Relationship between certain West African Insects. 463 
“ No. 621 A—D. I have now 3 more pupae and | larva 
which are, I feel almost sure, Megalopalpus, and the 
interesting point about them is that they would not take 
the Jassid Nehela ornata which was eaten by my 2 previous 
larvae. 
‘* Larva 621 A. was found in the forest near Oni, on 
Jan. 22, 1912, in an ant-shelter on Triumfetta cordifolia, 
Guill. and Perr. There were no Jassids at all in this 
shelter, but it covered a large number of little green hopping 
creatures which look to me hke immature Membracids. 
[Seven Membracid larvae of various sizes with 45 & min. 
and 2 $ maj. Pheidole aurwilli kasaiensis. | 
[From this point as far as p. 468 many observations on 
the relationship between ants and Membracidae are re- 
corded. These pages should be read in connexion with 
Section D, pp. 494-8. ] 
‘““T placed the larva in a tube with some of the Jassids 
[4 Nehela ornata], but it had eaten none by the following 
morning, Jan. 23. [thereupon introduced the top of a Triwm- 
fetta, bearing shelters containing ants [Pheidole rotundata, 
var., 11 6 min., 1 § maj.], and little Membracid larvae. The 
ants swarmed out and seized the Jassids and they ran all 
over the larva, one seizing it by an anal clasper exposed as 
it stretched across between two leaves. The larva did not 
feed but suspended itself for pupation and on Jan. 24 
house-ants of the same species, P. rotundata, var. [26 % 
min., 1 § maj.] came in but did not seem to want to molest 
it though they ran all over it.’ The larva subsequently 
died. 
“The second larva, 621 B, was found in the forest near 
Oni, on Jan. 23 in a shelter on Triumfetta containing the 
ants, Pheidole aurivillia kasaiensis [21 9] and Membracid 
larvae [13 of various stages]. I saw this Lycaenid larva 
feeding on a large larva of the Membracid type though I 
did not actually witness the attack. The caterpillar ate 
the body and then part of the head, but was unable to 
finish its meal, for a tiny ant, which had been dragging 
persistently at the remaining morsel, managed to get it 
away. 
“On Jan. 24 I admitted the small black house-ants, 
P. rotundata, and I am under the impression that their 
attitude to the caterpillar was distinctly hostile. 
“The larva duly pupated and on pulling away the leaves 
of the Triumfetta so as to break down the ant-shelter I 
