458 Mr. W. A. Lamborn on the 
with a wisp of wool. In some species the 11th segment 
is widened anteriorly opposite the mouth of the gland, 
and in some the opening is placed on a specially pigmented 
area. It is, however, possible, by careful examination, 
to detect the opening when there is no special pigmentation 
to indicate the site. In one case a pellet of excrement 
which accidentally fell wpon the back of a larva deprived 
of ants, became firmly glued to the gland-opening. The 
secretion of another larva, also deprived of ants, had in 
24 hours dried so as to form a little white crust over the 
orifice. Again, in a larva that had died, mould was 
growing at the orifice in about 12 hours, although not 
elsewhere. 
“The ants certainly get nothing from the two accessory 
tubercles, and are never even permitted to touch them 
[see pp. 488-9], so that the only explanation I can think of 
is that they produce scent which attracts to the neighbour- 
hood of the gland. There can be no doubt about the con- 
clusion that the tubercles of some Lycaenid larvae do 
actually attract ants and keep them in attendance.” 
We now proceed to the observations upon various species 
of Lycaeninae. 
7. Megalopalpus zymna, D. & H. 
The associated ant was Pheidole aurivillia vr. kasmensis. 
The larvae were sometimes attacked by Ph. rotundata, 
var. ‘These latter, in the house, were apparently sometimes 
hostile, sometimes peaceful. 
The larvae, as will be seen by the following notes, are 
carnivorous, and feed on a variety of Homoptera belonging 
to the families Jassidae and Membracidae, which are 
invariably ant-attended. 
I have not found that the ants derive any benefit from 
the presence of this larva, or that they are of service to 
it. There is, on the contrary, some evidence to show that 
their attitude to it is distinctly one of hostility, in con- 
nexion with which it is noteworthy that the larva is not 
of the smooth, soft onisciform type, characteristic of the 
Lycaeninae, but it is protected by a hard skin studded with 
tubercles which are surmounted by coarse sparse hairs. 
The larva is dark-brown, a tint approximating very 
closely to the colour of the débris out of which the ant- 
shelters are constructed, a strong contrast again to the colour 
of the Lycaenine vegetable feeders, of which the great 
