236 
inaccessible. Miss Smith's observations were tolerably complete. She 
knew the egg, the young larva, the male pupa, the adulfc male, and the 
adult female. She also reared an interesting parasite, and followed the 
development of the Pseudococcus throughout the year. Her observa- 
tions were made in Peoria, 111., and she found the insect in only two 
localities in that city and upon the hard or sugar maple alone, whereas 
in Europe it is a very common species, and occurs also upon the elm, 
linden, and chestnut. 
Since the publication of Miss Smith's article, and the receipt from 
her of specimens of this insect as well as its parasite, the species has 
never been received at this office, although many hundreds of send- 
in gs of Coccidse of many forms and from very many parts of the 
country have come in. This fact alone fixes the rarity of the species. 
It is possible that it has been more abundant than this fact would 
indicate, and that it has been mistaken by casual observers for the 
cottony maple scale. This, however, is hardly likely, since the latter 
insect is one of the species most commonly received at the office. As 
has happened so many times with other comparatively rare insects, 
the maple Pseudococcus has suddenly become a species of more or less 
importance, and during the present season, after a lapse of fourteen 
years, we have received it from four different localities, each time with 
reports of abundance. 
The first receipt was from Mr. John G. Jack, of the Arnold Arbore- 
tum, who writes me that the species is very abundant in some locali- 
ties in the vicinity of Jamaica Plain, Mass. (five miles southwest of 
Boston), and in some parts of Brookline, particularly on some fine old 
sugar maples on the estate of Prof. 0. S. Sargent. Specimens were 
sent by Mr. Jack, under date of July 21, and consisted of full-grown 
females bearing eggs, upon maple leaves. The second receipt was 
through the American Florist, at Chicago, from Eea Bros., of Norwood 
Nurseries, Norwood, Mass. Norwood is fifteen miles southwest from 
Boston. Pea Bros, sent specimens upon the bark of maple, and wrote 
that the maple from which the bark was taken had the main trunk 
and many branches covered with the insect, and that it was spreading 
to other maple trees near by. The third receipt was from Prof. W. G. 
Johnson, of the State Laboratory of National History, at Champaign, 
111., who, under date of August 29, sent specimens and wrote that he 
had received them on the leaf of a sugar maple from Mount Carmel, 
111. Mount Carmel is 175 miles southeast of Peoria, the locality in 
which Miss Smith originally studied the species. The fourth receipt 
was from Prof. L. F. Kinney, Horticulturist and Acting Botanist of 
the .Rhode Island Experiment Station at Kingston, E. I. He sends 
specimens of the females on maple leaves under date of September 17, 
stating that his attention had been called to them several times during 
the present season, and that he had supposed them to be identical with 
the ordinary cottony maple scale. It is quite within the bounds of 
