1892. ] Supposed New Icerya. 51 
many other plants, and to have infested the gardens of 
Alexandria for the past four years. 
3. The Montserrat Icerya: Icerya Montserratensis. This last 
species is not found on the leaves of the lime according 
to Riley—Howard, but on another tree. 
4, Palmer’s Icerya: Icerya Palmert. Found on the leaves of 
the Muscat of Alexandria grape-vine in Mexico, and 
lastly, I exhibit a very singular coccid, found in the 
Cape Peninsula, which if not a true Jcerya, is very 
closely allied. 
This coceus, which I'll call, for the present, Icerya Mesembryan- 
themi, is found on the Hottentot fig M. edule. 
Unlike the eggs and young of the Icerya Purchast which are of 
a salmon colour, those of Mesembryanthemi are green; the larvae 
however seem to be very active and have not the little setae 
on the last articulation of the antennae, which are so distinguishing 
a feature in those of the L. Purchasi. I have not been able to get 
the male as yet ; when Ido so,I shall be able to decide without. 
doubt whether the insect I exhibit to-night is a true Jcerya or an 
extremely close ally. 
Of course an agglomeration of insects of that kind cannot fail to 
attract enemies, and I have already found two very minute Hymenop- 
terous insects using this Icerya as a fit place for depositing their 
eggs. Some of the round punctures on the back of some females, 
show that the young parasites have found their means of exit, of 
course with a result fatal to their host, but beneficial to thec7 kind. 
