BUPRESTID^E. 



Chalcophora virginiensis is one of our largest Buprestids, 

 attaining a length of I or i .25 inches. Much larger Bupres- 

 tids occur in the tropics, the family home, and many of 

 them are brilliantly colored. In this genus the hind tarsi 

 have the first joint elongated and the males have a distinct 

 sixth ventral segment. This species is dull black, feebly 

 bronzed, the impressions of the thorax and elytra often 

 brassy; head with a deep, median groove, which is broader 

 and deeper in front; pronotum one-third wider than long, 

 sides rounded on apical third, disk with a broad median 

 impression and two others each side, in the regions of the 

 front and hind angles; elytra each with four to six elongate 

 impressed spaces which are finely and rather densely 

 punctate. 



Buprestis lineata is .5 in. or more, long. Each elytron 

 has, typically, two longitudinal, yellowish stripes. The 

 general color, above, is metallic black; beneath, dull 

 bronze; head and prosternum, yellowish. 



Buprestis ultramarina is about .5 in. long; brilliant green 

 with the sutural and outer margins of the elytra coppery 

 red. 



Dicerca punctulata is superficially much like D. divaricata 

 (p. 312) but smaller (about .5 in.), and has a pair of promi- 

 nent, shining, longitudinal ridges on the middle of the pro- 

 notum and parts of a second pair outside of these. 



Melanophila acuminate (also called longipes] is often 

 nearly .5 in. long and all black. It is found on various 

 conifers. M. fulvoguttata is about the same size, and 

 has three yellow dots on each elytron; found on spruce and 

 hemlock. M. (zneola is rarely longer than .25 in.; prono- 

 tum bronzy; elytra metallic black. 



The males of Chrysobothris floricola have a single, acute 

 tooth on each front tibia; those of dentipes have none, but 

 the tibiae are dilated at the tip (those of femorata, p. 310, 

 have numerous fine teeth on the inner edge). 



Deciduous Forest Trees 



The following are among the more easily recognized : 

 Buprestis fasciata about .6 in. long; brilliant metallic 

 green, often with blue iridescence; a wavy yellow band 



313 



