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NEW YORK STATE MUSEUM 



yellowish markiiii^s as seen in fiu;urc 5. Tlic larva or grub producing the 

 pigeon tremex may be recognized by its cylindric form, the possession of 

 6 legs on the three anterior segments ami I)y the ]>r()mincnt horn at its 

 caudal extremity. 



Life history and habits. \'cry litth- has been n-corded concerning the 

 life history and habits of this conspicuous insect. The adults make their 

 way out of the trunk through a hole about the size of a common lead 



fig- 5 Pigeon tremex: <i-larva showing the Thalcss.i larva fastened to its 

 sitle ; ^— head of Larva ; £■— pupa of female; (/—male pupa; ^— adult female 

 — all sliRhtly cnlarRed. (After Riley, Ins. Life, i, U. S. Dep't Agric.) 



pencil, and during the summer months they are fre([uentl\ found on diseased 

 maples and elms, sometimes with thi! stout o\ipositor bent at right angles 

 to the body as the female inserts it with a wriggling motion. .She is often 

 unable to withdraw her o\-ipositor and ])erishes on the tree. Occasionall)', 

 the remains of a consitlcrable number ma\' be found about a single trunk. 

 A number of eggs are a])parentl)' deposited near together as the writer has 

 uncovered groups of \'oung larvae (juite near each other. It is also well 

 known that this species usually occurs in some numbers, if at all, in an 

 infested tree. The eggs have been described by Harris as oblong oval, 



