Relationship between certain West African Insects. 465 
An ant-shelter on T'riwmfetta often contains, in addition 
to immature forms of Gargara, young Membracidae of 
several other species. The precise determination of these 
has not been possible, for they have not yet been bred out, 
but, judging by their general characteristics, they probably 
belong to the genera Anchon and Beninia. One frequently 
finds Membracid imagines of the genera Anchon, Beninia 
or Gargara feeding in the open on a stem close to an ant- 
shelter and tended by ants from it, and though these 
shelters are usually constructed by a species of Phevdole, 
yet it is not uncommon to find them also built by the ants, 
Camponotus akwapimensis, var. poultoni, and containing 
the same Membracids. This latter ant was the only one 
taken in the following shelters, etc., found, unless otherwise 
described, on Triwmfetta in the forest near Oni Clearing, 
Jan. 27, 1912::— 
Shelter H. Highteen larval Membracids of various stages 
and at least 2 species, fragments of the shelter, 4 ants. 
Shelter F. Twenty-five larval Membracids of various 
stages and at least 2 species, 7 ants. 
Shelter G. Twenty-eight larval Membracids as above, 
4 ants. 
Shelter H. Twenty-two larval stages almost certainly 
of the Jassid Nehela ornata, 3 ants. 
From another shelter near Oni Clearing, also examined 
Jan. 27, but not noted as on Triumfetta, 1 mature 
Membracid, probably Beninia lamborni (p. 517). 
On Jan. 26, in the forest } mile E., on Triwmfetta, but 
not noted as from a shelter, 1 mature Membracid, evidently 
Benimia, sp., and probably B. lamborni, but in poor 
condition, with 1 ant. 
On Feb. 26, on a stem in the forest } mile E., 21 mature 
Nehela ornata, 2 larvae probably of the same species, 
8 ants & min., varying much in size. 
A note dated Feb. 10, 1912, is as follows :— 
“T have another pupa of Megalopalpus from a larva 
which ate a species of Membracid closely allied to Gargara 
variegata, although it refused this species.” 
The chrysalis referred to cannot be that of No. 673, 
which did not pupate till Feb. 13. 
“No. 673, Feb. 26, 1912. This Megalopalpus took a 
rather different Membracid from other Lycaenids I have 
reared. I have bred one of its food-insects from larva 
to imago, and am now sending it labelled ‘ of especial 
