Koponen, M.; Askew, R.R. 2002, Chalcids from Madeira, Canary Islands and Azores (Hymenoptera, Chalcidoidea). Vieraea (Folia Scientarum Biologicarum Canariensum)
30:126
[ Two unidentified species of Pteromalus Swederus recorded from the Canary Islands, one cited as Pteromalus cf alternipes Walker and the other as near elevatus Walker. ]
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