10 The Queensland Naturalist 
November 1949 
area. The latter species has been taken also from shal- 
low well-holes dug at the edge of the freshwater swamps, 
where it was associated with Anopheles annulipes and 
Culex ( Lutzia ) halifaxi. Larvae of Aedes notoscciptus 
have been found in undrained grave-tops (associated 
with C. fatigans ) , in tins in the bush, and in a cavity 
in a log where they were associated with Aedes trewula. 
A group of species, some very restricted in their 
distribution, others to be found also further afield, form 
the characteristic fauna of the coastal areas of South 
Queensland, where fresh-water sedge and tea-tree swamps, 
open heaths with scattered pools and patches of pandanus 
and vine-scrubs occur, often within a short distance of 
tidal flats and mangroves. The majority of these species 
are known to occur about Dunwich. One section of 
them, comprising a number of species of the genus Aedes, 
breed in shallow depressions in the ground which are 
filled by heavy rain, the adults often appearing in less 
than a fortnight after the pool is formed. It is thought 
that in many cases the eggs are deposited in the mud and 
undergo a period of dessication before hatching when 
the breeding place is filled by rain. A series of such 
breeding places is to be found in the Two-Mile Scrub 
between Dunwich and Myora when, after a dry period, 
heavy rain has fallen. 
This is the only location from which larvae of the 
rare large Aedes aculeatus have been collected so far, Mr. 
L. J. Callaghan, a former school teacher at Dunwich, 
being responsible for their discovery, and the only known 
males of this species are from here also, though the species 
ranges from Port Macquarie to Tewantin. Other species 
found breeding in casual pools in the Two-Mile scrub 
are Aedes funereus, Aedes similis, Aedes rabrithorax 
Aedes alboannulatus, Aedes vittiger and Aedes (Muci- 
dus ) alternans. Aedes vigilax larvae may occasionally 
be collected though they are more common in brackish 
pools nearer the beach, but this species, the black bush 
mosquito, does not appear to be as common here as on 
the mainland. Adults of all these species may be taken 
biting. A. aculeatus can be recognised by its large size, 
and. under a lens, the head and sides of the thorax are 
seen to be clothed with distinctive, flat, oval, yellow scales. 
Aedes multiplex is a rare species taken biting in the 
in the swamps and scrub, which is known to breed in 
