66 



MAINE AGRICULTURAL EXPERIMENT STATION. I916. 



egg punctures after the eggs hatch are still visible but less 

 conspicuous and will be detected as minute white or transpar- 

 ent spots and in many cases the remnants of the egg shell can 

 be. seen as proof of the presence of the insects. The incubation 

 period for this time of year is about seven days as shown by 

 different sets of eggs one set laid Aug. 4th hatching Aug. nth. 

 In these the eyes became conspicuous on the fourth day after 

 deposition. 



Fig. 2. Cicadula sexnotata. a, 1st; b, 2nd; c, 3rd; d, 4th; e, 5th 

 in stars of nymph. /, tarsus of a much enlarged, a, b, c, drawn to larger 

 scale than d, e. (Original). 



