206 
Psyche 
[December 
growth already drooping. A list of plants attacked is herewith 
submitted. I suspect many more could be added to the list by 
other observers, but the following have come to my attention: 
Aster spp. (Wild Asters), Baptisia tinctoria (False indigo), 
Linaria canadensis, Myrica asplenifolia (Sweet Fern), Prunus 
serotina (Black Cherry), {Prunus cuneata) (Plum), Pteris 
auilina (Common Brake), Pyrus Malus (Apple), Quercus 
illcifolia (Scrub Oak) and Quercus rubra (Red Oak), Rohinia 
Pseudo-Acacia (Locust), Solidago spp. (Goldenrod), Vaccinium 
spp. (Blueberry and huckleberry). Viburnum cassinoides, Vitis 
sp. (Grape). 
Quercus ilicifolia (scrub-oak) is the favorite host for ovi- 
position in every case, but lack of room on the oaks, and lack 
of oaks have driven the females to laying in practically any woody 
plant available. 
One of the interesting points in this season’s occurrence of the 
Cicada, is the uneven emergence through the whole brood; 
often sections of the brood but a few miles distant from one 
another emerging at different times. Another interesting feature 
is the ‘‘patchy” occurrence throughout the area of infestation. 
Some places are heavily infested and others within the suspected 
area are practically free from the insect, although the same 
host plants and the same soil conditions exist in both cases. 
The digging of the Cape Cod Canal has disrupted part of the 
brood, as no Cicadas could be found within 100-500 feet of the 
canal banks. 
About July 1st dead Cicadas could be picked up frequenth^ 
in the infested area and by July 11th, dead and dying Cicadas 
could be found in abundance. By the middle of July very few 
living specimens could be found in Bourne, but the section of 
the brood around Great Herring Pond was still in full operation. 
