INSECTS AFFECTING PARK AND WOODLAND TREES 



357 



bers at Sliiiijerhinds and Kariur. Ii was found workiiii^f in a recently cut 

 lian! pine al Karner and in while pine linihs which Iiad just l)een cut at 

 Slinj^rerlanils. This beetle was common at ^[an()r L. I., in igoo. It was 

 taken from unth-r the I)ark of thi- midiUe jjortion of tlie trunk of a pilch 

 l)ine, which was attacked at the base by I ) e n d r f) c t o n u s terebrans 

 ()Ii\-. It appeared to \)r the primarx' olteiuK;r in one case where it was 

 boring' in hu"t;"(- nund)ers in a limb on which the needh-s were still L;reen, 

 though they droppetl reatlilw It was found working' in the livint^ tissues at 

 the base of another dyini;- hard pine. Tliis lattter tree had thrown out 

 sprouts in a last effort to sustain life antl even these were clxini;'. Another 

 small tree was found badh" infested with this bark borer. The leaves were 

 just be^'innin^' to turn yellow and the attack was confined almost entirel\- to 

 the u])per portion ol the trunk. 



Description. This is one of the medium sized species of Tomiciis. 

 Ihe beetle is a tritle over la inch lont;-, cylindric, rather slender in form and 

 like other s|)ecics of this grenus, varies in color from a 

 light to a tlark brown. The ])osterior excavation or 

 declivity of the winjj;- covers is bordereil In' a sc^ries of ^ ,y 



five teeth. The one near the dorsal median line is 

 \'er\' minute-, the second and third are much larger ami 

 connectetl at the base and the fourth and fifth arc rig.7j l..:^.....)- oi i omicus 



c .1 c o c r .1 p h n s (.mthor's 



smaller and distinct from each other. The prothorax iiiusiraiioni 

 is rather coarsely granulated and the wing covers are marked with longitu- 

 dinal rows of rather deep punctures. The antennal structure is illustrated 

 on jjlate 66, figure 8 and the tibia in figure jic. 



The soft white pupae mav be found in their oval cells in the bark. 

 The pupa is usually creamy white, about as long as the beetle and wilh a 

 tapering abdomen wilh one or two segmeiiis usually extending l)eyond the 

 tips of the wing covers. 



The full grown larvae or grubs arc a creamy white, about 3 \(, inch long 

 and with the body slightly curved. The luatl is light Ijrown with the tips 

 of the mouth parts and adjacent sutures much ilarki-r. 



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