BY WALTER W. FROGGATT. 57 



a short truncate base, to which is attached the tubular appendage 

 nearly one-third of the length of the whole of abdomen. 



Hah. — Sutherland, Kenthurst, Sydney, N.S.W. (W. W. 

 Froggatt) - Gatton, Queensland (Mr, W. B. Gurney) — Hobart, 

 Tasm. (Mr. A. M. Lea)— Melbourne, Vic. (Mr. C. French, Junr.). 



The insects, in all stages of growth, are to be found at the end 

 of August, sometimes in great numbers, by beating or shaking the 

 dead foliage of Eucalypt bushes, where the trees have been cut 

 down, and the leaves have remained attached to the twigs, form- 

 ing a close shelter for them. When the dead leaves rest on the 

 ground and are disturbed, the Thrips run about on the ground 

 with the tip of the abdomen turned up over the back, much after 

 the manner of the Staphylinidse or Rove Beetles, for which at 

 first sight they might easily be mistaken. Mr. Gurney was for- 

 tunate in finding a large number of leaves with the eggs attached 

 to them; and I was thus enabled to watch the larvsc emerging from 

 the eggs, and to note their development in all stages. As yet 

 I have been unable to find how or ujDon what they feed, as there 

 can be little or no substance (at least for the young larvae) to 

 devour on the dry Eucalypt leaves; but one larva after hatching 

 remained enclosed under a watch glass for nine days without food. 

 Placed upon flowers and fresh foliage, they at once crawl off and 

 either rest on the sides of the jar or on the ground. 



EXPLANATION OF PLATE III. 



Idolotlirips spectrum. 



Fig. 1. — Eggs. 

 Fig. 2. — First larval form. 

 Fig. 3. — Second larval form. 

 Fig. 4. — Third larval form. 

 Fig. 5. — Perfect larva. 

 ^ Fig. 6. — First pupal form. 

 Fig. 7. — Second pupal form. 

 Fig. 8. — Perfect insect (imago). 



