal attenuated process while Afrascius has caudally truncate subgenital plates ( Viraktamath and Anantha Murthy, 1999).

Distribution. Australian Region, Nearctic Region, Palaearctic Region, Oriental Region.

Key to species (♁) of Japananus

1. Subapical process of aedeagal shafts forked ( Fig. 3 ) ............................ nepalicus

– Subapical process of aedeagal shafts not forked ( Figs 1, 2 , 8, 9 )..................... 2

2. Subapical process of aedeagal shafts straight and robust, with apices directed mediad ( Fig. 2 ) ........................................................................................ aceri

– Subapical process of aedeagal shafts sinuate and delicate ( Figs 1 , 8, 9 )........... 3

3. Apices of aedeagal shafts strongly developed, straight ( Fig. 1 )................... hyalinus

– Apices of aedeagal shafts weakly developed, curved ( Figs 8, 9 ).... bicurvatus sp. nov.

Figures

Figs 1-3. Aedeagus of Japananus species, ventral view. 1. Japananus hyalinus (Osborn); 2. Japananus aceri (Matsumura) (after Anufriev and Emeljanov, 1988); 3. Japananus nepalicus Viraktamath and Anantha Murthy (after Viraktamath and Anantha Murthy, 1999).

Figs 4-9. Japananus bicurvatus sp. nov. 4. Adult, dorsal view; 5. Male pygofer side, Valve and subgenital plate, lateral view; 6. Connective; 7. Style, dorsal view; 8. Aedeagus, ventral view; 9. Aedeagus, lateral view.