PINE BORERS. 685 



16. Drummond's buprestis. 

 Melanophila drummondi Kirby. 



This species, with Buprestis rusticorum, and Chrysobothris trinervia, 

 we have collected in the pine timber of the mountains of 

 Utah in the American Fork Caiion, late in July, and it is 

 probable that all will be found to inhabit the trunks of 

 coniferous trees. It also inhabits Oregon and Washing- 

 ton as well as Alaska and New Mexico. (Santa Fe, Snow.) 

 Le Conte describes it as being densely punctured, sha- 

 greened, with shining, metallic colors, especially on the 



^u ■4.U ^.u u ■ I ^ 11 / .1 ^ FiG.225.-Drum- 



prothorax, with three bright yellow spots on the poste- monds Me- 

 rior two-thirds of each wing-cover, the anterior spot being ia7iophiia.— 

 the larger. Length, 0.40 inch. - FromPackrd. 



17. The pitted buprestis. 



Dicerca punctulata Schouherr. 



Occurring mostly upon the pitch pine {Pinus rigida), an obscure coppery or black 

 beetle, half an inch long, convex above with the tips of its vring-covers tapering, 

 and this narrowed portion more lengthened than in any of the foregoing species, their 

 surface occupied with close fine punctures and double rows of coarse ones, the nar- 

 row spaces between these rows often elevated in places, the elevations forming smooth 

 oblong spots or irregularly interrupted ribs ; the thorax with coarser confluent punct- 

 ures and with four elevated smooth stripes, the outer ones narrower and interrupted 

 by a slight depression in the surface back of their middle; and finally, a smooth 

 transverse elevation upon its front, extending from one eye to the other, is a mark 

 whereby this species may be readily distinguished from most of those related to it. 

 (Fitch.) 



I have found a dead beetle under the bark of the pitch pine in the 

 same stump with Buprestis lineata in May, 1881, at Providence, R. 1. 



18. The tuberculated buprestis. 

 Dicerca tuberculata Laporte. 



This is another beetle which is met with upon the pitch pine, and 

 resembles an individual of the preceeding species of a more brassy 

 tint and having all its marks more coarse, rough, and irregular ; but 

 the rows of coarse punctures on its wing-covers are at equal distances 

 from each other instead of being in pairs, the intervening spaces hav- 

 ing many irregular elevated black polished spots,and the elevated trans- 

 verse line upon the front is interrupted and less prominent, and its size 

 is rather larger, being about 0.60 inch long. (Fitch.) 



19. The pine dicerca. 



Dicerca tenebroaa Kirby. 



Mining under the bark of the white pine, the beetle occurring in October. (G. 

 Hunt.) 



Le Conte describes this beetle as follows : 



Ashy bronze or obscurely bronze, the prothorax dilated on the sides, which are 

 rounded in front, sinuous behind, coarsely punctured ; behind broadly excavated on 

 each side, with apical and basal shining smooth rugosities ; a definite dorsal deep 



