LIPARIS MONACHA. 



311 



The pupa is at first greenish, later dark brown, with a bronze 

 lustre, and covered with shaggy hairs. 



b. Life-history. 



The moth appears in July and at the beginning of August, 

 and may exceptionally be found till the end of September. 



Fig. 157. Liparis monacha, L. 

 a Imago ( ? ). b Eggs (enlarged), c Caterpillar, d Pupa. 



Both sexes usually sit at daytime on the stems at a moderate 

 height from the ground. 



In the month of August the ? lays about 150 eggs of a 

 reddish-bronze colour in groups of from 5 to 50 in bark-cracks, 

 or among the moss and lichen of large poles and tree stems, 

 of Scots pine or spruce, usually at 10 feet from the ground. 

 When the insect swarms, spruce boles are covered with eggs 



