Genus Paradorydium Kirkaldy, 1901

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Regional Maps

• Paradorydium Kirkaldy, G.W. 1901. On the nomenclature on the genera of the Rhynchota, Heteroptera and auchenorrhynchous Homoptera. The Entomologist 34: 336-340 [339] [replacement name; for Dorydium Burmeister, 1838].
• Dorydium Burmeister, H.C.C. 1838. Rhynchota. No. 1. Genera Insectorum 1: pls 10, 11, 17 20 [3] [junior homonym; of Dorydium Burmeister, 1835].

  Type species:

   Dorydium paradoxum Burmeister, 1838 by original designation.
• Carphosoma Royer, M. 1907. Remarques sur Dorydium lanceolatum Burm. (Hém., Hom.). Bulletin de la Société Entomologique de France 1907: 29-30 [29] [replacement name; unnecessary, for Dorydium Burmeister, 1838].
• Deltodorydium Kirkaldy, G.W. 1907. Leafhoppers — Supplement (Hemiptera). Bulletin of the Hawaiian Sugar Planters' Association Experimental Station Entomological Series 3: 1-186 [73] [first introduced as a subgenus of Paradorydium Kirkaldy].

  Type species:

   Paradorydium (Deltodorydium) brighami Kirkaldy, 1907 by original designation.

Taxonomic Decision for Synonymy

• Evans, J.W. 1937. Australian Leafhoppers (Jassoidea: Homoptera) Part 4. — (Ledridae, Ulopidae and Euscelidae, Paradorydiini). Papers and Proceedings of the Royal Society of Tasmania 1936: 37-50 [45] (synonymy of Deltodorydium Kirkaldy)

Introduction

Species that have been included in this genus are from Africa, Europe, Australia and New Zealand. Whether they are all congeneric remains to be confirmed. The Australian fauna includes seven recognised species although additional species may await recognition in collections. The length of the head can vary intraspecifically and may be associated with availability of resources during the nymphal stage. This raises questions about the validity of using the head structure to differentiate the species and a more intensive morphological and molecular study is needed to determine the species limits in the genus.

Distribution

States

Australian Capital Territory, New South Wales, Queensland, South Australia, Tasmania, Victoria, Western Australia

IBRA and IMCRA regions

IBRA

ACT, NSW, Qld, SA, Tas, Vic, WA: Australian Alps (AA), Coolgardie (COO), Einasleigh Uplands (EIU), Flinders Lofty Block (FLB), Murray Darling Depression (MDD), Nandewar (NAN), NSW South Western Slopes (NSS), Riverina (RIV), Sydney Basin (SB), South East Coastal Plain (SCP), South Eastern Highlands (SEH), South Eastern Queensland (SEQ), Swan Coastal Plain (SWA), Tasmanian South East (TSE), Victorian Midlands (VM), Victorian Volcanic Plain (VVP), Wet Tropics (WT)

Diagnosis

On the face of the head the labium is short and terminates between the fore coxae; the anteclypeus is parallel-sided and sometimes medially emarginate anteriorly and apically upturned and the lora are small. The maxillary plates are wide and the genae extend widely in front of the eyes. The antennal ledges are obscure. Posterior to the eyes, the face of the head narrows and may be either arrow-shaped or narrowly produced and centrally carinate. The frontal sutures diverge laterally and are parallel with the hind margin of the eyes. The ocelli are marginal and lie close to the apices of the frontal sutures. The crown of the head is triangular, or narrowly anteriorly produced to a varying extent. The pronotum narrows laterally and is sometimes carinate. The tegmina, which like the head and thorax are punctate, are narrow apically. The hind tibiae have three rows of strong spines, one row of which is mounted on enlarged bases, and a row of small spines (Evans 1966).

Diagnosis References

Evans, J.W. 1966. The leafhoppers and froghoppers of Australia and New Zealand. Memoirs of the Australian Museum 12: 1-347 [136]

History of changes