286 Wisconsin Academy of Sciences, Arts, and Letters. 
Chernies pini pineoides ClM)lodkovsky. 
Chermes pini pinicola Cholodkovsky. 
Chernies sihiricus Cholodkovsky. 
Chernies similis Gillette. 
Chernies stroMloHus Kaltenbach. 
Chernies tardus Dreyfus. 
Chernies viridanus Cholodkovsky. 
Chernies viridis lutescens Cholodkovsky. 
Gnaphalodes affinis Bdrner. 
Eulachnus macchiati Del Guercio. 
Lachnus ahietis Fitch. 
Lachnus aMetis Walker. 
Lachnus hogdanowi Mordwilko. 
Lachnus farinosus Cholodkovsky. 
Lachnus fusciata Burmeister. 
Lachnus flavus Mordwilko. 
Lachnus grossus Kaltenbach. 
Lachnus hyalinus Koch. 
Lachnus niacrocephalus Buckton. 
Lachnus piceae Panzer. 
Lachnus piceicola Cholodkovsky. 
Lachnus piceicola viridescens Cholodkovsky. 
Lachnus pinicola Kaltenbach. 
Macrosiphum piceaella Theobald. 
Mindarus ahietinus Koch. 
Myzaphis aHetina Walker. 
Pterochlorus roboris Linnaeus. 
Picea alba. 
Chernies aMetis Linnaeus. 
Chernies lapponicus Cholodkovsky. 
Chermes lapponicus praecox Cholodkovsky. 
Chernies pinifoliae Fitch. 
Chernies strobi Hartig. 
Chernies strobilobius Kaltenbach. 
Cehrnies viridanus Cholodkovsky. 
Lachnus abieticola Cholodkovsky. 
Lachnus abietis Fitch. 
Lachnus piceae Panzer. 
Myzaphis abietina Walker. 
Schizoneura obliqua Cholodkovsky. 
Picea canadensis=Tsuga canadensis? 
Chernies lariciatus Patch. 
Chernies similis Gillette. 
Chernies strobilobius Kaltenbach. 
Lachnus abietis Fitch. 
Minarus abietinus Koch. 
Schizoneura obliqua Cholodkovsky. 
