LIFE HISTORIES OF FROGHOPPERS OF MAINE. 28l 



Fig. 41. Aphrophora parallela a, b, c, d, e, ist, 2nd, 3rd, 4th, 5th 

 instars. All enlarged. (Original.) 



The earliest nymph collected in 1914 was a partly grown one 

 secured by Mr. Newman June I9th, evidently representing the 

 next to the last instar as all the later and larger nymphs showed 

 a different color pattern. The date of egg hatching is there- 

 fere uncertain, but is probably during the last of May or early 

 in June. The nymphal growth must be fairly rapid as indi- 

 viduals of the last instar occurred in early July and the first 

 adults were observed on the morning of July I5th, one male 

 being caught and another observed. At the same time one of 

 the earlier instar forms was observed but at this time nearly alt 

 were in the preimago stage. 



For the summer of 1916 which was late and the insects prob- 

 ably delayed in development, specimens were secured June I4th, 



