Genus Dworena Medler, 1986

Dworena hyacintha (Kirkaldy), type species of Dworena.

© Copyright Murray Fletcher, Orange Agricultural Institute.

Museums

Regional Maps

• Dworena Medler, J.T. 1986. Anzora and Dworena, two new genera erected for Australian species formerly placed in Paratella and Sephena. (Homoptera: Fulgoridae). Insecta Mundi 1(4): 206-208 [207].

  Type species:

   Sephena hyacintha Kirkaldy, 1906 by original designation.

Introduction

This genus was created for two Australian species variously described as species of the oriental genera Paratella Melichar or Sephena Melichar. Despite the fact that both species are reasonably common in eastern Australia, little is known of their biology.

Distribution

States

New South Wales, Queensland

IBRA and IMCRA regions

IBRA

NSW, Qld: Cape York Peninsula (CYP), Nandewar (NAN), NSW North Coast (NNC), Sydney Basin (SB), South Eastern Queensland (SEQ), Wet Tropics (WT)

Other Regions

Torres Strait Islands terrestrial, marine & freshwater

Diagnosis

In dorsal view, anterior margin of vertex shallowly convex, its curvature roughly paralleling pronotal anterior margin, projecting slightly at the middle due to terminus of frontal median carina; vertex much wider than long, ratio about 4 to 1. Frontal area slightly longer than wide, lateral margins elevated, thinly carinate from postero-dorsal margin of head to clypeal suture, disc tricarinate, the lateral carinae evanescent ventrally, strongly U-shaped dorsally, the median carina strong, 4/5th length of front, the margin between front and vertex well defined by the U carina. Frontoclypeal margin transverse, clypeus strongly elevated from the margin, convex laterally, rostrum extending beyond mesocoxae. In lateral view, genal space anterior to eye following curvature of front, convex dorsally and slightly elevated above dorsal margin of the eye. Pronotum twice longer than vertex, lateral margin carinate on anterior half, postocular eminence small and conical. Pronotum and mesonotum with longitudinal median carina, mesonotum with lateral carinae not as strong as the median carina. Tegmina brown to very dark brown, with dark pustules and contrasting pigment spots scattered irregularly on membrane; veins R, S and M arising together at node of the basal stem, discal cell closed by crossvein bearing pigmented spot at centre, about 20 terminals at apical margin, forked premarginally but without crossveins forming a submarginal line, both angles obtusely rounded, apical margin oblique between the angles. Metatibial lateral spines 1, apical spines 7. Length 6.5–9 mm, with females in populations slightly longer and more robust than the males (Medler 1986).

ID Keys

Fletcher, M.J. (2005). Illustrated key to the genera of the family Flatidae found in Australia (Hemiptera: Fulgoroidea) http://www1.dpi.nsw.gov.au/keys/fulgor/flatid/flat00.htm

History of changes