52 
BRITISH GALLS 
lump of resinous matter. Similar exudation occurs at the 
aperture of burrows in this tree made by certain lepidop- 
terous larvae that are usually classed as gall-causers; but 
the absence of hypertrophy of the branch around the 
burrow and of excrement within, serve at once to distinguish 
the burrow of H. pinipevda from that of a caterpillar. 
Pseudo-Galls 
A few beetles roll up parts of living leaves into marvellous 
little pouches or rolls for the reception of their eggs. It is 
possible that such productions may be mistaken by some 
observers for true galls, but they are outside the domain 
of the cecidologist. One of the most remarkable of these 
pseudo-galls is that made by Attelabus curculionoides from 
the apical half of the Sweet Chestnut leaf. It is a minute 
cylinder, about 8 by 4 mm. ; it hangs from the other half of 
the leaf, supported by the midrib only. Each cylinder 
contains a golden egg. 
