52 ENTOMOLOGICAL SOCIETY 
he was able to study. Mr. Grote places it among the Hemileucini, 
but the most cursory glance shows at once its relationship to Cos- 
sus, and it is in the Cossidcz, and nowhere else, that this insect 
belongs. He gave a detailed description of the venation, point- 
ing out the Cossid affinities of the species.* 
Mr. Schwarz read the following note : 
CICADAS AT FORTRESS MONROE, VA., IN JUNE, 1886. While on an ex- 
cursion near this locality, on June 17, Mr. Heidemann and myself had the 
opportunity to hear the noise made by some Cicadas. There were some 
nine or ten specimens in the trees and shrubbery in or near the cemetery, 
not far from the fort, but unfortunately we did not succeed in seeing, and 
still less in capturing, a single specimen. In the year 1885 I had, for the 
first time in my life, the opportunity to listen to the song of the Period- 
ical Cicada, to the shrill and continuous notes produced by them where 
they appealed in large numbers, as well as to the more mournful song 
wherever they were less numerous. But on that day, near Fortress Mon- 
roe, I experienced, also for the first time, the difficulty in distinguishing, 
from memory, the song of the Periodical Cicada from that of other species 
of the same genus, and I admired then the musical ear of Prof. L. F. Ward. 
It will be remembered that Dr. C. V. Riley had last year quite a sharp con- 
troversy with Prof. Ward, who, from listening to the notes of some insect 
sitting on a tree or shrub, came to the firm conclusion that the insect in 
question was the Periodical Cicada. And this was in the month of Octo- 
ber, a most unusual time for the appearance of Cicada se.ptcndecim ! 
Neither Mr. Heidemann nor myself could come to a conclusion whether 
or not the Cicadas at Fortress Monroe were the Periodical species ; but, 
in either event, the appearance of a Cicada at that season is of sufficient 
interest to go on record, for the following reasons : If the Cicadas were 
the Periodical species they must either be stragglers of Riley's Brood XXII, 
which appeared in 1885, or belong to a Brood appearing in 1886, and at 
regular intervals of seventeen or thirteen years thereafter. In the former 
case the locality for Brood XXII would be of interest, as will be seen from 
Dr Riley's map, in the AgriculturalReport for 1885, illustrating the extent 
of Brood XXII. The brood is not known at all from the southeastern por- 
tion of Virginia or from the southern part of Maryland. If these Cicadas 
belong to a regular brood appearing in 1886 they must either belong to what 
is known as Riley's Septendecim Brood I, which is reported from a widely 
distant locality, viz., southern Massachusetts and northern Connecticut; 
or they must belong to an hitherto unknown thirteen-year brood. Both 
assumptions are somewhat improbable. Finally, if these Cicadas were not 
Cicada septendecim, they indicate a species of Cicada which appears at the 
* This communication has been published in full by Mr. Smith in En- 
tomol. Amer., ii, p. 124. 
