will very likely belong to the thirteen-year brood. The distribution, by 
States and counties, is as follows: 
A labama.—Lowndes, Montgomery (?). 
Georgia.—Cherokee, Cobb. 
North Carolina.—Lincoln, Moore. 
Tennessee.—Lincoln. 
GENERAL CONSIDERATIONS. 
The periodical cicada is so well known that a general account of it in 
this place is unnecessary. The illustration (fig. 1) will recall it to any- 
one who has ever observed it. When it appears in great numbers it 
naturally causes considerable alarm and arouses fears for the safety of 
shade trees and orchards. The actual damage, however, is usually 
slight, except in the case of newly planted orchards, and even here, by 
rigorous pruning back after the cicada has disappeared, much of the 
injury caused by the egg punctures (fig. 3) can be obviated. As a mat- 
ter of precaution, however, it might be well not to locate new orchards 
this spring in recently cleared ground or in proximity to woods in any 
of the regions where the cicada is here recorded. In many cases, how- 
ever, the clearing up and cultivation of the ground will have destroyed 
the larvee of the cicada, and it may not appear. 
The exact date of emergence of the adult cicadas from the ground 
will vary somewhat with the season. The experience of many years, 
however, indicates that most of the individuals will come out during 
the last week in May. Very frequently the holes through which the 
cicadas will emerge will appear in the soil some weeks before the insects 
actually come out. These holes are a little larger around than a lead 
pencil and are frequently so numerous as absolutely to cover the sur- 
face of the ground. . 
If there be any doubt as to the identity of the cicada, especially from 
records made about or at the middle of June, it would be well to send 
specimens for identification along with the record. It is hoped that 
everyone who receives this circular will keep a sharp lookout for swarms 
of this brood of cicada and assist the Bureau in fixing its range accu- 
rately by sending prompt and explicit information. Bulletin No. 14, 
new series, of this Bureau will be mailed to anyone desiring further 
information on the periodical cicada. 
Approved: 
JAMES WILSON, 
Secretary of Agriculture. 
WASHINGTON, D. C., April 16, 1906. 
O 
