724 NEW AUSTRALIAN SPECIES OF THE FAMILY AESCHNIDjE, 



Hab. — Chili ; Blue Mountains (Katooniba), Australia; two 

 specimens only, captured by Mr. G. A. Waterhouse, December, 

 1903. 



The somewhat isolated group of genera, Petalia, Hypopetalia , 



and Phyllopetalia, are, except this one record, confined exclusively 



to Chili. 



ii. Subfamily AESCHNIN.E. 



Fifteen species of this subfamily are already recorded from 

 Australia. Four more are now added, three of which are new to 

 science, one of them forming the type of a new genus. 



1. Anax guttatus Burm. 



This large and handsome species is common throughout the 

 East Indies, New Guinea and the Seychelles. It has not, how- 

 ever, been recorded before from Australia. I found it flying 

 over the Carrington Marsh, Atherton, in January, 1905; later 

 on I noticed one or two specimens near Cairns, and one only at 

 Townsville. It is a most difficult insect to capture, for it flies 

 well out from the banks, darting in and out of the reeds at 

 terrific speed. I took half-a-dozen males in three days, but never 

 saw a female. There is only one way to capture them, and that 

 is to wade out into the marsh and hide in some favourite clump 

 of reeds, netting them as they career past. One failure in 

 striking is fatal, as the insect will at once mount high into the 

 air and disappear from sight. The flight is like that of Hemianax 

 papuensis, only more vigorous and dashing ; the dark green 

 thorax, followed by the brilliant sky-blue of the upper part of the 

 abdomen, makes this insect truly a magnificent object as it dashes 

 at lightning speed up and down the marshes. 



2. Planaeschna costalis, n.sp. 



£. Unique. Total length 92 mm.; abdomen 69 mm.; wings, 

 fore 69 mm., hind 68-5 mm. 



Wings with a deep russet-brown colouration covering the lower 

 half of the costal space up to nodus and all of it beyond, also all the 

 subcostal and median spaces, except the basilar area. Pterostigma 



