48 NEW YORK STATE MUSEUM 
and should therefore receive special attention if it is desirable to 
preserve them. The range of this pest is still extending as shown 
by the receipt of specimens from Ellenville and Gloversville, local- 
ities not previously known to be infested. 
Beetle work in 1912. The season opened with every indication 
that extended and severe injury would result. Numbers of the 
beetles began feeding early and on June 5th their work on elms 
at Nassau was much more conspicuous than it had been for some 
years. Many of the leaves on the lower branches were badly 
riddled and those in the tops of the trees showed no perforations. 
The indications then were favorable for exceptionally severe dam- 
age. Egg masses were just being deposited, those observed being 
moderate to large size and containing from five to about thirty- 
five eggs. A period of relatively cool weather occurred the second 
week in June. The official records of the weather bureau state that 
in New York lower temperatures were recorded during that month 
than any previous June since the weather service was established. 
The maximum temperature at the Albany station dropped from 80° 
to 85° F. during the first few days in June to 70° and even 63°, 
the minimum falling as low as 41° on the 8th. Our studies of this 
insect in 1898 show that this markedly cool weather came at about 
the beginning of the ten-day period when the beetles should deposit 
approximately half of their entire quota of eggs. As a consequence 
of these abnormal conditions, oviposition was checked and the 
hatching of eggs greatly delayed with a corresponding backward- 
ness in the feeding of the grubs. An examination of conditions at 
Nassau on June 24th showed that comparatively few egg masses 
had been deposited and there was little evidence of work 
by young larvae. Only a few about one-quarter grown were dis- 
covered. The same conditions appeared to prevail in Albany and 
up to that time, so far as our observations went, comparatively few 
eggs were found. On July 3d most of the grubs on Manning 
boulevard, Albany, were only about one-quarter grown, a few being 
half grown. On July 7th a few full-grown grubs were observed at 
Nassau, though a number of smaller larvae were still feeding. 
At Mount Vernon many grubs were only half grown July roth, 
though pupae were rather numerous on a few trees and some 
recently transformed beetles were observed. 
The season was also peculiar in the uneven character of the 
injury. The elm leaf beetle is well recognized as a local species. 
The season of 1911, as stated above, was marked by an unusually 
