FIELD BOOK OF IiNSECTS. 



chesnut, mountain ash, linden, boxelder, and beech. 

 Adults appear about May, or later, and are given to sitting 

 on tree trunks where they are somewhat difficult to see on 

 account of their dull metallic brown color and roughened 

 elytra. When flying, the bright metallic greenish-blue 

 abdomen is quite conspicuous. The young larvae make 

 shallow galleries in the sapwood, but as they get older 

 they form somewhat dilated, irregular, flattened burrows 

 in the heartwood, where they hibernate. In the spring 

 they excavate a pupal-cell near the surface, completing the 

 life-history in one year. 



Dicerca 



The larva of this species bores in peach, 

 cherry, beech, maple, and other deciduous 



rfivarirata 



trees. The adult (Plate LXXVIII) is 

 coppery or brassy above; the size and the spreading tips 

 of the elytra, whence the specific name, help to identify it. 

 The males have a little tooth on the under side of each 

 middle femur. 



Small Fruits 



The Red-necked Cane-borer causes the 



Agrilus swellings, usually with numerous slits, 



ruficollis 11 j IT 



which have been called gouty galls, on 



raspberry and blackberry. Adults emerge in May and 

 June; they are not over .3 in. long; head short but wide, 

 black; pronotum coppery-red; elytra bronzy-black. "The 

 young larva enters the bark at the axil of a leaf-stem, and 

 eats around the stem in a long spiral. By early August 

 the galls commence to form where the bark has been 

 girdled, though sometimes no gall results from the injury, 

 and the larvae mine into the pith. The larvas probably 

 become practically full grown in the fall and remain in 

 their burrows over winter, in which they transform to 

 pupae in late April" (Sanderson). 



Coniferous Trees 



Buprestids are very fond of conifers and, although this 

 division is quite restricted botanically, relatively few 

 species (all occurring on pine) can be mentioned here. 



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