387 
Annual Report for 1913 of the Zoologist. 
Byturus tomentosus appears about the end of May on the 
unopened raspberry buds. It is about £ in. in length and 
of a yellow and brown colour, being in fact brown with a * 
down of greyish-yellow hairs which are often more or less 
rubbed off. 
They pierce the buds and prevent many of them from 
developing at all. Later they attack open blossoms and feed 
upon the stamens and petals. Much harm is done in these 
early stages, but they are also the parents of the maggots so 
4 
F-IO. 3. — The Easpberry Beetle, Byturus tomentosus. 
1, the beetle ; 2, the larva ; 3, the newly-formecl pupa ; 4, the pupa in its cavity 
in the soil, all enlarged, the natural size indicated by perpendicular lines. 
often occurring in the raspberry fruit. They utilise those 
blossoms which have escaped destruction to lay their eggs in, 
and these eggs give rise to maggots which feed on the ripening 
fruit, attaining finally a length of rather more than a quarter 
of an inch. They are yellowish-white with fairly distinct 
brownish plates on the back of the segments, and with two 
brown curved horns at the tail. 
When the crop is gathered it is “ maggoty,” and greatly 
depreciated in value, but by this time many of the grubs have 
