438 NEW AND RAKE AUSTKALIAN AGKIOKlD^, 



with greyish-white pruinescence ; 1-2 slightly pruiiiescent. 

 One specimen has epicranium, prothorax, and upper surface 

 of thorax pruiuescent. 



These insects were flying quite strongly along the reedy 

 edges of the river, and were not easy to capture, considering 

 their size and build. 1 think that this more active and sun 

 loving habit may explain the greater pruinescence, and also, 

 perhaps, the finer development of this race, which is analo- 

 gous to the race uinabdis of Anjiulentts icte/on/clas, from the 

 same locality. 



Oristicta, n.g. (Plate xlvii., fig. 7). 



Banal posi costal ntrvule situated between the levels of the 

 two antenodals, but closer to the first than to the second. 

 Wings petioled to level of arculus. Inferior sector of tri- 

 angle absent; superior sector terminating at level of nodus, 

 forming only one cell beyond quadrilateral. Median sector 

 arising after the nodal cross-vein. I'terostigiiia very short, 

 of irregular quadrilateral shape. Abdomen slender, elonga- 

 ted. Superior appendages of male thick, clubbed, inferior 

 about half as long. Type, Uristicta fdicicola, n.sp. 



Distinct from all the preceding genera by the peculiar posi 

 tion of the median sector, also by the peculiar form of the 

 pterostigma. It resembles Isosticta and A'ososficta in the 

 shortness of the superior sector of the triangle, and further 

 resembles Isosticta in its elongated and slender abdomen. 



2U bis. Uristicta filicicola, n.sp. (Plate xlvii., fig.7). 



cf. Total length, 41-5; ahdonnii, Z'ib \ hind n'tng, 21-5 //;/// 

 Wings: neuration. fine, black; pterostigma 0-7 mm., 

 dark grey edged with black, surmounting a little more than 

 half a cell. Postnodals 12-14 in fore, 11-13 in hindwing. 

 Head narrow and small ; eyes very dark brown ; epirra- 

 iiiniii , cl gpeus, and lahrnin black, with pale brown sutures ; 

 labium pale brownish. Thorax: prothorax pale brown, 



