ENTOMOLOGICAL NEWS. 



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Philadelphia, Pa., April, 1911. 



THE PERIODICAL CICADA IN 191 1. 



Circular No. 132 of the Bureau of Entomology, U. S. Dept. 

 of Ag-riculture, by Mr. C. L. Marlatt, Assistant Chief of the 

 Bureau, dated February 13, 191 1, calls attention to the Period- 

 ical Cicada of the present year. Two important broods of 

 this insect, misnamed "locust," will appear. "One of these 

 belongs to the 17-year race and extends from New York south- 

 ward into North Carolina, in general lying east of the Alle- 

 gheny Mountains." Technically it is known as Brood II and, 

 although occurring in part of the same territory, must not be 

 confused with the great brood — X — of the years 1902 and 

 1919. Brood II seems not to have appeared in any locality in 

 sufficient abundance to receive a star (*) in Mr. Marlatt's 

 records,! the device employed to indicate places (counties) 

 where "the cicada occurred in one or more dense swarms." 

 Observations made by Mr. H. H. Brehme, in Cape ^May County, 

 New Jersey, in November, 1910, and published in the News 

 for March, 191 1, page 142, hold out the possibility of such a 

 dense swarm next summer. 



The other brood due in 191 1 is XXIII "of the southern, or 

 13-year race, and covers the lower half of the Mississippi Val- 

 tSee especially Bulletin No. 71 of the Bureau, 1907. 



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