Mustard Beetles. 
217 
opportunity of observing more than its presence. The three 
other kinds above noted are seriously destructive. 
Fig. 4, — Turnip-seed Weevil (Ceutorhynchus assimilis). 
1 and 2, weevil, natural size and magnified ; 3 and 4, maggots, magnified ; 5, turnip-seed pod 
pierced by maggot ; 6, cocoon ; 7 and 8, pupa, natural size and magnified. 
The reports forwarded gave, in addition to the direct replies 
to the enquiries in the circulars, observations from various 
localities, accompanied by plentiful supplies of specimens of 
the above-mentioned insects, and some other kinds less fre- 
quently met with, also noticed on mustard ; but as these reports 
run to greater length than space will permit, I can only at 
present offer an abstract of the main points of the information 
received, together with a list of the contributors.* 
The following abstracts of information are classed under the 
headings of the enquiries in the circulars, to which they are 
replies : — 
Where Attack comes feom. 
1. Where do the beetles which start the spring attack shelter 
in the winter ? As — down old mustard-straw ; in straw used 
for rough thatch, &c. ; down pipes of reeds ; or in rubbish 
generally ? 
The beetles are stated to lie dormant during the winter in 
pipes or reeds ; in the ends of old mustard-stocks left on the 
land ; and likewise in the root-ends of mustard-stubble, which 
is left on the land when the crop is cleared, and they may be 
found lying on the land all the following winter in the young 
wheat. " As many as twelve beetles have been found in one 
of these stubble-roots ;" they shelter during winter in mustard- 
stacks and temporary walls formed of mustard or other straw. 
They also winter in crevices of old wood ; between the bark 
and the wood of old decayed trees ; in cracks of gates, of gate- 
* Tho notes sent will be published in extenso aa a separate paper in my 
own ' Annual Report on Injurious Insects,' now preparing. — E. A. O. 
