REPORT OF STATE ENTOMOLOGIST, 1898 239 
« 
abundant secretion of waxy threads renders it very promnent. The 
photograph of the adult colony represented in fig. 18a was taken July r. 
About this time the young (fig. 19) appear in large numbers and found 
colonies near the tips of the smaller branches. Fig: 184, of a young 
colony, is from a photograph taken July 16. ‘This insect occurs not only 
on species of alder but also attacks birch. It has an enemy in the little 
orange butterfly, Feniseca targuinius Fabr., the larva of which lives in the 
colonies and devours the aphids. 



Fig. 18 Adult females and young of PEMPHIGUS TESSELLATUS (original). 
Pulvinaria innumerabilis Rativ. This destructive scale insect is 
being constantly brought to notice here and there in the state, though 
during the past few years it appears to have been less destructive 
than usual. On July 5 this scale was reported as injuring the elms 
seriously at Sandy Hill, N. Y., and affecting the maples to a less extent. 
At that time the young had not left the protecting filaments of the 
mother, though they were numerous in the cottony secretion. A few 
days later twigs of maple were received from Baldwin, L. IL., their con- 
