A new locality record for Hemiphlebia mirabilis Selys (Zygoptera: Hemiphlebiidae)

H. mirabilis is the only species in its family, characterised by an open discoidal cell in the forewing and postnodals which are not aligned with the veins behind them (F.C. FRASER, 1955, Ent. man. Mag. 91: 110-113). It is a small metallic green insect in which the males have white, expanded, inferior anal appendages which are used to display to the female by flexing of the abdomen (R.J. T1LLYARD, 1957, A reclassification of the order Odonata, R. Zool. Soc. NSW, Sydney). Its habitat is reed beds on a swamp margin and it is generally only the white flag-waving behaviour which renders the cryptically coloured species visible. Known originally only from a restricted site at Alexandra, Victoria, Australia (F.L. BILLINGHURST. 1900, Victorian Nat. 17: 5-9), it was, until recently, considered to be a Victorian endemic although thought to be extinct at Alexandra since the mid 1970's. D.A.L. DAVIES (1985, Odonatologica 14: 331-339) discovered a new colony at Wilsons Promontory National Park, in southern Victoria. In 1992 another colony was found in the Mt William National Park in northeast Tasmania. J.W.H. TRUEMAN et al. (1992, Odonatologica 21: 367-374) included the Tasmanian sightings in a review of the earlier Victorian observations and recent re-discoveries at Alexandra and Yea. Wilsons Promontory and Mt William lie at opposite ends of the Bassian Rise, a submarine connection between Victoria and Tasmania. The geology of the two localities is similar, consisting of spectacular granite intrusions. Also on the Bassian Rise are the Fumeaux Group of islands, the largest of which is Flinders Island. In late November 1992 my wife and I visited the island in the hope of filling the gap in the distribution. We searched all of the accessible wetlands but with no success; it needs local knowledge for a thorough survey. Upon leaving I described the species and its behaviour to the District Ranger, Colin Spry, and subsequently sent him a photograph of a male from Wilsons Promontory,