(| Te) 
at intervals during the preceding five years, and any one who 
glances through the list in the ‘Entomologist,’ and recollects our 
previous arrangement, will recognise at once the much more 
natural sequence of many of the species. Many of my younger 
hearers have naturally no recollection of the arrangement gene- 
rally adopted in our collections forty years ago, and even older 
entomologists may find a difficulty in again realising the “ stand- 
point” from which we have so long since departed. 
The few observations by Henry Doubleday which followed 
this list, suggesting that in some cases simple varieties had been 
wrongly elevated to the rank of species, implied also that there 
was much yet to be fully worked out as to the claims of many of 
our named specimens to rank as species. 
In the following year Henry Doubleday visited Paris, and a 
** Note on the Names of British Moths,” in the first volume of the 
‘ Zoologist,’ p. 832, shows at once how much need there was for 
intercommunication with Continental entomologists, if there was 
any wish on our part to come to some agreement with them as 
to the proper nomenclature of species. From that date a regular 
correspondence between Henry Doubleday and Achille Guenée 
was kept up for many years, and most of our older lepidopterists 
can remember how in those days specimens of any novelties were 
submitted in the first instance to Henry Doubleday, who, if 
unable to decide upon them at once, in due course transmitted 
them to Chateaudun to obtain the opinion of the more learned 
Achille Guenée himself. In this way there arose amongst us a 
general expectation of ‘‘ What does Guenée say ?”? when each 
successive addition to the British Fauna was submitted to him. 
It must be borne in mind that in those days the very com- 
monest species occurring in France or Germany, which had not 
already been detected in this country, were as utterly unknown 
to the mass of British lepidopterists as if they were inhabitants 
of another planet. In Paris the collections consisted not only of 
French species, but of those occurring in other parts of Europe, 
and hence a French lepidopterist soon obtained a far more 
general knowledge of his subject than the exclusively British 
collector, with his more limited horizon, could hope to attain. 
In this way it happened that insects which would have puzzled 
a whole conclave of British lepidopterists were perfectly familiar 
to Achille Guenée; they had perhaps been old friends of his 
