HYLASTES ATER. 



263 



Stein thinks its destructiveness over-rated, and Eichhoff that 

 it only does secondary damage. 



More information as to its habits is therefore called for. 

 The economic treatment of this species is the same as that of 

 T. typography*, L. 



Figs. 123 and 124. Burrows of If. pallialus, Gyll., in spruce bark. 



(Natural size.} 



a, j8 Characteristic mother- galleries. 7 Larval galleries. 



8 Mother-galleries where no larvae have been produced. 



2. Hylastes ater, Payk. 



a. Description. 



Beetle 4 to 5 mm. long, of slender build ; deep black, with 

 brownish -red antennae and tarsi. Thorax much longer than 



