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AN INTRODUCTION TO ENTOMOLOGY. 



The Tree-crickets. Our common Tree-crickets belong to the 

 genus CEctinthits. The most abundant species is the Snowy Tree- 

 t, (Ec&nthus nlveus (Fig. 109). This is a delicate greenish- 

 white insect. The male is represented 

 in the figure. The closely-folded wings 

 can be seen through the transparent 

 tegmina. The wings vary greatly in 

 length ; sometimes they are longer 

 than the tegmina, and sometimes not 

 as long. In the females the tegmina 

 are wrapped closely about the body, 



Fie. 109. (Ecanthus niveus, male. 



FIG. no. Stem of blackberry with eggs of (Ecantku 

 niveus. c, egg enlarged ; </, ornamentation of egg 

 (From Riley.) 



making the insect much narrower than its mate. The female 

 lays her eggs in a longitudinal series in the twigs or canes of various 

 plants (Fig. no). She selects the raspberry more often than any 

 other plant ; and as that portion of the cane beyond the incisions 

 made for the eggs usually dies, it often happens that these crickets 

 materially injure the plants. In such cases the dead canes should 

 cut out and burned early in the spring before the eggs hatch. 



