MAGICICADA SEPTEMDECIM LINN., BROOD XI, 
IN CONNECTICUT (HEMIPTERA: CICADIDAE) 
By J. A. Manter 
Storrs, Connecticut 
Brood xi of the periodical cicada made its scheduled 
appearance above ground during June 1954 in Connecticut. 
Only broods n and xi of this cicada occur in Connecticut. 
Brood xi in the past has been reported from scattered 
areas of Connecticut, Massachusetts, and Rhode Island but 
with only scanty records in recent years. Mr. George 
Dimmock observed the species in Suffield, Connecticut, in 
1869 but could not find any 51 years later while visiting 
the same locality. The Hartford Courant, June 6, 1903, 
printed a letter from a correspondent describing the reap- 
pearance of “locusts” in a forest where “vast numbers” 
were seen in 1886 near the town of Willington. He wrote 
“The forest seems alive with this wonderful insect.” A 
few local residents of the region recall hearing the cicadas 
in 1920, but entomologists apparently did not know of this 
colony and had no records of the Suffield colony since 1869. 
In Massachusetts and Rhode Island Brood xi has ap- 
parently disappeared forever. Dr. Dow writes in the 
Bulletin of the New England Museum of Natural History, 
April, 1937, “though Dr. C. W. Johnson (1920) visited 
the locality in Rhode Island from which it was reported 
by Prof. A. S. Packard in 1903, he failed to discover any 
evidence that the cicadas had emerged.” In the July num- 
ber of the Bulletin, Dr. Dow reported, “The three localities 
in Rhode Island which had been recorded by Professor 
Packard in 1903 were visited by Dr. C. H. Blake and the 
writer on June 12, 1937. We failed to hear any cicadas 
or find any trace of them, and were likewise disappointed 
on the following day, in Suffield, Connecticut, though a 
map drawn by Mr. Dimmock guided us to the exact site 
of the former colony.” From these unsuccessful attempts 
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