- 
id 
250 Rev. Mr. KIRBY'; Obferoations upon Infecis that prey upon Timber, 
and the wood, upon the furface of which they ufually trace in 
feeding, what Linnzus calls pinnated labyrinths, in which a num- 
ber of lateral lines, nearly parallel with each other, form right angles. 
on each fide, with a central one; and thus the bark is finally fepa- 
rated from the wood. Mott trees, I imagine, have a particular 
fpecies of this genus affigned to them. Thus /ps piniperdus attacks 
the fir. Ips Scolytus, the elm. — Js niger (a), L grifeus (b), L ruff- 
cens {c ), and, I believe, T. nebulofus (d ), undertake the barking of the 
ath. zs fufcus (e), and probably more fpecies, feed upon the oak. 
Even fhrubs do not efcape, for whin or furze (Ulex europecus ) is 
preyed upon by the minute 75; rbododa&tylus (f), which I have fre- 
quently taken coming out of the larger fticks of a dead whin-fence 
in my own garden. Next to thefe come the Pr; feveral fpecies 
of which are found in wood. I- meet with Prinus tefellatus in the 
willow, and I believe it will attack deal or any foft wood. It is 
one of thofe infe&s that is called the death-watch, from a certain : 
found which it makes at regular intervals refembling the clicking 
of a watch, which, the vulgar fuperftitioufly imagine, forebodes the 
death’ of fome perfon” in the houfe-in which it is heard. The 
Pinus EN be and Pt. cylindricus (gz), feed in the fame tree. 
tal Niger. 24. I. fubcylindrichs, niger, thorace pundtulato, elytris crenato-ftriatis, plan- 
tis piceis. Marfham M.S. | 
(6) Grifeus. 9. T. ferrugineis, c capite nigro, TT ferrugineo teftaceoque ` varius. Ibid. 
fe ) Rufefcens. 10. l. fubtüs luteus, fupra rufus, elytris luteo nebulofis. Ibid. 
(d) Nebul; bfus. 8. Y.fubvillofus, corpore nigro ciméreoque vario. Ibid. Bo/richus 
Frain ater fufco cinereoque varius, elytris punctato ftriatis, antennis teftaceis clava 
cinerea acuth. Panz. Fn. Inf. Gerin. Init. n. 66. tab. 13. 
(e) Fufcus. 5. Y. fufcus, antennis pedibufque teflaceis; elytris retufis confe punc- 
tulatiss Marfham M. S. 4 
> (f) Rbodedactylus. 22. I. niger, villofus totus, plantis rufis. Ibid. 
(g) Cylindricus. 6. Pt. fubcylindricus fufco ferrugineus; thorace gibbo lzviufculo ; an- 
tennis pedibufque rufefcentibus, Ibid. 
7 | ! But ` 
i " 
