192 



ELEMENTARY ENTOMOLOGY 



(Zeuzera pyrina), which is seriously damaging the shade trees 

 of Eastern cities to which it has spread. It is white, spotted with 

 numerous black spots. 



The clear-winged moths (Sesiidae). The caterpillars of the clear- 

 winged moths also bore into the trunks and roots of trees and the 

 stalks of smaller plants. The wings of the moths are quite narrow 

 and are free from scales except along the margins and over the 



FIG. 300. Peach-tree-borer moths. (Natural size) 

 The upper one and one at right are females, the other two are males. (After Slingerland) 



veins, leaving them quite transparent. The antennae are long, and 

 the body is long and slender, the abdomen being commonly banded 

 with yellow and terminating in a tuft of scales. Unlike most moths 

 they are found frequenting flowers in the daytime, and may very 

 readily be mistaken for wasps, which they seem to mimic. The 

 best-known example of the family is the peach-tree-borer (Sanni- 

 noidea exitiosa), whose white larvae bore into the lower trunks and 

 roots, being probably the worst insect enemy of the peach tree. 

 The males are black with narrow yellow bands on the abdomen, 



