492 ODONATA COLLECTED IN DUTCH NEW GUINEA. 



baud beyond it is not so wide as in the Utakwa River specimen, and does not reach 

 to the distal end of the pterostigma in any of the wings. 



The three females differ from one another but little in size, the hind-wings of two 

 specimens measuring 28 mm. in length and of the third specimen 29 mm. The large 

 basal coloured area, purple-black in one specimen and rich brown in the others, is 

 variable in the amount of its extension outwards ; in its maximum development it 

 approaches the pterostigma to within 4 cells in the fore-wing and 3 cells in the hind- 

 wing; in its minimum development as many as 7 cells lie between its margin and the 

 pterostigma in the fore-wing and 6 in the hind-wing. The milky band is unequal 

 in size in the different specimens compared. The apical brown cloud is also somewhat 

 variable in extent, in some cases reaching backwards as far as the proximal end of the 

 pterostigma, while in other cases it ceases before the middle of the pterostigma. 



