Universal Chalcidoidea Database

Distribution references

Records of Roptrocerus xylophagorum Ratzeburg, 1844 in Canada-Newfoundland:

Records 1 - 2 of 2
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Langor, D.W. 1991, Arthropods and nematodes co-occurring with eastern larch beetle, Dendroctonus simplex (Col.: Scolytidae), in Newfoundland. Entomophaga 36(2):303-313    
Langor, D.W.; Raske, A.G. 1988, Mortality factors and life tables of the eastern larch beetle, Dendroctonus simplex (Coleoptera: Scolytidae), in Newfoundland. Environmental Entomology 17(6):959-963