Species Japananus hyalinus (Osborn, 1900)

Japananus hyalinus (Osborn), adult.

© Copyright Murray Fletcher, Orange Agricultural Institute.

Museums

Regional Maps

• Platymetopius hyalinus Osborn, H. 1900. A neglected Platymetopius. Entomological News 11: 501-502 [501].

  Type data:

   Syntype(s) OSM 4♂, 5 ♀ (coll: vi.1897, J.S. Hine, on unidentified maple), Washington DC, USA.
• Platymetopius cinctus Matsumura, S. 1914. Die Jassinen und einige neue Acocephalinen Japans. Journal of the College of Agriculture, Tohoku Imperial University, Sapporo 5: 165-240 [215].

  Type data:

   
  Syntype(s) EIHU ♂ ♀, quantities unknown, Hokkaido, Honshu, Tokyo; EIHU ♂ ♀, quantities unknown, Kiushu (Satsuma).

Taxonomic Decision for Synonymy

• Oman, P.W. 1931. New Jassinae, with notes on other species. (Homoptera, Cicadellidae). Journal of the Washington Academy of Sciences 21: 430-436 [430] (synonymy of P. cinctus)

Generic Combinations

• Japananus hyalinus (Osborn, 1900). —
  Ball, E.D. 1931. Some new North American genera and species in the group formerly called Platymetopius (Rhynchota, Homoptera). The Canadian Entomologist 63: 216-222 [218]

Introduction

This sweet little leafhopper had probably been present in Australia for many years before its presence was noted in Orange, New South Wales, in 1998. Its host, Japanese maple, is a common ornamental in cooler parts of the country and it is expected that examination of these plants will reveal that J. hyalinus is also widespread.

Distribution

States

New South Wales

IBRA and IMCRA regions

IBRA

NSW: NSW South Western Slopes (NSS), Sydney Basin (SB)

Ecological Descriptors

All stages: phloem feeder (associated flora: Acer palmatum C.P.Thunberg [SAPINDACEAE]).

Extra Ecological Information

Host record of Ball (1931).

Associated Flora References

Ball, E.D. 1931. Some new North American genera and species in the group formerly called Platymetopius (Rhynchota, Homoptera). The Canadian Entomologist 63: 216-222 [218] (Acer palmatum)

Diagnosis

Elytra hyaline with dark points and fuscous bands arranged, one subbasal, one median and one sub-apical. Face bright sulphur yellow, vertex, pronotum, and scutellum yellow with some infuscation or greenish washes. Vertex acute, nearly twice as long as width at base, slightly less acute and produced in male, anteriorly depressed and with a conspicuous median impressed line running from base to tip. Front narrow, clypeus widenmg to apex, lorae almost a half-circle, genae evenly rounded. Prothorax of usual form, sides short, posterior edge very slightly emarginate at center. Elytra hyaline, without veinlets or narrow lines, the nerves conspicuous, but one transverse vein between second and third sector. Color: vertex yellow, more or less infuscated, the females showing a yellow wedge anteriorly, the males with deeper infuscation but having a margmal and anterior median stripe lighter. Face clear yellow with a marginal fuscous line just beneath margin of vertex, the margin of cheeks becoming somewhat greenish. Prothorax greenish yellow with slight trace of fuscous anteriorly in ♀ and faint milky irrorations in ♂. Elytral nervures fulvous in ♀, paler in ♂. Three fairly distinct transverse bands of fuscous spots, one, midway on clavus and including first transverse vein consists of transverse fuscous spots behind which to tip of cell is a smoky patch. The middle band includes a distinct black point at tip of clavus and on the nodal vein. The subapical band includes the anteapical transverse veins, the inner and outer of which are black, the fuscous points appearing in outer and middle anteapical cells in proximal part of three apical cells, those in the outer and middle apical cells forming a broken circle. Pectus black with yellow borders on coxal and pleural pieces. Abdomen above black on disk in female, with yellow border and apex, in male black with marginal yellow spots. Beneath light yellow in female, black in male. Legs yellow with black points at base of spines. Genitalia: Female, last ventral segment very much produced, reaching nearly half the length of the pygofer, tapering to a rounded point. Pygofer broad with a black spot near apex and a few short yellow bristles. Ovipositor equalling pygofer, black, with pale tip. Male, valve triangular with an acute median tooth. Plates narrow elongate with the tips curving dorsad in two large hooks, which in normal position would be included between the edges of the pygofer. Length ♀ 5.5 mm; ♂ 4.25 mm (Osborn 1900).

Diagnosis References

Osborn, H. 1900. A neglected Platymetopius. Entomological News 11: 501-502 [501–502]

History of changes