BY R. J. TILLYARD. 189 



brown patch behind inwards. Antenna 3 as in £. Clypeus and 

 labruni brown. Labium and mandibles as in £. 



T h o r a x. — Prothorax black, spotted with brown. Meso- and 

 metathorax deep black, with a thin brown dorsal ray on the 

 ridge, broadest at base, and on either side a broader humeral ray 

 of a beautiful deep brown, followed by a sublateral brown band 

 cut by a black line about 2-5 mm. long from the fore wing-joins; 

 a black point near the hind wing-joins. Underside greyish. Legs 

 dirty brown. 



Abdomen cylindrical, thicker than in £, 8-10 swollen 

 below; 9 carrying underneath a brownish projection ending in 

 two small filaments. Colour : black, with metallic green reflec- 

 tions, sutures greyish or brownish. Underside dull brown or 

 black. (See Plate xvii., fig.75). 



Appendages very short - , separate, bluntly pointed, black. 



H a b. — Kuranda, Atherton, Cairns, N.Q. December-February. 

 Common at Kuranda. 



It is found on all the running streams, generally amongst reeds; 

 does not frequent marshes or still water. 



This fine insect, although common, has not been recorded 

 before. It is closely allied to P. pruinosum Burm., from which 

 it differs both in colouration and in its appendages. The latter 

 species is found in Java. Amongst our Australian members of 

 the genus the present species must take rank in size and beauty 

 next to /■*. Billinghursti Martin, a beautiful Victorian species 

 somewhat larger than this one. Our other species of this genus 

 are much smaller insects. 



8. PSEUDAGRION AUREOFRONS,. n.Sp. 



£. Total length, 34 mm.; abdomen, 28 mm.; wings, fore 19mm., 

 hind 18 mm. 



Wings. — Pterostigma 0'8 mm., trapezoidal, pale olive-brown. 

 Nodal Indicator |!2 11-12 

 ||2 9 | 



Head. — Epicranium black behind, with a transverse olive- 

 green ray reaching on to the eyes, where it is enlarged into a 



