GRANARY WEEVILS: S. GRANARIUS AND S ORYZH%. 41 
orange clouds on the sides seen only as tiny specks; the iron-grey of the 
lowest tubercles, the feet, and the mottling of the last three segments, all 
distinguishable only by using a lens; when even the white cheeks are seen 
to be sprinkled with the same flour. The tubercles of the dorsal and 
middle rows are very thickly clothed; and by their arrangement give a 
peculiar aspect to the caterpillar, which it had not before, not even in this 
stage at first. Those of the prothorax project over the head in close array ; 
those of the metathorax are perpendicular; those of the mesothorax sloping 
intermediately. Then the abdominal series have a strong backward 
inclination, and about equally; so that the transition from the thoracic to 
the abdominal series is abrupt and marked in the facies, though really the 
former are graduated inter se. The length now attains about one inch. 
LARVA.—4th age (fig. c). 
Greenish-white; the skin all studded with minute oval darker specks, 
which give the impression of translucent cells in the substance. The 
orange clouds on the sides are nearly obsolete, especially the posterior ones. 
Last segment azure, with the oval specks dark blue. A rondo-triangular 
ring of rich pale orange is now conspicuous on the outside of each hindmost 
proleg. Face wholly pale green; lip and clypeus margined by a black line. 
Thoracic tubercles shorter and blunter than before; the rest much increased 
in length, and become soft spines, lying nearly flat, pointing backward and 
overlapping ; lowest row dark iron-grey. Feet and prolegs iron-grey; the 
latter crossed by a band of greenish white. The farina is again very thick, 
and is excreted early. 
(To be continued.) 
GRANARY WEEVILS: SITOPHILUS GRANARIUS AND 
S. ORYZA. 
By Epwarp A. Frrcu. 
Or all destructive weevils the one which most affects the 
much talked of “‘ British interests ” is the granary or corn weevil. 
Our own three and a half millions acres of wheat have enemies 
enough to contend with, attacking, as they do, root, stalk, leaf, 
ear and kernel; but it is after the corn has passed safely through 
these and other ordeals and is harvested, threshed and granaried, 
that the Calandra appropriates the never to be wasted bread-stuff. 
The damage to our home-grown wheat, however, is but as a drop 
in the bucket compared to its destruction of foreign grain, and 
that drop is, in a sense, of our own seeking, as home-grown 
G 
