INSECTS AT WORK AND PLAY. 133 



Caterham Valley. The caterpillars formed their 

 tough, boat-shaped, yellowish cocoons everywhere 

 — on garden palings, doors, the glass of windows, 

 inside and out, and even on zinc pails in daily 

 use. This year things are entirely reversed, and 

 both this diurnal moth and the common meadow 

 brown butterfly are suffering from a parasite 

 which is somewhat similar in shape to a dog tick, 

 scarlet in colour, about half the size of a pin's 

 head, and able to run about freely. 



Although the brimstone moth is said to be 

 common, I have ver}^ seldom met with it either by 

 day or by night. The specimen figured herewith 



SWALLOW-TAILED MOTH. 



