INSECTS. COLEOPTERA. 4. Boflrichus. 87 



Inhabits Europe and America, under the bark of trees, efpecially 

 of the fir kind, where it gnaws a deep channel with numerous 

 lateral and nearly parallel ones : varies in colour and fize. 



Lands, Black ; fhells retufe, indented : legs pitchy. 



Inhabits Germany, under the bark of the pinus larix* 



Chakogra- Black ; fhells indented, rufous. 

 pbus. Found under the bark of trees. 



Varies in its colour; fometimes black. 



Polygraphs Blackifh ; fhells glaucous, fomewhat obtufe. 

 Inhabits Europe. Herbji. Arch. tab. 20, Jig. 9. 



Monogra- Blackifh ; thorax rufous : fhells retufe and toothed at tjie tip,. 

 phus. Inhabits Germany : fmall, 



Body cylindric, flightly downy : legs reddifh, 



Micoogra- p errU gi nous : fhells entire, teflaceous. 

 r us * v Inhabits Europe, under trees ; fmall. 

 Front covered with lilvery down. 



*Scolytus. Smooth, blackifh : fhells truncate, entire : abdomen retufe : 

 front downy, afhy. 

 Geoffr.Inf. 1. tab. 5. jig. 5. 

 Inhabits England, in the bark of elm trees. 

 Shells ftriate, a little longer than the abdomen : abdomen retufe, 

 black. 



Crenatus. Smooth, black ; fhells entire with crenate ftrix. 

 Inhabits Germany : refembles theiaft. 

 Head and thorax naked : legs pitchy. 



Oleiperda. Downy, brown : fhells ftriate, grey : legs teflaceous. 

 Inhabits France, and is deftruclive to the olive tree. 



Qleoc.. Downy,- grey : club of the antennas elongated, yellowifh. 



Inhabits Southern France, in the olive tree. 



Pygmceus. Black, polifhed : fhells entire, rufous : abdomen retufe* 

 Inhabits Saxony : very fmajl. 



Ligniperda* Downy, blackifh : 4 hind-fhanks ferrate. 

 Inhabits Getmany : larger than B. piniperda. 

 Antenna teflaceous : faells ftriate, a little retufe at the tip : legs 

 fhort, teflaceous. 



Abietinus. Downy, black : fhells naked, pitchy. 



Inhabits Germany ; in the fir tree. 



VUlofus. Downy, pitchy: legs teflaceous. 



Inhabits Germany : half the lize of D. piniperda. 

 Body rough with reddiih hairs : jheils itriate, entire. 



Piniperda 



