58 



5. The Oak Bark Borer, Urographis fasciatus. (De Geer.) Order Coleoptera ; 

 Family Cerambycid;e : — 



The grub of this beetle feeds on the inner bark of the oak, transforming to a long- 

 horned slightly flattened beetle, of a yellowish grey color, thickly covered with dark spots 

 and dashes. 



TIih female is provided with a straight awl-like ovipositor, nearly as long as her body 

 with which she perforates the bark when depositing her eggs. 



" Th« worms from these eggs mine their burrows mostly lengthwise of the grain or 

 fibre of the bark, and the channels which they excavate are so numerous and so filled 

 with wor?n dust of the same color with the bark that it is difficult to trace them. The 

 eggs are deposited the latter part of June, and the worms grow to their full size by the 

 end of the season, and will be found during the winter and spring, lying in the inner layers of 

 the bark, in a small oval flattened cavity which is usually at the larger end of the track 

 which they have travelled." (Fitch). 



I have taken this species on the red oak, at Montreal, quite commonly. 



6. The Apple Flat-headed Borer, Chrysobothris femor -at 'a, (Fabr.) Order Oole- 

 optera ; Family BuPRESTiDyE : — 



The larvae belonging to this family present an appearance somewhat resembling a 

 tadpole, (Fig. 39, a. and c.) the second segment behind the head being enormously en- 



Fig. 39. 



larged, while the remaining segments are much smaller. The species under consideration 

 bores under the bark and in the sapwood of various trees, the apple and white oak in par- 

 ticular. 



" The beetle (d) measures from four to five tenths of an inch in length " ; it is of 

 a greenish black color, polished and shining, with the surface rough and uneven. The 

 head and sometimes the thorax and the depressed portions of the elytra are of a dull 

 coppery color. The elytra or wing-covers present a much more rough and unequal sur- 

 face than any other part of the insect. Three smooth and polished raised lines extend 

 lengthwise on each wing-cover and the intervals between them are in places occu- 

 pied by smaller raised lines, which form a kind of network, and two impressed transverse 

 Bpots may also be discerned more or less distinctly, dividing each wing-cover into three 

 nearly equal portions. The under surface of the body and the legs are brilliant coppery." 

 (Pitch). 



Bores in the white (and probably other species of) oak, also in apple and peach trees. 



7. The Red Oak Flat-headed Borer, Chrysobothris dentipes. (Germar.) Order 

 Ooleopteua ; Family Buprestid.e : — 



Very closely resembles the preceding species but is smaller. I found it common on 

 red oak in the early part of June, very active, and taking wing readily when alarmed. 



