REPORT OF THE STATE ENTOMOLOGIST I917 33 
APPLE AND THORN SKELETONIZER 
Hemerophila pariana Clerck 
Another introduced apple insect has become well established in 
Westchester and Rockland counties, the center of the infestation 

Fig. 1 Apple and thorn skeleton- Fig. 2 Apple and thorn skele- 
izer, characteristic work on partly tonizer, nearly skeletonized apple 
eaten leaf. (Author’s illustration) leaf showing the somewhat char- 
acteristic folding over or curling of 
the edges. (Author’s illustration) 
being near Irvington and Nyack, respectively. It isasmall European 
moth which we have termed the apple and thorn skeletonizer. It 
is classed as one of the apple insects of minor importance in Europe 
though this may not necessarily prove to be the case in America, 
