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NEW YORK STATE MUSEUM 



advilt galleries ami that each one contains a numl)c;r of minute notches, the 

 egg chambers. Each branch represents the work of a female and all have 

 origin in a central chamber near the entrance of which the male stands 



A more advanced sta^e of this insect's work is sliown at plate 62, figure 

 3, which represents the work of three females diverging from a common 

 chandn'r. it will be seen that a numlter ot the eggs ha\'e hatched and tliat 

 the larvae have worked to a considerable distance in a direction nearly par- 





Fig. 83 Split twig showiiiE; i;ir(lliiT:j by adult 

 j;alleries of T <• in i r u s I) .1 1 s ;i ni e 11 s 

 (;uithor's illiistriitli'H ) 



Fii;. 8} <i. tileries of T o ni i cMi s 1) a 1- 

 s a m e 11 ^ slidwiiig pitcli ctiarnher, inipal 

 cell in sapwiKid and work of yuiis^ 

 M (I 11 ti li a 111 111 II s larva (aiilhor's 

 illii-lraUMiii 



alli-l wiili tlic wootl fillers The egg notches ari' also \isil)le. The same 

 galler)- as it a]J])ears on the bark is represented at plate- (32, figure i. It 

 will be seen that in tliis instance at least, tlic l.n'xae bored in thi- sapwood 

 rather more than in the bark. A still more adxanced stage is shown at 

 plate 62, hgure 5. which r(;presents a ])ortion of a trunk whicli liad been 

 injured by a large number of the beetles. The atlult galleries, egg notches 

 and the work of larvae or grubs can all be seen. 



Plate 62, figure 4, re-presents a portion of a very batll\- infestetl trunk 



