Plant No. 2 (5 //. In,/h). 

 1918. 



'■ Juii.e 4. — About 40 imagines — all red. 

 ,, 5. — About 15 imagines — all red. 

 ,, 10. — All imagines gone. 



Plant No. :^ (6 //. hi<ih). 



" Juii.e 4. — At the top 4 red imagines, then 1 green; below 



this again about 20 green followed by about 



50 nymphs. 

 ,, 5. — At the top 5 red with 2 nymphs in the midst 



of them, below 2 green followed by nymphs. 

 ,, 10. — Red imagines and nymphs intermixed, with 



1 green imago in the middle of them. 



" On June 111 had to go away and did not return for 10 

 days, when I found they had all disappeared." 



In a letter of Feb. 1, 1920, Mr. Feather included further 

 observations on the insect : — 



" The nymphs occur in fairly large numbers on one bush, 

 say from 50 to 250, and in a couple of hundred yards I have 

 counted 32 bushes bearing them. They are often found in 

 clusters on the underside of the leaves. This also applies 

 to the imagines. I have seen some hundreds of branches 

 with imagines on them, but have not been fortunate enough 

 to see one with all green at the top. I have seen them with, 

 say, one green at top, then a few red, then green again, red, 

 and so on, in many varying ways." 



Mr. A. Loveridge's observations at Morogoro (Mrogoro) in 

 ex-G.E.Africa agreed precisely with those of Mr. Feather. 



The arrangement observed in Mr. Feather's Nos. 2 and 3 

 supported the conclusion that the forms emerge in batches 

 or waves, and it followed that sometimes the order would 

 be that which produces likeness to a flowering spike with green 

 buds at the top. Considering its evident rarity and in view 

 of Mr. Feather's observations, Prof. Poulton now believed 

 that this flower-like arrangement was an accidental result 

 which was bound to happen from time to time. This con- 

 clusion was also supported by the fact that the species 



