4 



REPORT ON INJURIOUS INSECTS FOR IQoG. 



FIG. 8. i. Female butterfly. 2. Larva. 

 3. Pupa. 



THE SMALL WHITE 

 CABBAGE BUTTERFLY 

 (Pieris rapae, Linn.) Nu- 

 merous examples have been 

 received of the larvae and 

 pupae of this species, the 

 latter especially from local 

 market gardeners, nursery- 

 men, and amateur garden- 

 ers. 



ORCHIDS INJURED BY MILLIPEDES. A Worcester correspondent 

 forwarded in December last a number of Orchid roots seriously dam- 

 aged by two millipedes Polydesnms coinplanatus, Linn., and Blani- 

 ulus guttulatus, Bosc. 



The following method has been adopted by a Warwick correspon- 

 dent with splendid results : Dig out in flower beds a hole sufficiently 

 large to contain the fist and wrist, and fill with bran (bran saturated 

 with beer was thought not to give such good results), and cover with 

 a flower pot. After two ,or three days pour on to the bran boiling 

 water. The contents of two such holes were carefully counted one 

 contained 2,448 dead millipedes, and the other 1,793. I n both cases 

 there were probably two or three hundred left behind. 



PLUM BARK BEETLE (Scolytus rugulosus, Ratze.). A Warwickshire 

 fruit-grower forwarded early in the year numerous examples of this 

 beetle from a Plum tree in his orchard. As is invariably the case, the 

 tree was in a very poor condition, and was destroyed by burning in 

 the spring. 



FIG. 9. i. Beetle magnified, line showing natural length. 2. Larva, 

 natural size, and much magnified. 3. Piece of apple branch, showing 

 holes in bark made by the beetle, and channels made in the wood. 



