Universal Chalcidoidea Database

Distribution references

Records of Roptrocerus Ratzeburg, 1848 in United States of America:

Records 1 - 4 of 4
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Garrido Torres, A.M.; Nieves-Aldrey, J.L. 1999, Pteromalids from the Autonomus Community of Madrid (CAM) (Spain): faunistics and catalogue (Hymenoptera: Chalcidoidea: Pteromalidae). Graellsia 55:32    
Otvos, I.S. 1965, Studies on avian predators of Dendroctonus brevicomis LeConte (Coleoptera: Scolytidae) with special reference to Picidae. Canadian Entomologist 97(11):1184-1199    
Stephen, F.M.; Browne, L.E. 2000, Application of EliminadeTM parasitoid food to boles and crowns of pines (Pinaceae) infested with Dendroctonus frontalis (Coleoptera: Scolytidae). Canadian Entomologist 132(6):983-985    
Thompson, W.R. 1958, A catalogue of the parasites and predators of insect pests. Section 2. Host parasite catalogue, Part 5. pp.606 Commonwealth Agricultural Bureaux, Commonwealth Institute of Biological Control, Ottawa, Ontario, Canada