Plate VII. 
Fic. 19. Burrow of Neoclytus longipes in limb of larch. 
This cerambycid is a two-year form and the larval burrow 
here is narrow, deep and extraordinarily long. After groov- 
ing the sapwood just beneath the bark for most of its life, 
the larva bores through the sapwood for some distance before 
pupating. Thus the exit hole may be on the opposite side 
of the limb from the point of entrance to the chamber in the 
wood. Slightly more than one-half natural size. 
Fie. 20. Another burrow of NV. longipes in a larch limb. 
This burrow is perhaps more typical from the fact that the 
larva tunneled the wood for a distance of 1014 em. before it 
pupated. Reduced to slightly less than one-half natural size. 
Fic. 21. Burrows of Pogonocherus mixtus in larch. The 
burrow is here rather short but quite wide for so small a 
form. Entrance to and exit from the pupal chamber is 
through the same opening. This is not so common among 
cerambyeids as it is with the buprestids. About one-half 
natural size. 
Fic. 22. Burrow of Anthaxia quercata in limb of larch. 
The burrow made by this small flat-headed borer during its 
first year is shallow and rather narrow, but during the second 
year the larva is likely to excavate a broad area rather than 
continue it as a linear mine. The adult emerges from the 
pupal chamber through the same opening by which the larva 
entered. About frve-eighths natural size. 
