BY HENRY TRYON. 
87 
—these organs having the four basal and terminal joints yellow. 
It is the habit of the insect referred to to alight upon the green 
pod of the growing bean plant and after gnawing a tiny s i 
along the suture, should an opening not naturally occur there, 
to deposit — ^by means of a curved telescopic ovipositor it e 
groups of eggs near the point of attachment of one or more o 
the contained seeds. Shortly after this event the beetle itse 
dies. On hatching out the grubs, which are at this tune o 
microscopic dimensions, penetrate the beans proper an ee t, 
within the latter are harvested together with the seeds t la aey 
infest, their detection then being a matter of no little ^ 
Several individuals usually occur at one time within eac i se 
thus afferted. After awhile the beans attacked present sma 
translucent areas on their surface, as if theii 
points had been partly permeated by grease. These pace 
mark the position of the more superficial burrowmgs. borne, 
however, of these marks are quite circular in outline, and then 
special form is thus accounted for. When the gru is u 
guaws <1 eylmdrical tunnel outwards, and this eiic s imine ^ 
at the skin of the seed, this even being partly cut “ 
circular manner. The grub then makes a cell just " 
outer boundary of its tunnel, and undergoes its ur ler 
matious iherein. Eventually it pushes outwards the 
.•hich eoufined it, and emerging as a perfect beetle lea^ n h 
bean a cleanly cut hole to mark the event. If mean^ e ti^ 
beau has been planted the Bruchus weevh comes 
ground, and can sustain rtself for a 
of the voung plant, or by occasmnal visits o he blossoms o 
uelglihmirlng ^owevs m^I 
tlm beetle ^ 
outside of it, using for the purpose issuin-^ penetrate 
quickly hardens on expo^ '‘Seneration after generation may 
and so the m.ct — 
stated that no bean is proof agams ^ Madagascar, 
Brisbane it has been noticed by French 
the ordinary white haricot ean, mentioned procured 
bean. In the case of a samp e 
