BY R. J. TILLYARD. 743 



This genus comes closest to Syncordulia Selys, of the Austra- 

 lian Corduline genera, but may be easily distinguished from it by 

 the fact that Syncordulia has the sectors of the arculus separated 

 ^it their base, while the appendages of the male are very long. 



Type : Pseudocordidia circular is, n.sp. 



4. Pseudocordulia circularis,* n.sp. (Plate xxii., fig. 1). 



(J unique. Total length 44 mm.; abdomen 33 mm.; forewing 

 30 mm., hindwing 29 mm. 



Wings: neuration black; bases, especially in hindwing, 

 slightly suffused with pale yellow. Pterostigma very short 

 (l - 7 mm. in forewing, 2 mm. in hindwing), covering 1-1 J cellules, 

 black, rather narrow. First two postnodals of all wings not con- 

 tinuous. Membranule, fore, small and narrow; hind, narrow, 

 2 mm., dull smoky-grey. Anal triangle of hindwing broad, with 

 one cross-nervure very low down; anal margin much angulated. 

 A conspicuous cream-coloured spot on the bases of the forewings 



only. Nodal Indicator 

 black; front deeply cleft 



7 

 7-8 



Head: eyes black, vertex 

 medially, hairy, reddish-brown, 



shading to dull black above, and to brown at sides; clypeus dark 

 brown; labrum pale reddish-brown, narrow; labium broad, rich 

 brown. Thorax: prothorax very small, black. Meso- and 

 metathorax hairy, dark metallic-green. Legs short, black, coxae 

 and bases of femora russet-brown. Abdomen: 1-2 rather 

 narrow, 3-4 pinched, 5 gradually widening, 7-10 cylindrical. 

 Colour : 1, black with long brown hairs; 2, with conspicuous 

 russet-brown spurs; 2-10 jet-black. Appendages: superior 

 16 mm., black, excessively curved, the two together forming 

 practically a complete circle; bases well separated, a few hairs on 

 basal half of inner margin. Inferior same length (all three 

 meeting at tips), subtriangular, slightly hollow above, slightly 

 upcurved, bluntly pointed ; very dark reddish-brown. (See 

 Plate xxi., figs. 5 and 6). 



Hab.— Kuranda, N.Q. (F. P. Dodd; December, 1907). 



* Named from the exceedingly forcipate appendages, forming almost a 

 complete circle. 



