INSECTS INJURIOUS TO CURRANT AND GOOSEBERRY 483 



beaks, and thus causing the spots mentioned. " As the nymphs 

 increase in size the spots are a little larger and more numerous, 

 until not only hundreds occur on a single leaf, but often nearly 

 all the parenchyma is taken from the leaf." The nymphs are 

 very active and dart from one side of. the leaf to the other when 

 disturbed. The adult bugs appear about the middle of June 

 and are active for a month or more, when they disappear. They 

 mate and the females commence to lay eggs about a week after 



FIG. 347. Currant leaf spotted by the nymphs of the four-lined leaf-bug. 



(After Slingerland.) 



they first appear. The female is furnished with a strong ovipositor 

 with which she inserts the eggs in slits cut lengthwise into the 

 stems of the plants extending nearly half way through the pith. 

 A half-dozen or more eggs are packed together in the small slit, 

 which may be one-eighth inch long. The individual egg is about 

 one-sixteenth inch long, light yellow, and shaped as in Fig. 346e', 

 with the upper third capped by a white, finely striated portion. 

 " With the growth of the surrounding tissue of the stem, the eggs 



