556 AUSTRALIAN INDIGENOUS HUMAN POOD-PROVIDING PLANTS. 



smallest hair or other part, in the position of life. . . . Both 

 sexes have short lives in the perfect state, and may be seen 

 lying about the ground under the trees, dead or dying, in abund- 

 ance after their noisiest few days. This particular species chiefly 

 frequents Eacalyptus viminalis. 



Psylla Eucalypti — An homopterous insect which, on the leaves of 

 Eucalyptus dumosa, produces " Lerp Manna" (q-v.). This and 

 many other species are in the preparatory stages covered with a 

 white cottony secretion, and their excrement forms threads or 

 masses of a gummy sucreous nature. 



See a paper by Thos. Dobson. B.A., in the Proc. U.S. Van 

 Diemen's Land of 1851, on the life-history of this insect. 

 Excellent plates and full particulars of its life-history are given. 

 A reprint of a paper by Dr. Anderson of Edinburgh, on the 

 same subject appears in the same volume. 



