( xxix ) 
hibition an example of Strangalia revestita, taken on a flowor- 
head near Andover in 1909. 
Mimetic Lepidoptera. from the Cameroons. —Mr. W. 
F. H. Kosenberg exhibited (a) a “ combination ” consisting 
of a i^ympbaline butterfly, Euphaedra ruspina, and three 
species of moths belonging to as many different families, 
viz. Phaegorista similis (Ilypsidae), Xanthospilopteryx ptoggei 
{Agaristidae), and a Geometer, Aletis helcita. These insects 
bear a close superficial resemblance to each other in colour and 
pattern of markings, the wings being tawny-orange, with 
black marginal borders and white apical and marginal 
spots : (b) a pair of the Nymphaline butterfly, Ilarma theodota, 
a strikingly dimorphic species, the female of which bears some 
resemblance, especially on the upper side of the hindwings, to 
a moth, Nyctemera hesperia, of the family Lymantriadae. The 
specimens were taken in the same locality and at the same 
time of year •, and (c) five species of Planema (family Acraeidae) 
and an equal number of species of Pseudacraea (family Nym- 
pkalidae) mimicking them, the supei’Acial resemblance being 
very close in each case. Special attention was called to the 
specimens of Planema plagioscia, the males of which, with 
tawny bands on the forewings, are mimicked by the males of 
Pseudacraea hohleyi, whilst the females of the Planema, with 
white bands are mimicked by the females of the same species 
of Pseudacraea. With these specimens were exhibited several 
Elymnias, and specimens of Papilio zenohia, cynorta, and 
another species of the same group, all mimicking certain species 
of the Planema. The whole of these specimens were taken in 
the same months and place. 
Mr. J. W. Tutt considered the exhibition made by Mr. 
Kosenberg one of the most interesting that had been pre¬ 
sented at any meeting of the Society. Here we had for 
certain species belonging to widely dilferent groups of Lepi- 
doptera—butterflies and moths—occurring at the same time 
and in the same place with close resemblances on both 
upper- and under-sides. It occurred to him that the upper- 
side resemblance would be of value only during flight or 
movement, and the under-side only during rest. The usual 
habits of butterflies on the one hand, and Geometrids and 
