742 ON SOME REMARKABLE AUSTRALIAN CORDULIIN^E, 



near water. (The shape of the appendages of the male is shewn 

 in Plate xxi., figs. 3 and 4). 



3. Hemicordulia continentalis Martin. 



A single male of this rare species was taken by me on the 

 railway line near Kuranda, N.Q., in January, 1905. It is some- 

 what smaller and darker than the types in M. Martin's collection. 



PSEUDOCORDULIA, n.g. 



Closely allied to Gomphomacromia Br., (Chili). Triangles 

 normal, free. Inner angle of triangle of hindwings placed well 

 beyond the level of the arculus. Sectors of thearculus united at 

 their base. Only one row of discoidal cells following the triangle 

 of the forewings. Basilar space of all wings free; one cross- 

 nervule in submedian space of forewings, two in that of hindwings, 

 the second being placed between the level of the arculus and the 

 inner angle of the triangle. Second antenodal of all wings 

 exactly above and in line with arculus. Superior appendages of 

 male short and excessively curved, inferior about the same length, 

 triangular. No tubercle or spine on segment 10 of male. 



The following table will shew the points of difference from 

 Gomphomacromia : — 



Gomphomacromia Br. Pseudocordulia, n.g. 



[G. paradoxa Br., type]. [P. circularis, n.sp., type]. 



First two antenodals separa- First two antenodals no wider 

 ted by a wide space; no ante- apart than the others; second 

 nodal continuous with the antenodal continuous with the 

 arculus. arculus. 



Six antenodals only in fore- Nine antenodals in fore- 



wing.* wing. 



Second submedian cross- Second submedian cross- 



nervure of hindwing placed nervure of hindwing placed 

 before the level of the arculus. after the level of the arculus. 



Inferior appendage of male Inferior appendage of male 



quadrilateral, forked. triangular, bluntly pointed. 



* G. Volxe.ml Selys, which possesses 10 antenodals, is not a true Gompho- 

 macromia, differing from the type in several important respects. 



