Two distinct morphs in the wood ant Formica polyctena in Finland: a result of hybridization?

samples from Finland may repre-senttwodifferenttypesbasedonqueenmorphology.However,workercastehasnotbeenstudiedcompletely.Ifoundthathairinessofworkersfromdifferentcol -onies was bimodally distributed. Morphs (based on bimodality) differed in theabundanceoferecthairsoneightoutof11studiedbodyparts.Thehairiermorphmay be result of incomplete reproductive isolation between closely related spe-cies.

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