RHYNCHOPHORA. 
263 
of a gallery gnawed by the larva through the solid 
wood, but not penetrating the outer bark. 
The Oryptorrhynchina and Ceuthorrhynchina have the 
rostrum bent downwards, and received into a more or 
less distinct canal on the under side. The anterior 
legs arc nearly always distant at the base. 
The geniis, Gryptorrhynchus, contains one species, 
lapathi (Plate XII., Pig. 3), not uncommon on 
willows, into the trunk of which its larva bores, 
making large cylindrical holes. It has been noticed 
that this insect, when alarmed, makes a creaking noise 
by rubbing the base of its prothorax against the front 
of the mesothorax. 
The species of Acalles, — dull brown, slightly 
variegated, with strong ridges and spines, — are found 
in old twigs, hedges, &c. They have a peculiar habit 
of simulating death , contracting their legs continuously 
with the under side of the body ; and one of them has 
been observed to make a stridulating noise similar to 
Gryptorrhynchus. 
In Cvcliodes the rostrum is received into a canal 
between the front and middle pair of legs ; its species 
are small, convex, and “dumpy;” one of them, 
didymus, a dull brownish-black insect, variegated with 
white scales, and having a white spot on each side of 
the elytra, is most abundant on nettles. 
Rhytulosomus and Orobitis are both peculiar, on 
account of their globular form; the latter — a dark 
blue shining insect, found on a pretty species of vetch — 
having a habit of applying its legs close to its body. 
Packed up in this manner, it has all the appearance of 
a ripe seed of the common wild bluo hyacinth, and its 
size seems much increased when it unfolds its loner 
