364 NEW YORK STATE MUSEUM 



White spotted sawyer 



JMonoIiamnius scutcllatus Say 



This longicorn is much less abundant about Albany than its larger relative 

 M. confusor Kirby. It measures about Se inch in length and may be recognized 

 by its nearly uniform black color mottled with white. 



The writer took a specimen on cl\ in^' white pine at Bath-on-Huclson 

 July 26, 1901, and one on hard pine at Karner June 13 of the same year. 

 It appears to be numerous in the Adirondack region, and somewhat so at 

 Pike. According to Dr Packard it is common, sometimes abundant, in 

 Maine and northern New England and specially in the lumber regions of 

 Lake Superior, from whence he had received it in large numbers. It also 

 occurs, according to him, in |)ine forests of British America, and in Wash- 

 ington and Oregon along the Pacific coast. Dr A. D. Hopkins records it 

 as a common and destructive wood borer in dying and dead white pine in 

 West A'irginia. This species appears to be comparatively rare in New 

 Jersey, since Dr Smith lists a single specimen from Newark and gives but 

 one other locality where it is known to occur. 



Rev. C. I. S. Bethune, writing of this insect in 1877, states that the 

 species is sometimes very abundant in Canada, and that he has occasionally 

 found the insects swarming in great numbers on fallen pines. Rev. Thomas 

 W. P^yles records an instance where this species was extremely injurious to 

 spruce in 1895. He states that in the spring one of his neighbors planted 

 an extensive hedge around his grounds and by the end of the summer nearly 

 every scion had been girdled or partially so by this beetle. He adds that 

 in a heavy wind he has seen a large spruce tree snap off two feet from the 

 ground, and on examination found that the stem was honey combed with 

 the larval galleries of this insect. Dr James Fletcher states that shading 

 cut logs with balsam boughs appears to be a very effective method of pre- 

 venting injury by this species and M. confusor Kirby. 



