32 
Ml* T. Eiown of Cambridge, are about all that was generally 
ivnowii of this species as British. In 1872, when I first tried an 
a lacting lamp in the Norfolk Bens, I had the luck to secure a 
Nonagria cannm at the south end of Barton Broad, where there 
are extensive beds of Ty 2 }lia latifolia. 
Since that time I have devoted some nights every season to 
wor ang this spot, and have managed to catch about two N. eanneti 
a year, among large numbers of i7. tgplun, which is abundant there. 
ast season I tried a piece of fen at the north end of the broad 
or rather between Barton and Stalham Broads, where I had 
noticed the food plant, and here I was fortunate enough to take 
a fine series of N. cannee, the commoner species (N. tijphce ) beiim 
wholly absent. These specimens show a considerable variation 
and a strong tendency to melanism, Avhich I have never observed 
in those from the Continent. 
The habit of the S on the wing is somewhat different from 
mther iV^. tijphce or N. hrevilinea, being much less wild, and heavier 
m flight. It IS very powerfully attracted by light, and I have never 
tailed to net a specimen once brought within the magic circle 
+1 ^ am 2 X ihe ^ is larer, and has a less dashing flight than 
the cf, but IS less attracted by the light ; indeed, I have ere now 
been tantalized by the sight of one flying steadily about over a 
piece of bog, where it was wholly impossible to walk, which 
refused entirely to be drawn to destruction, even by the rays 
of a magnesium lamp. 
I should mention that hitherto I have been unable to secure 
e arva or pupa, all that I could find in the stems of 
. latifolia proving to be the common N. typhee. Treitsclike, in 
IS wor ' on European Lepidoptera, gives as a distinction between 
the two species m the pupa stage, that N. cannee is found in the 
s ems of the Typha with the head upivards, N. typhee with the 
head down. Ihe latter statement I can corroborate 
IlYDEinLA palustris. This hitherto extreme rarity has lately 
been taken at icken Een by means of liglit, upwards of twenty 
specimens in all having been secured. About seven years a-o it 
was so rare, that one taken by Mr. Barrett on a lamp-polt in 
the Newmarket Eoad was the fourth on record. Last season 
three or four specimens are said to have been taken at Ilornim-- 
by Mr. Eedle, which, however, I have learnt only by report! 
