82 STATEN ISLAND INSTITUTE OF ARTS AND SCIENCES 
18463. Ips cacographus Lec. Sept. (Thompson). On pine and 
spruce. 
18511. Xyleborus pubescens Zimm. Watchogue, Aug. 
18512. Xyleborus celsus Eich. April, in tulip log. 
18536. Dryocetes gravicollis Lec. June. 
Notre. ‘The citations of food plants from No. 16256 to the end 
are copied, unless otherwise credited, from “ Rhynchophora of 
Northeastern America.” 
