24 College of Forestry 
had been blown down by a heavy windstorm late in May, 
1916. The roots still adhered and the lower part of the tree 
was still alive and green in August. The tree had fallen 
across a trail, however, and the top about five feet from the 
base had been sawed off to clear the trail. In August this 
top was found to be heavily infested by Polygraphus rufi- 
pennis and several sections of the trunk from eight to twenty 
feet from the base were shipped to Syracuse and there placed 
in a breeding cage on August 18. During the rest of the 
season the following insects were taken from this cage: 
numerous adults of P. rufipennis, a specimen of a small 
chaleid of undetermined species, Hrytoma sp. and Spathius 
tomict. On October 24 some of the bark was removed, dis- 
closing numerous young adults of P. rufipennis and also the 
larva of a clerid undetermined and the larva of an unknown 
cerambycid. The material was left out of doors until early 
in January, 1917, when it was brought into the heated base- 
ment, and later, in February, was transferred to a cool room, 
where it remained till June, when it was again transferred 
to an outdoor breeding cage. On July 3, 11 and 18, speci- 
mens of Neoclytus longipes emerged. All of the evidence 
from other sources goes to show that this cerambycid is one 
which normally requires two years for the completion of its 
life history. It is believed that the normal life history was 
shortened by the treatment the material received. The out- 
door conditions from which it was removed early in January 
corresponded to the first winter, the month in the heated 
basement where the temperature varied from about fifty 
degrees to seventy-five degrees corresponded to the second 
summer and the low temperature in the storage room from 
February to June simulated the second winter. It is worthy 
of note that the specimens of Neoclytus longipes from this 
material are rather undersized although normal in other 
respects. The three specimens in question measure 7, 8 and 
8 mm. respectively, while those from other lots of larch were 
from 9 to 9.5 mm. The length mentioned .by Blatchley as 
characteristic of this species is from 9 to 11 mm. 
