FAMILY BUPRESTID.£. 85 



B. Margin without scrratnris. 



BuPREsTis DivAuicATA (Say). Cherry tr ee Bvprcstis. (Plater, lig4 ) 



Convex ; greenish cuiirouus ahove, i>iu-i>lish ami metallic beneath, confluently punctured 

 above and beneath. Elytra attenuate, divaricate or divergent at their tips : thorax 

 indented before the scutel ; scutel small and indented : elytra marked with lines and 

 with abbreviated elevations ; tips narrowed and prolonged ljcy< nd the abdomen, and 

 truncate and submucronatc on the inner side. Length seven-tentlis of an incl!. 

 According to Say, it resembles the lurida of Fabkicu s in general apixarance. 



BupREsTis LURIDA (Fab.). 

 Above dull la-assy ; beneath brassy with piupli>h hues and liright, confluently punctured 

 above and beneath. Mandibles black : eyes dark brown or black : thorax dilated 

 before its middle, coarsely sculptured, and impressed with grooves rather than lines. 

 Elytra coarsely scul]'tured, marked with wider ablneviated Lines, and connected by 

 branching ridges; behind they are slightly attenuate, j>rojccting just beyond the 

 pointed abdomen, and terminated with two submucronatc points. 

 This species tliiiers from the former, in being destitute of lines, having fewer confluent 

 punctures, coarseness of the mai-kings, less attenuated tips of the elytra, and their ter- 

 mination in two short spines instead of one. The larva is described by Mr. Harris as 

 destructive to the pignut hickory : it is of a yellowish white ; long, narrow, depressed 

 in form, and abruptly widened at the anterior extremity : head brown, small, and deeply 

 sunk in the forepart of the first segment; jaws three-toothed, black : no legs, nor sub- 

 stitutes except two small warts on the underside of the second segment of the thorax. 



These grubs exist in the wood and beneath the bark. S(ini<tiin<-; in great numbi r* : th<' 

 pupa resembles the perfect insect. 



Agrilus rcficollis, a member of the Family Bvprestid,^, was described by Professor 

 Haldeman in the American Quarterly Jom-nal of Agriculture and Science, Vol. iv, p. 200, 

 fig. 1, as follows : 'This little insect, so hurtful to the raspberry, is about three lines long; 

 black, minutely punctured, thorax and front brassy ; front with a vertical impression ; 

 a wide shallow impression across the thorax posteriorly, and another at the base of the 

 elytra. In this particular case, the knowledge of the appearance of the insect is not es- 

 sential, as far as the means of preventing its depredations are concerned, although it is 

 always interesting to know whence an injury proceeds. 



' In its larva state, Agrilus riificolli.t lives at the expense of the cultivated Rtibus (rasp- 

 berry), in the heart of which the pupa may be found in the month of May, the imago 

 appearing in June. The larva bores between the wood and bark, injuring the plant, and 

 causing a wide unsightly excrescence : it next penetrates to the pith, which it traverses 

 for two or three feet, finally excavating a cavity in which it undergoes its transformations.' 



