456 FAMILY CURCULIONIDAE 



Specimens of this beetle were taken in the dry sapwood of a dead 



pyinkadu-tree at the end of January 1905. The insect 



Life History. tunnels through the bark until it reaches the sapwood, 



which it penetrates from an eighth to a quarter of an 



inch, and then carries its tunnel at right angles to the former direction. 

 This latter tunnel is sometimes broad and somewhat elliptical in shape, 

 of greater diameter than the beetle, the bottom being filled with powdered 

 wood-dust, in which it is possible that the eggs are laid, or pairing may take 

 place here. In other cases examined the tunnel parallel to the long axis of 

 the wood was of the same diameter as the beetle. The beetle was fairly 

 plentiful in trees examined, but appeared to infest only the sapwood. 



Rhyncholus ? sp. 

 Habitat. Katha, Upper Burma. 

 Tree Attacked. Morns laerigata. Mohnyin Forest, Katha. 



I cut a specimen of a Rhyncholus beetle from a tunnel in the sapwood 

 of a felled Morns lacrigata tree in the third week in February. The beetle 

 was mature, and evidently ready to issue from the tree as soon as the 

 weather got warmer. 



Rhyncholus ? sp. 

 Habitat. Darrang, Assam. 



Tree Attacked. India-rubber (Fie us clastica}. Charduar Rubber Plan- 

 tation, Darrang. 



I took some specimens of a Rhyncholus beetle from the wood of drying 



felled rubber-trees in the Charduar Rubber Plantation 



Life History. early in April 1906. The beetles were ovipositing. 



The females eat out long curving tunnels down into the 



wood of the tree, the eggs being laid at the bottom of the tunnel. In some 

 cases larvae had already hatched from the eggs. 



