I 3 S — 
8 and 9 feet, but remained stunted the growth being straggling, 
and irregular. 
» The female Beetle lays its eggs in clusters, typically on the 
under side of the leaves. The number of eggs in a cluster varies 
14 to 16 being an average. The eggs are roundish and orange 
yellow. 
The larva has a black head and prothorax, and the anal segment 
is also black. The yellow ground colour is obscured by black lines 
and dots,and there are hair-bearing tubercles. The larva progresses 
by its 6 legs and a process from the hind segment. 
The pupa is light yellow. 
In Dr. Stewart Mac Dougall’s experiments the adult Beetle 
lived for 2 months. Eggs, young larvæ, full grown larvæ, pupæ of 
the same generation can be found at the same moment. 
The eggs hatched in 9 days — longer time being taken in less 
favorable environment — ; the larval stage lasted 27 days and over; 
the pupal stage lasted 9 days. Hibernation is as adult. 
MacDougalt obtained Beetles active on the plants from May 
to the end of August; eggs from May to August; pupæ in July 
and August. 
Preventive and remedial measures : 
i° Trapping the adults in their winter-quarters; 
2 0 Hooding the Osier beds in winter; 
3 0 Shaking the Beetles off the plants in spring; 
4 0 Spraying against adult and larva with : 
a. Arsenate of lead ; 
b. Paris green; 
5 0 Spraying against the larva with an emulsion of soft soap and 
paraffin. 
M. A. F. Gillanders (Alnwick) fait la remarque : 
About 14 years ago I found a species of Galerucella on the 
foliage of Elms in Warwickshire ; considerable damage was done 
to the trees by the larvæ. 
M. R. S. Bagnall (Penshaw) suggested that Insects attacking 
plants in great numbers should always be systematically recorded, 
even though such plants be of little or no economic value. 
