32 
guished naturalist. The specimens were exhibited at a meet- 
ing of the Entomological Society of London, and the details 
of Mr. Marshall's investigation are published in the Proceed- 
ings (1903, p. xxxii). Four specimens of three species of the 
same genus captured by Mr. Marshall, four pupae of Precis 
sesanius, and a specimen of P. archesia, wet-phase, kept for 
the whole pupal period in a dry atmosphere, were also pre- 
sented. The latter is one out of a long series of experiments 
Mr. Marshall has made and is making in the attempt to ascer- 
tain the physiological causes of this remarkable change. 
The following valuable material has also been presented 
by Mr. Marshall :— 
Three butterflies showing injuries probably caused by the 
attacks of birds. One of these is the rare and beautiful 
Lycaenid mimic Wimacraea marshalli. Its model Limnas 
chrysippus, captured on the same day, was also presented. 
Another is a specimen of Papilio demodocus, in which both 
hind wings have been shorn by the beak of a bird almost as 
cleanly as if with a pair of scissors. 
A set of 6 Asilid flies and their prey, the latter of the 
most varied description, including a male Asilid (being 
devoured by the female of the same species), a moth, beetles, 
and Aculeate Hymenoptera. 
Seventy-seven Hymenoptera, including some very fine 
Aculeata, 20 Coleoptera, 10 Hemiptera, 4 Homoptera, 
1 Neuropteron, and 10 Orthoptera. 
All the above-named insects are from Salisbury, Mashona- 
land, 5,000 ft. (1902-3). Mr. Marshall also presented 5 Cetoniid 
beetles, Pseudoclinteria infuscata, captured by him at Beira 
(Nov. 1902). 
Just at the close of the year a most interesting consign- 
ment arrived from Mr. Marshall, affording the best possible 
evidence of the food of insect-eating animals. In twenty 
cases Mr. Marshall carefully investigated the fragments of 
insects found in the stomachs of birds or contained in 
the faeces of lizards and mammals. The species were, as 
far as possible, determined, although in many cases the frag- 
