INSECTS IXJUEIOUS TO CONIFERS. I 1 ,;; 



horse-shoe nail. Also other species of the same genus, C. 

 immaculata; C. llberta ; C. novaboracensis, etc., etc. 



" In May and Jnne, on the Pine and Spruce trees, the 

 Chrysobothris Harrisii and the Biqyrcstis aundenta ap- 

 pear, (the latter a beautiful green and bronzed beetle), the 

 larva? boring into the trunks of those trees. There is also 

 the Biqircstis fulvoguttata, and the Dicerea punctulata, 

 which particularly affect the Plnus rigida. The Bvpres- 

 ticlce are spindle-shaped insects, tapering most towards the 

 hind end, all more or less bronzed beneath ; and the larvae 

 of all of them very similar in shape, white fleshy worms 

 with small or rudimental feet, and a small black, or brown 

 glossy head. Monohammus notatus,^ 'Long-horned bee- 

 tle,' in the larva state, bores transversely into pine timber 

 at least, and is also found in decayed or dead parts of 

 standing and living trees. 



o o 



" The larvne of some of these ' Long-horns ' much resem- 



Zj 



ble those of the JBuprestans, only they are not so thick in 

 front, and do not narrow so suddenly into the nail, or tad- 

 pole-shape. Also the M. titillator, M. marmoratus, M, 

 scutellatus, etc. ; this last named species being more abund- 

 ant on the northern border of our State, (Pa.) 



" Among the Longicornia, infesting the different kinds 

 of pine, are also Eupogonius pinisora ; Leptostylus com- 

 mixtus ; Euderces piid ; CalUdlum antenuatum ; Hylo- 

 tritpes baguhis ; Orthosoma Pennsylvanica^ (a large, 

 long, brown beetle); Trttgosoma Harrisii; Hhag'nim 

 lineatum ; Tomicus xylographus, nigriealts, niger, et 

 fulvus, et cttligraphiis, etpini, et pusilh/s, et materiarius, 

 etc., etc. Then we have Hylurgus tenebrans ; Hylastis 

 pinifex, et carbonarius ; Hylobius pales, et picivoruc, 

 etc. All these insects, both in the larva? and perfect state, 

 affect the pines immediately under the bark, or in the 

 wood of the trunk and large limbs. 



"Affecting the twigs, is the Plssodcs strobi, a small, 

 black ' Curculio ' ; but then there are also species belong- 



