478 1>RAG0NFLIES FROM AUSTRALIA AND TASAIAXIA, 



Head very hairy. Eyes bluish-grey; ejncranium black, with 

 large bkie postociilar spots ; /7'om6* pale blue; ^;o.*?/c/2/^?i°vt.s" black ; 

 anteclyppus and hihriim blue: Jahium pale yellowish-brown. 



Thorax hair3^ Pvothorax black, sides and posterior rim 

 brownish. Synthorax black above, with a pair of straight, moder- 

 ately broad, bluish-green, antehumeral bands; sides pale bluish- 

 green, shading to whitish below, with black markings in sutures. 

 Leys short, dull black above, pale brown beneath. 



Abdomen slender, cylindrical, 1-2 and 8-10 slightly en- 

 larged. Colour: 1, black, with two round brownish lateral spots; 

 2, basal half blue, rest black, with a clepsydrate brown dorsal 

 mark; 3-5, blue, except apical fifth, which is black; 6, all black; 

 7, basal fourth and apical fifth black, rest blue; 8, basal two- 

 thirds blue, apical third black; 9, basally blue, the apical suture 

 and two large lateral blotches, occupying about half the segment, 

 black; 10, black, with a large blue dorsal patch. 



Appendages shaped as shown in Plate xxiii., figs. 13-1 4; 

 superiors 0'3 mm., inferiors very minute; colour black, with pale 

 brownish hairs. 



Type, (J, in Coll. Tillyard. (Brisbane, a unique specimen, 

 taken by myself on Kedron Brook, January 22nd, 1913). 



Hah. — Brisbane, Q. It flies in company with Pseudagrion 

 australasice, which it resembles closely in colour, though not quite 

 so brilliant; the differences in shape and length of abdomen are 

 considerable. 



Two species are now known from Australia (viz., Agriofi lyelli 

 Tillyard, from Tasmania and Victoria, and A. hrishanense, n.sp.), 

 which appear to me to belong to the Palsearctic genus Ayrio7i, 

 with which they agree in their venation, general facies, and 

 colouration. The only difference seems to be the form of the 

 appendages, which are intermediate between the bifid type found 

 in European species of Agriou, and the simpler form exhibited 

 in the Australian genus Austroagrioii. I cannot at present see 

 my way to placing these two Australian species in a new genus; 

 so that, as they stand, they present somewhat of an anomaly in 

 zoogeographical distribution for this well-known genus. 



