100 
THE ENTOMOLOGIST’S WEEKLY INTELLIGENCER. 
The remainder assumed the perfect state 
in about a fortnight. — C. G. Barrett, 
147, James Street, Dublin ; Dec. 14. 
EXCHANGE. 
Exchange. — I am desirous of clearing 
up my store boxes of the following in- 
sects, which I have for exchange; they 
are all in first-rate condition : — 2, 3 (male 
and female, of which I have three or four 
dozen), 10, 12, 18, 32, 36, 37, 54, 74, 607, 
613 and 762. I should be glad of any 
of the following, if in good condition and 
well-set .— 11, 20, 24, 38, 41 to 43, 50, 
51,59, 62, 66 to 71, 75,86, 88 to 98, 101 
to 103, 499 to 501, 504 to 508, 510, 511, 
514 to 522 ; any local species of the Noctu- 
ina, Bombycina, Pyralidina or Tortricina. 
Applicants will oblige by writing before 
sending boxes, and those gentlemen who 
do not hear from me before a week after 
the date of their letters may conclude 
that their offers are not accepted. — Hen ry 
R. Cox, 1 , Gloucester Villas, New Cross, 
S. E. ; Dec. 19. 
NATURAL HISTORY OF THE 
TINEINA. 
Depressaria Pallorella. 
The egg is no doubt deposited in 
spring by the liybernated female. .The 
larva feeds, in June and July, on Ccn- 
taurea Scabiosa and C. Jacea (in cap- 
tivity it will also eat Centaurea nigra ) ; 
it rolls up the leaves in a tubular form, 
just in the style of Depressaria Arenella 
and Liturella ; it is full fed about the 
middle of July, and then descends to 
the surface of the ground, where it con- 
structs a slight cocoon. Towards the end 
of August the perfect insect makes its 
appearance, and may be met with during 
the two following months, and occa- 
sionally in the spring after hyberna- 
tion. 
H. T. Stainton. 
GEOGRAPHICAL DISTRIBUTION. 
To the Editor of the • Intelligencer .' 
Sir, — I have been perusing with some 
interest the number of the ‘ Intelligencer ’ 
which contains Mr. Kirby’s paper on the 
“ Distribution of the Sphingina,” and I 
think he has done his work very well, 
and filled in the provinces far more 
completely than I should have thought 
possible: and now that the subject is 
fresh, and you have it so much in your 
power to direct any future efforts, I 
should be very glad to hear from you 
whether some improvement might not be 
contrived in one or two particulars. 
What has always appeared to me the 
weak point of these “ generalized” sum- 
maries is that all the authorities, good, 
bad or doubtful, stand upon the same 
footing ; so that in case of any one trying 
at some future occasion to obtain strict 
accuracy lie will have to go over all the 
work of collecting information afresh, 
whereas if it were seen which numerals 
(provinces) depend upon names such as 
Bond, Doubleday, &c, they might be 
considered as settled beyond challenge, 
which I think you will agree can hardly 
be the case with some of the provinces 
at present. 
A plan adopted by Gray, in the 
‘Freshwater and Land Shells’ (ed. 
1840), is that of a series of columns of 
the same number as the provinces, each 
headed at the top only with its numeral, 
and then another series of numerals 
