tage of the infested fruit (at gathering) had been attacked by the second 
brood and the larvae were still present." (Op. eit., 1891, p. 106.) The 
second brood referred to in these last records is a mere inference, but is 
supported by the undoubted rearing of small numbers of moths in Sep- 
tember by Mr. Atkins. 
It is evident from the European records and Mr. Atkins' studies, 
-when compared with the records from the Middle and Western States, 
that the number of broods of this insect is merely a question of climate 
and temperature, and granting the correctness of Prof. Smith's obser- 
vations, it must be inferred that the climate at New Brunswick differs 
in the summer season sufficiently from that of the Middle and Western 
States, even -of Iowa and northern Illinois, to lead to the development 
of but one yearly brood. This difference in climate receives support 
from the discovery by Prof. Smith that the imported elm leaf-beetle 
has one brood less at Xew Brunswick than at Washington, although 
the difference between the two points is not great. Prof. Smith's 
experience makes it very desirable to have careful breeding records 
conducted not only for northern New Jersey to confirm his own expe- 
rience, but for New York, the New England States, and Canada, 
throughout which region only can the double-broodedness be doubted. 
A NEW SAWFLY WHICH IS INJURIOUS TO HOLLYHOCKS. 
By T. D. A. Cockekell, Las Cruces, N. Mex. 
On July 3 of the present year I found close to the cathedral at 
Santa Fe, Mex., a number of sawfly larvae feeding on Splicer alcea 
angustifolia Spach. From these adults of both sexes were in due time 
bred. Although the Sphceralcea is extremely common at Santa Fe, 
and likewise at Las Cruces, X. Mex., I did not find it infested by these 
sawfly larvae except at this one spot. In fact, of several plants there 
growing together some were very badly infested while others were 
nearly free. In August another generation of larvae appeared, and 
again the same plants were infested in the same way, so that, although 
the sawtlies were to be seen flying about in half circles at the time of 
emergence, they seemed to have returned in each case to oviposit on 
the plants from which they came. The plants, being twice defoliated, 
presented a sorry appearance. The leaves produced after defoliation 
appeared to be shorter, and broader in proportion to their length, than 
those on the normal plant. 
The hollyhock (Althaea rosea) is commonly cultivated in gardens at 
Santa Fe, and I did not anywhere find it attacked by the sawfly larvae 
except in the garden of Governor "Thornton, which is only about 160 or 
200 yards from the original Sphceralcea locality. This was on August 
9, and the hollyhocks were badly injured by a brood which was inter- 
