BY R. J. TILLYARD. 



461 



29. Agriocnemis argentea Tillyard. 



Tillyard, loc. cit., p. 192. 



cf. Appendages: superior 0-2 mm., black, appearing 

 somewliat pointed from above; viewed in profile, they are 

 very thick, irregularly rounded, with a small upper projecting 

 portion formed by a narrow incision into the main bulk near 

 its upper end ; inferior less than 0-1 mm., very flat and broad, 

 a tiny black tooth near upper end (Plate xlviii., figs. 11, 12.). 



30. Agriocnemis exsudans Selys. 



Selys, loc. cit., p. 54 (unique cf from New Caledonia). 



Several males of this very rare species were taken by Mr. 

 Alan MacCulloch at Vila, New Hebrides, in August, 1910, 

 and are now in my collection. It is not an Australian 

 species, but, as it is closely related to A . argentea, I append 

 a description of its appendages : — 



cf. Appendages: superior 0-2 mm., brownish, with a 

 large basal black patch ; seen from above, they are very broad 

 at base, curving to a fairly pointed tip ; in profile, the upper 

 projecting lobe is very thin, the incision wider, and the lower 

 main lobe larger and more rounded than in A. argentea; in- 

 ferior less than 01 mm., flat, broad-based, a tiny tooth pro- 

 jecting from the upper end (Plate xlviii., figs. 13, 14.). 



30 his. Agriocnemis materna Hagen at Selys. 



Dr. Ris informs me that he has received a fine series of this 

 rare dragonfly from Mr. H. Elgner, taken at Thursday 

 Island. I do not know the species, which I have not received 

 in any consignments from Torres Straits. Hagen's types 

 (cf $) were taken in Sumatra, and are now in the Leyden 

 Museum. This species has never been recorded from Aus- 

 tralia before. 



These appendages of the Australian species of Agriocnemis 

 and allies are of very great interest. If we compare, in Plate 

 xlviii., the profile views of the appendages of A. argentea and 



