Genus Syndelphax Fennah, 1963

Museums

Regional Maps

• Syndelphax Fennah, R.G. 1963. New genera of Delphacidae (Homoptera : Fulgoroidea). Proceedings of the Royal Entomological Society of London B 32(1-2): 15-16 [15].

  Type species:

   Delphax matanitu Kirkaldy, 1907 by original designation.

Introduction

This genus was created for a single species, Delphax matanitu Kirkaldy, from Fiji by Fennah (1963) who designated D. matanitu as the type species of the genus. Later (Fennah 1965), this species was recorded from Ayr in Queensland. Fennah (1975) listed two species in the genus from Sri Lanka, one of which included a synonymy between the type species and Delphax disonymos Kirkaldy. Fennah (1975) gave priority to D. disonymos despite D. matanitu being the type species and also appearing first in Kirkaldy (1907). Under the First Reviser principle (ICZN Art. 24), Fennah's selection of D. disonymos gives this name priority.

Distribution

States

Queensland

IBRA and IMCRA regions

IBRA

Qld: Brigalow Belt North (BBN), South Eastern Queensland (SEQ)

Diagnosis

Vertex little longer than broad, frons about twice as long as broad; lateral pronotal carinae incomplete; calcar many-toothed. Anal segment of male bispinose; pygofer with opening broader than long with rounded entire margins, anal angles moderately produced caudad; diaphragm short, dorsoventrally narrow, produced dorsad medially in a narrow process. Aedeagus tubular, simple or with few teeth subapically; genital styles relatively long, flattened and distally subtruncate (Fennah 1963).

Vertex as long or slightly longer than wide at base, slightly narrower at apex than at base, submedian carinae uniting at apex. Frons in midline about twice as long as wide. Postclypeus wider at base than frons at apex. Rostrum surpassing mesotrochanters. Antennae cylindrical, segment I longer than wide, shorter than segment II. Ocelli present. Spinal formula of hind leg 5-7-4. Post-tibial spur with 12–25 teeth. Anal segment of male ring-like or collar-shaped, lateroapical angles each produced into a spinose process. Pygofer in profile with laterodorsal angle moderately produced, in posterior view with opening wider than long, lacking medioventral process. Aedeagus tubular, simple or with a few teeth subapically: Suspensorium elongate oval, ring-like. Diaphragm narrow, produced dorsomedially in a rather long process. Parameres relatively long, flattened and distally subtruncate (Bellis and Donaldson 2015).

ID Keys

Fennah 1965: 4

Diagnosis References

Bellis, G.A. & Donaldson, J.F. 2015. Reassessment of some of Kirkaldy's Australian species of Delphacini (Hemiptera: Delphacidae: Delphacinae). Austral Entomology 1-13 [First published on line 17 December 2015 with pagination 1–13. Print version published August 2016, vol 55(3), 247-260] [10]

Fennah, R.G. 1963. New genera of Delphacidae (Homoptera : Fulgoroidea). Proceedings of the Royal Entomological Society of London B 32(1-2): 15-16 [15]

General References

Fennah, R.G. 1965. Delphacidae from Australia and New Zealand (Homoptera: Fulgoroidea). Bulletin of the British Museum (Natural History) Entomology 17(1): 1-59 [48]

History of changes