140 BRITISH TYEOGLYPHIDJE. 



1900. 



Dec. 25. Is getting sluggish. (It became more and more so until 



30th inclusive.) 

 31. It appears quite inert (torpid). It continued so until April 



9th, 1901. 

 1901. 

 April 10. It is lively. It is not adult ; no cast skin. (It continued 



lively until 13th inclusive.) 



14. Is inert. (It continued so until 23rd inclusive.) 

 24. It has undergone ecdysis, and is an adult ? . The cast 



skin is there. 



26. I put a into the cell. 

 30. Saw the two in copo. 



Cell 19. 

 1900. 



Dec. 7. Put three inert first nymphs into this cell. 

 8. One has emerged and is a second nymph. 

 11. The two others have emerged, all are second nymphs. 

 (They remained active until 30th December^ then gradu- 

 ally became sluggish.) 

 1901. 

 Jan. 8. All appear inert. (They remained so until the 23rd 



January inclusive.) 

 24. One has suddenly become quite lively. I have examined 



it, it is not mature. 



27. Another has become lively ; there are not any cast skins. 

 29. They have become extremely sluggish but not quite inert. 



(They remained in this condition until early in April.) 

 April 7. All three are quite lively. I have examined them, they are 

 not adult. I have lost one. (They remained active until 

 April 27th inclusive.) 

 28. They are sluggish but not inert. 

 May 4. One is now inert. Have accidentally killed the other. 



12. The remaining one has undergone ecdysis. It is now an 

 adult <?. 



Cell S. 7. 



This cell was kept entirely for larvae, most of which were put into 

 the cell in an inert condition ; as soon as nymphs emerged they were 

 removed out of this cell and placed in other cells. In this manner it 

 was possible to be certain that the nymphs placed in those cells were 

 really first nymphs. 



Cell S. 5. 

 1901. 



May 20. Put three active first nymphs, bred from lavvae in cell S. 7, 

 into this cell. (They remained active until 6th June in- 

 clusive, but on 29th May I lost one, leaving two only.) 

 June 7. Both apparently inert. 



11. One has emerged and is second nymph : the cast skin is 

 there. 



