Genus Metadelphax Wagner, 1963

Museums

Regional Maps

• Metadelphax Wagner, W. 1963. Dynamische Taxionomie, angewandt auf die Delphaciden Mitteleuropas. Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut 60: 111–180.

  Type species:

   Delphax propinqua Fieber, 1866 by original designation.

Introduction

This generic name was synonymised with Toya Distant by Fennah (1964) by moving the type species, Delphax propinqua Fieber, from Metadelphax to Toya. The name was restored by Ding (2006) when he transferred propinqua back to Metadelphax. Metadelphax propinqua (Fieber) is the only Australian representative.

Distribution

States

Queensland

IBRA and IMCRA regions

IBRA

Qld: South Eastern Queensland (SEQ)

Diagnosis

The definitive features for this genus appear to be the dorsocaudal margin of the pygofer expanded, subapically inflected into medially to ventrally directed apices, the genital diaphragm much higher than wide, and the processes on segment X basally approximated, usually arising below the dorsal margin in lateral view. Also, the aedeagus is tubular, straight or slightly downcurved, bearing subapical dorsal teeth. Metadelphax is superficially quite similar to Toya, except that the genital diaphragm is much taller than wide, and the aedeagus tends to be straight to slightly downcurved (Gonzon and Bartlett 2007)

Diagnosis References

Gonzon, A.T. & Bartlett, C.R. 2007. Systematics of Hadropygos n.g., Metadelphax Wagner and New World Toya Distant (Hemiptera: Delphacidae). Transactions of the American Entomological Society 133(3): 205–277 [233–234]

History of changes