I 'I ATE XL. 



" 3T 











I\^--galleries of 7'ou\nx >-i/>l'cntrf>i. Stcl)., in s:ip\vo<><l of s|)rucc. Tlic larval galleries are 

 not present, as they groove the bast layer only. Noitli \\C-t Himalaya. 



