3072 



THE JOINTED ANIMALS 



with on the Continent. Indeed, so abundant is it at times that it causes 

 great injury to forest trees. In Prussia, Lithuania, and Poland, the havoc has 



PALE TUSSOCK MOTH, WITH ITS CATERPILLAR AND PUPA. 



(Natural size.) 



been particularly severe. In 1863 the moth appeared in countless thousands, 

 driven up as a regular insect storm by the south wind. Within a few hours the 

 moths spread over the whole country side, buildings were completely covered 



BROWN-TAIL MOTH. 1. Male; 2. Female laying eggs ; 3. Larvse ; 4. Pupa; 5. Antennae of male ; 6. Wing scales 

 7. GOLD-TAIL MOTH (Porthesia auriflua) larvae ; 8. Separate plumose hairs ; 9. Segments of larvae. (5, 6, 8, 9, 

 enlarged. ) 



by them, and the very surf of the lake assumed a more snowy whiteness, due to the 

 color of the hosts of moths drowned in the waters. The woods seemed as 

 though visited by a violent snowstorm, so thickly were the insects massed in the 



