NEW AUSTRALIAN SAW FLIES. 22$ 
1 and 1 $ paratypes in British Museum) ; 1 $ (paratype) var. with abdominal 
terga 1-7 black in the middle (though at the sides, and on segments 5, 6, and 
7, also on the front and hind margins, yellow), returned to Queensland Museum. 
This beautiful species is dedicated to Dr. R. C. L. Perkins, F.R.S. 
By its rich yellow colour and dark stigma, and by its sparse coarse 
puncturation with shining spaces between, distinguishable from all other species. 
The paler form is in colour superficially like X. aurulenta Morice and 
X. univittata W. F. Kirby, but both these have a pale stigma, dark hind femora 
and a densely finely punctured head and thorax. The dark form is rather like 
X. amenaida W. F. Kirby, but this is rather more black in colour and much more 
sparsely punctured, the head being almost entirely without punctures. 
REFERENCES. 
Benson, R. B. . . 1934 (1), Stylops, iii, 10 : 228-232, figs, 1-9. 
1934 (2), Trans. Roy. Ent. Soc., London, LXXXII, 2: 461-478, figs. 1-9. 
Morice, F. D. . . 1919, Trans. Ent. Soc., London, 1918 (1919) : 247-333, plates xi-xv. 
Westwood, J. O. 1880, Proc. Zool. Soc., London, 1880 : 359-379. 
