PLATE IV. 
Pig. 1 la, side and dorsal view of the larva of Xylotrechus Stebbingi. 
Pig. 2, 2a, side and doisal views of the beetle Xylotrechus Stebbingi. 
Pig. 3, Section of stem of an oak with bark removed showing the larval galleries 
of X. Stebbingi in the sap wood. 
Fig. 4, Section of portion of stem showing the elongate pupating chamber of 
X, Stebbingi in the wood. 
Fig. 5, beetle of Xylotrechus Smei. 
