14 First Report on Economic Zoology. 



but wliich can easily be told by having a deep reddisli-brown spot on 

 each side of the first thoracic segment ; the legs are also longer than 

 in the Cockchafer grub, and the whole surface is clothed with 

 transverse rows of reddish-brown hairs. The larvte may also be 

 found amongst rotten and rotting wood, but mainly in rich soil ; their 

 food consists chiefly of the roots of various plants and probably of 

 decaying vegetable matter as well. When full grown they attain the 

 length of an inch and a half, taking from two to three years to reach 

 maturity. The pupal stage takes place in an earthen cell over an 

 inch in length formed deep in the ground ; the outer part of the cell is 

 rough, the inner surface smooth. The pupa is of an ochre colour. 



A B 



Fig. 2. 



THE GREEN ROSE CHAFER (Cctonia aurato). 



A, Imago ; B, Laiva. 



The grubs apparently pupate in the summer, and the beetles appear 

 from these in the following May and June. Canon Fowler notes that 

 the little larvrc and perfect insects are often found in ants' nests. 



Eemedies. 



By far the most successful way to cope with these large sluggish 

 beetles is by " hand-picking." This should be done during dull 

 weather when they are very quiet, as on warm days they become 

 more active and fly about. 



Heaps of leaf mould, cucumber beds, and heaps of decaying wood 

 should be examined when turned over or moved and the grubs hand- 

 picked. Old tree stumps frequently harbour them and should thus 

 be grubbed up in the winter and burnt. In garden and field 

 cultivation poultry do much good if turned on to the land when it is 

 being broken up, for they greedily devour these larvae as well as those 

 of the Cockchafer. 



" Turf-traps," i.e. heaps of rotting turf, may be left here and 



