308 THE ZOOLOGIST. 
*Psylla peregrina, Forst. On mountain ash, Perth, August. 
,, costalis, Flor. On larch, Edinburgh, August. 
»  spartiophila, Férst. On broom, Plumstead, June. 
» simulans, Forst., and *P. pyricola, Farst. On pear trees, Perth 
and Roslyn, August. 
»  erategi, Forst. On pear trees, Roslyn, August. 
» Scotti, Liw. On fir trees, Addington Hills, October. 
»,  hippophaés, Férst. On Hippophaé rhamnoides, Folkestone, August. 
Trioza urtice, Linn., T. hemotodes, Forst., and T. albiventris, Forst. On 
fir trees, Addington Hills, October. 
»  Walkeri, Forst. On buckthorn, Dartford, October. 
Aphalara polygoni, Férst. On Rumew acetosella, Sevenoaks, July; and 
on fir trees, Addington Hills, October. 
In all sixteen species of Psyllide taken by him during the latter half of 
1876, whereof four (*) are new to Britain. Mr. Douglas called attention to 
the wide field the Psyllid@ offered for the discovery of new species and 
observation of economy, the variety in the latter being very great, some 
species rolling or deforming leaves, some exuding a waxy secretion, and 
others living free. The natural history of many species is quite unknown, 
and the rearing of any from the egg or larva to the perfect state was com- 
mended to the attention of entomologists, especially of those who have 
reared Lepidoptera, as being equally interesting with insects of that order, 
and furnishing an area for investigation as yet but little occupied. 
Mr. F. Grut exhibited a white downy nest from Jamaica, supposed to be 
produced by some insect. 
Mr. H. Goss exhibited a dark variety of Cleora glabraria. 
Mr. C. O. Waterhouse exhibited a new species of dragon-fly from Borneo, 
belonging to the genus Gynacantha, which he proposed to call G. plagiata. 
It differed from all its congeners, not only in its great size, but in the 
unusual colouring of the wings, which were hyaline, with the whole anterior 
border as far as the stigma broadly margined with pitchy brown, and with a 
large patch of the same colour, only darker, across each wing near the apex ; 
this patch on the hind wings extended a little along the posterior border. 
The total expanse of the wings was 6} inches; the length of the posterior 
wing, 3% inches. ‘The specimen was a female. 
The Secretary read a circular from Dr. Buchanan White, of Perth, asking 
entomologists to assist him with specimens of Hemiptera (especially exotic), 
as he was engaged in working out that order of insects. 
Dr. Sharp communicated a note on the classification of the Rhyncho- 
phorous series of Coleoptera. 
Mr. J. W. Slater communicated a paper, “On the Food of Gaily- 
coloured Caterpillars,” in which he attempted to show that brightly-coloured 
larve generally fed on plants which were poisonous. 
