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Photo: A live Trichlaurax philippsi, a member of the beautiful and unusually hirsute genus Trichlaurax. It is photographed here on Eucalyptus flowers, one of its adult host plants where it feeds at nectar.

Specimen from Victoria, Australia.


Sydney Cetoniine Checklist

 

Cacachroa variabilis

Common in the Sydney region. Two forms exist with occassional intergrades between them: a brown and a black form.

Diaphonia dorsalis

Sometimes seen zooming around Sydney suburban backyards and along rainforest tracks in summer, particularly during February. More frequently seen in the suburbs than in the bush, it seems to have taken a liking to garden compost heaps wherein its larvae often breed.

Diaphonia palmata

This species is normally extremely rare in Sydney, being only a little more common in the north of its range, where it is still an uncommon or rare species. In north Queensland it occurs mainly on Eucalyptus flowers. I have found only a single specimen in Sydney, on Angophora hispida flowers.

Eupeocilia australasiae (Donovan)

Common along the east coast of Australia, it occurs mainly on Angophora spp. flowers where it feeds on nectar, but it can also occur on the flowers of other Myrtaceous species such as Acmena, Eucalyptus, Melaleuca and Leptospermum.

Glycophana brunipes

Moderately common in the Sydney Region. Specimens from the south of its range tend to be generally greener than those from further north in its range e.g. Brisbane area, Qld, where specimens are much more brownish in colour. Occurs mostly on the flowers of Angophora, Eucalyptus and Leptospermum spp.

Polystigma punctata (Donovan)

Moderately common along the east coast of Australia. Specimens from the Jervis Bay area on New South Wales' south coast are unusually large. Occurs mostly on the flowers of Angophora, Eucalyptus and Leptospermum spp.

Protatea fusca (Herbst)

This species is very common throughout Asia and is a very rare migratory visitor to the Sydney region. A small number of specimens were found in Sydney during November and December 1997, some of which were found feeding on the nectar of Angophora hispida.

Trichlaurax philippsi

A hirsute genus with some of the most unusual Cetonids in the world, and endemic to Australia and New Guinea. Trichlaurax philippsi is normally uncommon to very rare in the Sydney Basin area, though it can in some years be found in numbers within the Hunter region. Dorsally, Blue Mountains specimens and specimens from southern New South Wales and Victoria (see illustration above) are small and have silvery-white hairs in the elytral furrows, while specimens from northern New South Wales are a little larger and often have the elytral hairs slightly tinted with orange-brown. In northern Queensland, a form presently known as Trichlaurax macleayi has the elytral hairs always tinted orange-brown. Ventrally, the species is very hirsute and when seen in flight it looks like a flying gyrating fuzzball.

As with many Cetonids, adults typically fly back and forth and to and fro for some time before finally deciding, seemingly tentatively, to land in a bunch of flowers to feed at. Adults appear to select the flowers that are at their absolute peak bloom, and once the flowers begin to progress past peak, the tree will be abandoned. If even slightly disturbed on the flowers they are feeding adults will instantly drop out of the flowers and fly off.

Chlorobapta frontalis

Rare in the Sydney region, a little less rare in northern New South Wales and southern Queensland. Occurs mostly on the flowers of Angophora, Eucalyptus and Leptospermum spp.

Chlorobapta besti

Confined to the Blue Mountains region near Sydney, this species is normally quite rare. It occurs on flowering mallee-Eucalyptus sp. such as Eucalyptus stricta.

  

More to come at a later date....!


 

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Email: entom@eagles.bbs.net.au