482 



SEVENTH REPORT OF THE FOREST FISH AND GAME COMMISSION. 



COARSE WRITING BARK BEETLE. 



Toiniciis calligraplius Germ. 



The preceding species is confined to the very base of the trunk -while this form is 



found ahnost solely in the thicker bark of the trunk and larger limbs of both white 



and hard pine. The adidt beetle is cylindrical, about '/( 



of an inch in length and may be recognized by its more 



or less longitudinal burrows in the thicker bark. This is 



one of the largest and commonest species of this genus 



found in the State and its operations have been observed 



by us in many localities in and about Albany in the 



Adirondacks, and on Long Island. 



Description. The beetle is about l^ of an inch in 



length and varies in color from light brown to nearly 



black. It is rather stout, cylindrical, and the conspicuous '^- 



excavation or decli\'ity at the posterior end of the wing 



covers is bordered on each side by a row of si.K teeth or 



chitinized processes. (Figure 5.) The teeth are arranged 



on each wing cover as follows: A minute tooth a little to 



one side of the median line, a dorsal sub-equal pair, and 



three teeth of nearh- uniform height on the lateral and 



ventral margin of the declivity. The prothorax is thickly 



and rather finely granulated while the wing covers are marked with rows of closely 



set, rather large punctures. The general form of the beetle and the sculpturing 



of the dorsal surface and certain structural details of the antenna; are shown 



in figure 4. 



The white pup.ne occur in oval cells in the bark. 

 They are not quite so large as the beetle, having a 

 .smaller transverse diameter and tapering very much 

 to the posterior extremity. Two or three of the 

 abdomir.al segments project beyond the tip of the 

 wing covers. As the pupa; advance in age, the 

 FIG. 5- OECLivi rv OF TOMicus white becomes yellowish and the mandibles become 



CALI.IGRAPHUS. 



OK.CNA! . dark brown. 



The full grown larva is a brown headed grub about ^^ of an inch long when 

 normally extended. Its body is rather stout, usually slightly curled, and there is 

 frequently a considerable thickening of the thoracic segments. Portions of the 

 mandibles and the borders of adjacent sutures are dark brown. 



FIG. 



TOMICUS call:- 



CRAPHUS. 



ORIGINAL. 



