DP 
Fiemarks en Art. X. Vol. IX. p. 288. > 
neck, crossed by a smaller longitudinal groove ; fore feet ro- 
ust; hind feet exceedingly long, with five toes webbed to the 
- last joint; soles yellow tuberculated; tubercles at the end of 
e toes large and flattened. . 
Inhabit Jamaica: presented by Mr. Betton of German 
rown. ra ) i SETS 
Arr. VIIIl.—Remarks occasioned )y Art. X. Vol. IX. p. 288. 
- In his account of the appearance of the insect, which ea/ 
out of a table of fir, Mr. Fogzo seems to maintain that the 
egg was not deposited in the tree, but © that the larva pene- 
trated the tree in.order to prepare for becoming a chrysalis.” 
I am not certain that this is the meaning of Mr. F., because 
he implies just before that insects do from instinct deposit 
their eggs in the appropriate place for the animal to undergo 
its changes. The general solution of the phenomenon by Mr. 
. is probably correct; but the other notion does not seem 
authorized by fact. The egg was doubtless deposited in the 
trer, whatever were the causes which prevented the 
earlier developement of the perfect animal. In the Literary 
Philosophical Repository, published at Middlebury, 
Vi. .816 I gave some account of the fact of bugs eating 
eut of a table of appletree, the property of Mr. P. S. Put- 
nam of this town. The last bug appeared in 1614; two 
others several years before. The place of the last was near- 
est tothe heart of the tree, and all of them made their course 
along the grain between the cortical layers. The apple-tree 
of which the table was made, had then been cut down twenty- 
- eight years,-and the bug was covered by thirty cortical lay- 
ers besides those of the sap-wood, which had been cut off. 
Allowing ten cortical layers for the sap-wood, the egg must 
have been deposited forty years before the tree was cut 
down, and sixty-eight years before the insect emerged into 
light. Now there can scarcely be a doubt that the egg which 
- produced the last insect was deposited before the others, es- 
pecially as there were several cortical layers between them, 
and its developement was consequently retarded by some 
