27 PLtTM. [1900 



as the branches of various kinds of trees, and especially amongst or- 

 chard trees of the Plum, Cherry, Apple, and Pear. Here it establishes 

 itself, and breeds between the bast and splint. That is to say, 

 between the innermost part of the bark, and the outermost part of the 

 wood. 



The mother-galleries, or tunnels, are stated to be about eight to 

 twelve centimetres •• long, and by this circumstance the workings may 

 be distinguished from those of Scoh/tns riKjiilosiis, of which the mother- 

 galleries are only from one and a half to three centimetres long ; and 

 in the very good figure given by Eichhoff of the galleries of rur/ulosus, 

 the mother- gallery is precisely half an inch in length. The two kinds 

 frequently breed near together. 



The larval galleries (of course) start from the mother-galleries, and 

 it is mentioned by Eichhoff that he has found the attack repeatedly 

 during winter in larval state, and in the month of March in beetle 

 state, though some portion was still to be found in larval and pupal 

 condition. 



Breeding-time is in May and June, but development of the beetles 

 is stated to take place some time before. 



In the case of the specimens under my own observation, the 

 development to pupa began to be noticeable towards the end of April, 

 and that of the beetles at the beginning of May. The material beneath 

 the bark was in too decayed a state (added to it not having been care- 

 fully detached) to give specimens of the galleries valuable for record. 

 But as this attack has not previously been reported, I give the above 

 account in the hope of leading some observers to add the points wanted 

 to complete the description of workings. 



Preventive measures consist in destroying infested boughs, or 

 bark, so as to ensure attack not spreading on the flight of the 

 beetles. 



* One centimetre is equivalent to ten millimetres in length ; or, in English 

 measure, two-fifths of an inch. 



