224 



FOREST ENTOMOLOGY. 



the end of August, the males appearing in September. They then 

 fertilise the females, when the latter moult again for the third time. 

 Hibernation commences shortly afterwards, and the insects remain 

 dormant until the spring. Egg-laying takes place at the end of April 

 and throughout the early part of May. In all probability the periods 

 here set forth may vary slightly, according to the season." 



The male (fig. 213), copied from Newstead's Monograph, is described 

 as dusky reddish-crimson or blackish-crimson in colour, with black eyes : 



Fig. 213. Male of Pulvinaria. Species Fig. 212. Male and female scales o/Pulvinaria on flower- 

 found on flowering currant. ing currant, Ribes sanguineum (naftwaJ size). 



long, slender, and ten-jointed antenna?. Two very long caudal filaments 

 at posterior end. Length, including caudal filaments, 2 to 3 mm. 



Having in a general way referred to the characters and life-history 

 of the genus Lecanium, it may now be best to give the salient char- 

 acters of the arboreal species, according to Newstead. 



Genus Lecanium. 1 



Adult females, some low, convex, others hemispherical above, hollow 

 beneath at the period of parturition. 



1 Adapted from Newstead's British Coccidrc, vol. ii. 



