118 
* 
I am not able myself to offer any trustworthy opinion on this point 
of the cause of infestation of the Larch, but no other cause suggests 
itself. Dr. Somerville, having made both forestry and the Coleoptera 
his special study, has excellent knowledge of the subject in all its 
bearing, and has secured to us a valuable as well as interesting 
observation, in his careful notes of record of presence of the H. 
piniperda in Larix europcea in the South of Scotland. 
Fox-coloured Pine Sawfly. Lophyrus rufus , Klug. 
Lophyeus eufus.‘ 
Fox-coloured Pine Sawfiies, 1, male; 2, female, after Prof. Westwood; caterpillar 
after Dr. Hartig, all muck magnified. Nat. size given in descriptions.* 
On the 10th of June in the past season, Mr. W. Clark, writing from 
Stronechreggan, Fort William, N. B., forwarded me specimens of 
caterpillars as samples of an infestation which was doing much harm 
to the leafage of young Scotch Fir plantations, over a large area under 
his management at Conaglen, Ardgour, Argyleshire. On examination 
these proved to be Sawfly caterpillars, not, however, of the Lophyrus 
pini , the “ Common Pine Sawfly ” (only too well known for the severe 
injury often caused by its caterpillars to the leafage and young shoots 
in Scotch Fir plantations), but of a less frequently observed kind, the 
Lophyrus rufus, or “Fox-coloured Pine Sawfly,’ 5 so called from the 
reddish colour of the females. 
The above named two kinds of caterpillars are very similar in their 
* The above figures of the male and female Sawfiies are copied from the very 
beautiful figures by Prof. Westwood, given on plate xxxv, vol. 7 of ‘Ulus, of British 
Entomology,’ by J. F. Stephens. The caterpillar is from plate iv of ‘ Die Blatt- 
vvespen und Holzwespen,’ by Dr. Th. Hartig. 
# 
