199 
ttacka the bark. In tte genua ffylam«s, and otiien of Hub tmdij, the parost 
eetles make a long straight bomwr, sad the eggs are depoeiied more or k« 
Jgnlariv along either side. Unlike these, Crrphalms UmodmUu makes what mzf 
B called a Ihtle irrcsTilar carern rather than a bomnr. This is ahrajs imme- 
iately beneath the oater bark, and does not penetrate to the wood- I find 
irariably a pair of beetles in eadi cavero, ercn wliea nearly all the eggs are 
eposited, or when the eggs are hatched; these are laid in little ( 
le recesses of the carem, sometimes aS in one heap, generally in three or fnr, 
ad to the number of from 30 to 60. The larra when hatched bnmiw wi^ust 
ly regularity, but tend to travel in a vertical directiiHi. They are SooObx gnbe, 
ith strong jaws, and a distimit head like the larra rf die oQkx Jylofkofa, I 
und that the eggs laid in May had in August produced son 
loogh many still remaned in the larral and pnp^ states. This 
lee this season with Hylesinida. I hare been watdiing; and I 
lecies, lite the others, does not nsually come to 
ter, and then hybemates befiire emerging. 1308 ^leeies ^ipeara only to attack 
e Hving trees, and thon^ so minute, is from its numhezs aUe to caase tiie des. 
action of any trte it colonises. A brancA is uanalty firet atiadced bysCTeral 
irs, whose progeny then, laying their eggs in it, osnplete iis des^iKtion. 
herever a brood has been reared a wide rou^ crati is observahie in &e baA. 
d a destroyed branch proems the same ^pearance in an ezaggoatedlorB; the 
lole bark looks bloated and cracked, and is piereed by the exit holes of tie 
etles. A branch is probably often attacked in rafficiout ftrae to desizoy it m 
e season, and I hare already menticmed my bel^tfaat tfe deefancdcn c^a irbife 
» has been accomplished daring the presait aeaaon. The trnnk is rarely at- 
Eked tiU most of the branches are dead, and its vitality fe then so modi 
at no distornon occurs from their ravages, except of oomse that it soon 
ite decayed. 
On the same aspen trees thai were blown over thae was a qoanti^ of i»y, 
d the bending^of its stems, where it was torn down, had proved as xigarioiB to 
as if it had been cut across. This has ^Ren a prey to Hylmr^vs pQosus, rare w 
British insect. Odd specimens occur; but as no one in this couniiy has remaiked 
on its habits, it has never been found in any quantity. I have found it in almost 
J- ivy that was in proper condition fra- its attack. Neither healiy Eving ivy. nor 
Sgots cut from the tree, suit its taste, but when sickly and dying, it is at once 
acked. There is a feshion of treating ivy, observed in maaj dis&icis, rf amply 
tdng across or removing an inch or two from the ston, the resolt of wfaidi, as 
well known, is not the immediate death of the plant, whidi ngnally b uryh^i ftr 
rear or two. The back of either the tipper or Iowa- (bat nsnally the iqiper) 
*ion of ivy so treated is a fevourite habitat of Eylmyus jnZosiis. In ths Oe 
rent beetle makes a burrow of about an inch in lengtJi, often half roond ils 
■n, and the eggs are laid rather irregularly along its sjdas Kid oorered ovct with 
as. The larvae eat galleries at right angles to this, and sometimes travel as 
ndarly and symmetrically as those of Fulei^iMtf fra*imi. When ot«— ^^»»g ivy 
the beetle last spring, I foimd several shallow grooves, asnaSy on ta»»»nM. | jn,,!, 
: suitable for oviposition, and along the side in contact with the B^^nvtiBg tree. 
Bse were often tmtenanted, and had been obviously merely eaten as food by the 
