BY R. J. TILLYARD. 457 



process went on affecting the other parts of the insect, and 

 left it with legs out of all proportion to the rest of the insect. 

 This one characteristic possibly takes us back as far as the 

 time when there was, on the earth, a group of Zygopterid 

 dragonflies, from which both Argia and Austrocneniis subse- 

 quently descended ; a time long before asthenogenesis had pro- 

 duced any of the extremely reduced forms found at the 

 present day. 



26. AusTROCNEMis SPLENDIDA Martin. 



cf. Appendages: sujierior 0-3 mm., black, with coarse 

 yellowish hairs ; divergent, thick, truncate ; inferior 0-25 

 mm., subtriangular, with very broad bases. (Plate xlviii., 

 figs.9, 10). 



Types: cf 9 , Coll. Martin. 



Ilab. — Alexandra, Victoria; December to February. Also 

 Atherton, N.Q., where I have taken a smaller form of this 

 rare insect. 



27. Agriocnemis hyacinthus, n.sp. 



Agriocnetuis velaris Tillyard, These Proceedings, 1907, 

 xxxii., p. 388. 



cf. Total length, 21-5; abdomen, 17; hindu'lng, 10-5 mm. 



Wings: neuration brownish ; post nod ah 6 in fore, 5 in 

 hindwing ; pterostignia 0-5 mm., pale brown in fore, black in 

 hindwing, scarcely covering one cellule. Head: epicranium 

 steely black shading to greenish near eyes ; an interrupted 

 yellow line along front ; postocular spots small, blue ; clypeus 

 black ; lahrvm brilliant metallic violet ; labium pale straw- 

 colour. Thorax: prothorax deep bronze finely edged with 

 yellow, sides yellow, posterior lobe projecting backwards 

 medially in a semicircle. Mesa- and metathorax bronze 

 above, with a pair of fine greenish or yellowish antehumeral 

 lines ; sides pale greenish or yellowish. Legs pale yellow 

 touched with black on tibiae and tarsi. Abdomen very 

 slender, 1-2 and 7-10 very slightly wider. Colour, 1-7 

 bronzy-black above, greenish or yellowish underneath ; 3-6 



