346 Proceedings of Boyal Society of Edinburgh. [sess. 
These hibernating beetles were in November thirteen to sixteen 
months old, as imagos. 
The further fate of eleven with which I continued to experiment 
on their reappearance in 1898 after hibernation is : 
No. of 
Pine. 
No. of 
Beetles. 
How long on Pine. 
Proof of Egg- 
laying. 
Remarks. 
56 
11 
Mar. 23-Apr. 20, 1898 
New brood issued 
Lost one on April 20. 
59 
10 
Apr. 20-May 10, ,, 
Larvae on dissection 
61 
10 
May 10-May 27, ,, 
Lost one. 
63 
9 
May 27- June 29, ,, 
New brood issued 
65 
9 
June29-July21, ,, 
Larvae on dissection 
Before examination of 
this pine on July 21, it 
had died. Of the nine 
beetles only four were 
alive, two of which 
were males. 
67 
4 
July 26-Aug.31, „ 
Larvae on dissection 
In August a gale of wind tore to shreds the muslin surrounding the 
pine, so that on 31st August 1896 only one notatus could be found. 
Up to this time these beetles varied in age from twenty-two to 
twenty-five months, and during this period they had twice 
hibernated. 
Pissodes piniphilus (Hbst.). 
Pissodes piniphilus , the pine pole weevil, measures less than a 
quarter of an inch in size, and in colour is rusty brown, powdered 
all over with whitish scales. The posterior corners of the pro- 
thorax are rounded, being more round than in any other of the 
Pissodes species : Scutellum, whitish. In place of the ordinary 
transverse band behind the middle of the elytra there are two 
large rusty-yellow spots, one on each side, between the suture and 
the outside edge. These spots are very characteristic, and, along 
with the absence of the band at the front of the elytra (character- 
istic of the other Pissodes), are of great service in determina- 
tion. 
Distribution . — This beetle is widely spread over Europe, from 
France in the south to Sweden in the north. It is said by 
Fowler to be rare in Britain. Mention is made of it as found at 
Sunderland in imported timber, and doubtless in this way it has or 
will spread. 
