XXXi 
were of extreme beauty, and some belonged to genera not known to occur in Europe. 
Mr. Stainton remarked that in addition to a specimen of the species which Zeller had 
described in 1847 as Dasycera imitatrix, from its extreme similarity to Dasycera 
Oliviella, there were two specimens from Amasia which seemed intermediate between 
D. imitatrix and D. Oliviella; and that when species came so extremely close 
together it was important to examine a long series, in order to ascertain the extent and 
limits of variation in each. 
Mr. F. Smith exhibited some galls found in July, at Deal, on the shoots of the 
elm, and which when fresh were of an apple-green colour, with the side exposed to the 
sun of a rosy hue, so that they had a perfectly fruit-like appearance: they were of con- 
siderable size, hollow, and coutained numbers of Aphides, probably a couple of hundred 
in a single gall. He had sent specimens to Mr. Armistead, who believed the gall to 
be undescribed. 
Mr. M‘Lachlan found the same gall in the summer near Kingston-on-Thames, not 
on the Ulmus campestris, but.on what he believed was known as the Dutch cork elm; 
they contained Aphides, and were full of water. 
The President remembered to have seen’ very similar galls near Naples, he 
believed on elm. 
Mr. Pascoe exhibited two females of a Coccus, the case or covering of which 
resembled a small shell, and might well be mistaken for a Patella; they were from 
Port Lincoln, South Australia, and were said to have been found “on the under side 
of Eucalyptus leaves.” 
The President exhibited specimens and magnified drawings of a new Myriapod, 
about one twenty-fifth of an inch in length, and remarkable not only for its small size 
but for the small number of legs, having only nine pairs: he found it not unfrequently 
in his kitechen-garden, among decaying leaves and in other similar situations. It 
might at first sight be taken for a larva, but he had watched many specimens for 
nearly two months, and during that time they had not undergone any further change 
or exhibited signs of further development; moreover, some of the males contaiued 
spermatozoa, which showed that they were mature. The first pair of legs was 
attached to the segment immediately succeeding the head, the other eight pairs to the 
four following segments; the youngest specimens were provided with only three pairs 
of legs, there was no eight-legged stage, but at a single moult they changed from 
three pairs to five pairs, and afterwards tu six, seven, eight and nine, acquiring a new 
pair at each successive moult. -The animal was white in colour, active in habit, 
intelligent in appearance, and frequently vccupied itself in cleaning its feet with its 
mouth, after the manner of a fly or cat. Iv many other points it differed from all 
centipedes, of which the President believed it to constitute a new type; the Myriapods 
were separated from other Arthropods by so broad a division that any form which 
even tended to bridge over the gap was of very great interest: he proposed to give a 
history of the transformations of this novelty, and to describe it under the generic 
. name of Pauropus, in allusion to the paucity of feet. 
Prof. Westwood remarked that a certain identity of size appeared to run through 
particular groups, and this had hitherto seemed to be the case with the Myriapoda as 
with other Orders; the general run of Centipedes ranged (say) from ten inches down 
to an inch or an inch and a half; it was therefore very remarkable to meet with one of 
the almost microscopic dimensions of that exhibited (though the genus Pollyxinus 
i Ds 13, S67. 
