Genus Anzygina Fletcher & Larivière, 2009

Anzygina agni (Knight), a typical Anzygina species.

© Copyright Murray Fletcher, Orange Agricultural Institute.

Museums

Regional Maps

• Anzygina Fletcher, M.J. & Larivière, M.-C. 2009. Anzygina, a new genus for some Australasian microleafhopper species formerly placed in the genus Zygina Fieber (Cicadellidae: Typhlocybinae: Erythroneurini). Australian Journal of Entomology 48(2): 164-176 [165].

  Type species:

   Erythroneura sidnica Kirkaldy, 1906 by original designation.

Introduction

The genus Anzygina is the dominant genus of Erythroneurini in Australia. Although there are only eight described species, plus two nomina dubia, at least 50 undescribed species have been recognised. The species are mainly coastal in distribution although some species are known from more arid inland localities. The distribution provided here includes the undescribed species. A publication describing all these species is in preparation. The name Anzygina literally means ‘not Zygina’ but it also reflects the main distribution of the genus between Australian and New Zealand. Species are also known from Papua New Guinea, the Solomon Islands, Western Samoa and Fiji.

Distribution

States

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

IBRA and IMCRA regions

IBRA

ACT, NSW, NT, Qld, SA, Tas, Vic, WA: Australian Alps (AA), Arnhem Coast (ARC), Brigalow Belt North (BBN), Brigalow Belt South (BBS), Broken Hill Complex (BHC), Carnarvon (CAR), Central Mackay Coast (CMC), Coolgardie (COO), Cape York Peninsula (CYP), Daly Basin (DAB), Darwin Coastal (DAC), Dampierland (DL), Einasleigh Uplands (EIU), Eyre Yorke Block (EYB), Flinders Lofty Block (FLB), Gulf Plains (GUP), Jarrah Forest (JF), Kanmantoo (KAN), Murray Darling Depression (MDD), Naracoorte Coastal Plain (NCP), New England Tablelands (NET), Northern Kimberley (NK), NSW North Coast (NNC), NSW South Western Slopes (NSS), Riverina (RIV), Sydney Basin (SB), South East Coastal Plain (SCP), South East Corner (SEC), South Eastern Highlands (SEH), South Eastern Queensland (SEQ), Swan Coastal Plain (SWA), Tanami (TAN), Tasmanian Northern Slopes (TNS), Tasmanian South East (TSE), Victoria Bonaparte (VB), Victorian Volcanic Plain (VVP), Warren (WAR), Wet Tropics (WT)

Other Regions

Lord Howe Island terrestrial & freshwater, Norfolk Island terrestrial & freshwater, Torres Strait Islands terrestrial, marine & freshwater

Diagnosis

Small delicate leafhoppers 2.5–4 mm long. Vertex longer medially than against eyes, medially roundly angulate or convex with coronal suture present over basal half. Ocelli absent. Pronotum longer than vertex with lateral margins clearly separating eye from base of tegmen and concave hind margin; approximately as wide as width of head across eyes, wider posteriorly than anteriorly. Tegmina translucent, of even texture throughout, frequently yellow or with yellow markings. Apical cell 3 (counting from sutural margin) basally truncate (closed with crossvein). Apical cell 2 narrower than cells 1 or 3. Male pygofer roundly truncate apically, bearing dorsal appendage semiarticulated with pygofer margin; ventral appendage absent; macrosetae short and submarginal or lacking; scattered hair setae on ventral, apical and dorsal areas. Subgenital plate with distinct subbasal mound bearing short, thick macrosetae in dense row which extends to half length of plate; oblique line of three to five macrosetae just basad of midlength; short hair setae in obscure row along dorsal margin, around apex and sometimes extending along venter of apical third of plate. Paramere apically T-shaped or truncate with preapical lobe not prominent. Connective short, quadrate with short median lobe (Fletcher & Larivière 2009).

Diagnosis References

Fletcher, M.J. & Larivière, M.-C. 2009. Anzygina, a new genus for some Australasian microleafhopper species formerly placed in the genus Zygina Fieber (Cicadellidae: Typhlocybinae: Erythroneurini). Australian Journal of Entomology 48(2): 164-176 [165–166]

History of changes