728 NEW AUSTRALIAN SPECIES OF THE FAMILY AESCHN1DJ3. 



triangular cream-coloured spot on the pyramid in front; behind 

 the ridge, low down on either side, is a large cream-coloured oval 

 spot. Postclypeus large, pale cream-coloured, with a pair of 

 squarish dark brown spots next anteclypeus, separated above 

 from the front by a very dark brown transverse band in the 

 suture; this band expands slightly downwards in the centre, 

 shading the postclypeus; anteclypeus small, dark brown. Labrum 

 cream-coloured, shaded at sides with dark brown, and surrounded 

 by the same colour; labium and mandibles dark brown, a round 

 cream-coloured spot on the gense. Thorax: Prothorax very 

 small, dark brown. Meso- and metathorax rich dark chocolate- 

 brown spotted with pea-green (yellow in immature specimens) as 

 follows — a pair of oval humeral spots, pointed in front; followed 

 behind by a pair of small spots slightly elongated transversely; 

 just below these, outwards, a pair of small narrow elongated 

 spots. Dorsal ridge elevated into an obtuse spine at the centre. 

 On each side are three small spots forming a triangle, and in 

 front of them a large round cream-coloured spot; above this a 

 small round subhumeral point; near the fore wing-join, two spots, 

 the upper one narrow, the lower subtriangular; low down near 

 the hind wing-join a rounded spot, followed in front by another 

 oval spot; and in front of the latter a large cream-coloured spot 

 low down on the metapleurum. Underside dirty brown. Legs 

 black, femora brown. Abdomen: 1-2 swollen, 3 pinched, 4-10 

 subcylindrical, broadening out from 5-7. Genital appendages of 

 2 very conspicuous, the segment projecting anally downwards so 

 as to form an acute-angled protuberance. Colour of abdomen 

 deep rich chocolate-brown spotted with pale pea-green (pale yellow 

 in immature specimens) as follows — 1 with a small round dorsal 

 spot, and a pair of larger lateral spots : 2 with a narrow triangular 

 basal dorsal spot flanked below on either side by a fine short 

 transverse line; a pair of anal spots separated by the dorsal ridge; 

 between them, on the ridge, a short line; low down on either 

 side, two spots, one basal and touching the base of the spur, the 

 other anal, rather pointed in front, spurs brown : 3-8 with a pair 

 of central dorsal spots separated by the dorsal ridge, narrow 



