president’s address. 
249 
like that of Leucania phragmitidis, and at the same time as that 
species.* It was characteristic of Mr. Bond’s reticence that he 
should not only have failed to record his capture, or to describe 
a larva then, and still (I believe) unknown, but should have kept 
it so quiet that the occurrence of the insect at Wicken was 
unsuspected. What was far more remarkable was that so able 
a collector as Mr. Brown should have failed to discover it at 
Wicken, where he constantly worked ; passing it over, I suppose, 
as T. fulva , which it resembles in si/.e and colour, but from which 
it is abundantly distinct, and even differs to some extent in habit. 
It was a long time, however, before he could be convinced that 
my insect was lielmanni at all. Curiously enough, in the 
‘Entomologist’ for 1878, a record was made of its capture at 
Monkswood as an altogether new locality ; so completely has the 
new habitat obliterated all recollection of the old. In fact, the 
history of this insect affords an excellent illustration of the loss to 
science caused by failure to record captures and observations on 
the part of those fully competent to do so. T. heJmanni has been 
found to occur at Whittlesford, as well as at Monkswood and 
Wicken ; and is, perhaps, the most widely distributed (over the 
district) of the “old fen” insects, though always strictly local. The 
specific points of difference from its common relative T. fulva 
are recorded elsewhere ; but it may be mentioned, that the broader 
wings, and somewhat different build of hehncinni, give it a softer 
and less dashing style of flight, so that it may be readily dis- 
tinguished on the wing, and seems to me, when alive, intermediate 
in appearance between T. fulva and Miana avcuosa. It is readily 
attracted both by sugar and light, coming to the latter attraction 
in fairly regular numbers throughout the night; whereas fulra puts 
in only a very straggling appearance until the small hours of the 
morning. 
I must now bring these rambling notes to a conclusion, and 
apologise for asking your attention so long to a subject which 
can, I fear, interest but a small section of the Society. 
* Possibly Bond made some mistake, as the moth occurs in at least one 
locality at a distance from any reed. 
S 2 
