THE ENTOMOLOGIST. 
Nos. 94 & 95.] SEPTEMBER, MDCCCLXXI. [Pricz 1s 
Answers to Correspondents. 
LYMEXYLON NAVALE (MAGNIFIED). 
Fig. a represents the palpus, and the line beneath this shows the exact length 
of the beetle. 
Ship-timber Beetle (Lymexylon navale).—The information 
required by Mr. H. Bayne is rather of a multifarious character, 
but I shall have much pleasure in giving as much as I am able. 
The destroyers, or perforators, are of three very distinct and 
dissimilar kinds :—/irst, Lymexylon navale, a coleopteron, or 
beetle, in the larva state; second, Limnoria terebrans, a 
crustacean of the legion Edriophthalma; and third, Teredo 
navalis, a mollusk of the family Pholadide. Lymexylon 
navale, represented in the figure, appears to have been a 
most excruciating animal to our systematists; together. with 
another beetle, of similar economy, it constituted the tribe 
Xytotrogi of Latreille, and the family Lymexylontide of 
Stephens. Lymexylon navale having done great injury to 
timber in the dockyards of Sweden, the king directed 
Linneus to investigate the subject and report: he did so, and 
VOL. V. Z 
