NOTES, CAPTURES, ETC. 293 
ganglia, and all the abdominal ganglia of the larva. The first 
always coalesces with the sub-cesophagian ganglion. (Acanthia, 
Nepa, Notonecta, &c.) 
12. My researches on the nervous system of the Lepidoptera 
show that these insects have sometimes two, sometimes three, 
thoracic ganglia; but that they have always only four abdominal 
ganglia, as stated by Léon Dufour. In many recent zoological 
manuals is found the erroneous assertion that Lepidoptera have 
five abdominal ganglia. According to my researches upon 118 
species three thoracic ganglia are found in Hepialus only,-— 
a genus containing species many of whose organs resemble those 
of a chrysalis rather than those of an adult insect. 
ENTOMOLOGICAL NOTES, CAPTURES, &c. 
LEPIDOPTERA AT YARMOUTH AND Lowestorr.—During a 
fortnight’s stay in the neighbourhood of Yarmouth, from August 
17th to 30th, I had plenty of opportunity of remarking two 
things—the continued lateness of the season, and the great 
abundance of Plusia gamma. This handsome and ubiquitous 
insect was on the wing in great numbers: on the sand denes, 
where the dandelion and sea-holly formed the chief attraction to 
its insatiable appetite for sweets, there it was, and in nearly 
every lane in Suffolk through which I walked. I suppose everyone 
must have noticed the way the imagines have varied in ground 
colour this season. I have both bred and seen at large specimens 
nearly as rosy as Plusia V-awreum; and the last imago which 
emerged from the pupa in my cage was shot with bronzy green. 
Iam happy to be able to add that neither the gardens which I 
passed nor the hedgerow plants appeared to have sutfered seriously 
from the depredations of the larve, but, on the contrary, looked 
fresher and greener than I have ever seen them before at this 
time of year, while flowers of all sorts were out in abundance; 
dock, plantain, and burdock, were the only weeds which showed 
many traces of their voracious appetites. As several notes have 
lately appeared in the pages of the ‘Entomologist,’ which seem 
to point to a scarcity of other species of Lepidoptera, I venture to 
append a list of those I observed, from which it will be seen that 
the lateness of the season continued apparent in Suffolk up to the 
