28 THE PERIODICAL CICADA. 
that errors in referring old observations to a particular year are easily 
made. For this reason I am unwilling to establish a new brood on the 
strength of this single testimony, and prefer to attach this locality to 
this Brood IX until the contrary has been proven. Neither in the year 
1871 nor 1875 did I learn anything of the appearance of Cicadas in the 
locality mentioned by Mr. Miller. 
Brood X. — Trecfecim — 1875, 1888. 
In tbe year 1875, and at intervals of thirteen years thereafter, they will most likely 
occur in different parts of Texas. According to Dr. Smith they appeared in vast num- 
bers in some parts of Texas in 1^49, though he was not able to get any particulars. 
1875. — The year 1875 did not furnish any information regarding this 
brood, the existence of which is, therefore, solely based upon Dr. Smith's 
statement. That Dr. >>mith himself was unable to obtain definite local- 
ities for this brood might justly be regarded as a suspicious circumstance, 
and should the year 1888, in which the reappearance of the Cicadas may 
be looked for, also fail to confirm this brood, it would be best to strike 
it entirely from the list of the well-established broods.* 
Brood XL — Septendecim — W6\ 1893. 
In the year 1876. and at intervals of 17 years thereafter, they will, in all probabil- 
ity, appear in parts of North Carolina, Virginia, Maryland, Illinois, and Indiana. 
According to Dr. Smith they appeared from Raleigh, X. C, to near Petersburg, Va., 
in 1842 and 1859; in Rowan, Davie. Cabanas, and Iredell Couuties, in tbe same State, 
in 1825. 1842. and 1859: in the valley of Virginia, as far as the Blue Ridge on the 
east, the Potomac River on the nortb, the Tenuessee and North Carolina lines on the 
south, and for several counties west, in 1808, 1842, and 1859; in the south part of 
Saint Mary's County, Maryland, dividing the county about midway east and west, in 
1825, 18,42, and 1859; in Illinois, about Alton, in 1842 and 1859; and in Sullivan and 
Knox Counties, Indiana, in 1842 and 1859. 
1876. — Although this brood is thus well recorded in former years from 
many sections of the country, I received but few data in reference to it 
in 187(3 — a fact due to preoccupation with other matters. A correspond- 
ent at Lexington, Va., recorded their appearance at his place in the 
* The only information which might possibly be referred to this brood is contained 
in a letter we received July 1, 1*75, from Dr. D. L. Phares, and which reads as fol- 
lows: 
"About the 10th of June [1875], coming up the Mississippi River from New Orleans, 
at Bayou Sara, I heard of a family of Cicadas in West Feliciana Parish, Lonisiaua, 
near the river and south of Bayou Sara. I requested a gentleman to get what history 
he could of them and send me specimens. I have received uothing from him except 
tbe specimens I send herewith — all dwarfs, or perhaps a distinct variety." 
It will be difficult to attach these specimens, either as precursors or belated spec- 
imens, to any one of the recorded broods, unless to this Brood X, of which they may 
possibly be the easternmost outpost. Still, as this isolated family of Cicadas has been 
observed east of the Mississippi, and therefore in a locality widely separated from 
Texas, nothing that is certain can be said regarding the connection of this swarm 
with Brood X. 
