450 NEW AND KARE AUSTRALIAN AGKIUNID/E, 



pale dirty brownish, front hairy. Thorax: prothorax black, 

 with a tine blue line behind. Mcso- and metathorax jet black 

 above; a pair <»t" beautiful l)lue antehunieral stripes, followed by 

 a narrower bantl of black on each side; rest of sides rich blue, 

 with a touch of black in sutures; underside greyish-blue. Legs 

 dull blackish, femora pale greyish underneath. Abdomen 

 slendei', 1-ii and 7-10 very slightly wider than rest. Colour rich 

 blue marked as follows : 1, black lines in sutures; '_', a l)lack 

 L-shaped mark on each side (very variable); '^, a narrow black 

 basal band, and apical one-fourth black; 4-.5, apical one-fourth 

 black; 6, all black; 7, basal and apical quarters black, middle 

 part blue; 8, a pair of small black apical spots, often just touch- 

 ing dorsally; 10, blue with a fine black border. Underside pale 

 greyish-blue, sutures blackish. Appendages: superior 0*3 

 mm., divergent, black, blunt with a tiny hooked tip on outside 

 edge; seen in profile, they are thick, truncate, with the hooked 

 tip projecting from above. Inferior very short, close together, 

 rather rounded, pale dirty brownish' Plate xlviii., figs.l, 2). 



5. Differs from ^ as follows. Frontal parts of head pale 

 greenish-grey instead of blue (postocular spots blue as in ^). 

 Abdomen stouter, more cylindrical; 1, blue; 2, with large black 

 dorsal cup-shaped mark; 3-5, black above, blue on sides, the 

 black pattern being in tbe form of an elongated cup with slender 

 stem and broad base; 6, black, an incomplete blue line in each 

 suture; 7-8, black; 9, black, with a triangular or tripod-shaped 

 doisal blue patcli; 10, very short, blue, Appeiidages very short, 

 wide apart, bluntly pointed, black. 



JIab. — Gisborne, Vic, and Cressy, Tasmania. December to 

 January, 1908-1909. 



Types : ^^, and series of cotypes in my collection. 



This very beautiful and conspicuous species was first discovered 

 by me during a visit to my friend, Mr. Lyell, at Clisborne, Vic, 

 in December, 1908. It was Hying in company with Ansfroagj'ioii 

 ci/aiie Selys, on a small water-lily pond near Mount Macedon. 

 .Shortly after wai-ds, on crossing to Tasmania, I found it more 

 abundantly on the lagoons at Cressy. It is a most interesting 

 discovery, for, (excepting the doubtful Agrion purictum 8elys, 



