The Psyllids (Homoptera: Psylloida) of Alaska

摘要

AbstractA key is provided for the identification of the thirty‐eight psyllid species recorded from Alaska. Additional notes on host plant and distribution are given for each species. The species are:Aphalara manitobaensisCald.,A.nigraCald.,Craspedolepta alaskensis(Ash.),C.nebulosa(Zett.) ssp.kincaidi(Ash.), C.schwarzi(Ash.),C.subpunctata(Förster),Psylla alaskensisAsh.,P.betulaenanaeOss.,P.breviataPatch,P.fibulataCrawf.,P.floccosaPatch,P.galeaformisPatch,P.haliaeetisp.nov.,P.hamataTuthill,P.highwoodensissp.nov.,P.jensenisp.nov.,P.kananaskensisHod.,P.lediFlor.,P.longiforcepssp.nov.,P.minorCrawf.,P.macleanisp.nov.,P.myrtilliWag. ssp.canadensisHod.,P.palmeniLöw,P.phlebophyllaesp.nov.,P.raraTuthill,P.rufipennissp.nov.,P.sinuataCrawf.,P.striataPatch,P.stricklandiCrawf.,P.toolikensissp.nov.,P.zaeceviSulc,Trioza albifronsCrawf.,Trioza articasp.nov.,T.atkasookensissp.nov.,T.incertaTuthill,T.salicivoraReut. (=T.mauraauctt. N.Amer.),T.styliferaPatch,Triozasp.nov. (undescribed). All the newly described species were collected onSalix.The Alaskan fauna is made up of four major components: 1, true Arctic species; 2, Arctic/subarctic species; 3, subarctic/alpine species; 4, northern forest zone species. Eight of the Alaskan psyllids exhibit an holarctic distribution and there is a strong faunal affinity with similar areas in northern Scandinavia: the same four genera recur throughout the northern holarctic. There is strong circumstantial evidence that certain psyllid species are parthogenetic over part of their range, particularly in arctic/alpine situati