Williams, D.J.M.
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Casey’s conundrum, a review of the genus Semanotus Mulsant(Coleoptera: Cerambycidae: Cerambycinae: Callidiini) in North America
Hammond, H.E.J.; Williams, D.J.M.
Year: 2013
Catalog ID: 34814
Issued by: Northern Forestry Centre
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Scientific note: Nomenclatural change for a species of Callimoxys Kraatz (Coleoptera: Cerambycidae) in North America.
Hammond, H.E.J.; Williams, D.J.M.
Year: 2012
Catalog ID: 33831
Issued by: Northern Forestry Centre
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A revision of the Genus Callimoxys Kraatz (Coleoptera: Cerambycidae) in America north of Mexico and review of world species.
Hammond, H.E.J.; Williams, D.J.M.
Year: 2011
Catalog ID: 32948
Issued by: Northern Forestry Centre
Availability: PDF (request by e-mail)
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Distribution, species composition, and incidence of egg parasitoids of the forest tent caterpillar (Lepidoptera: Lasiocampidae), during a widespread outbreak in the Canadian prairies.
Williams, D.J.M.; Langor, D.W.
Year: 2011
Catalog ID: 32678
Issued by: Northern Forestry Centre
Availability: PDF (request by e-mail)
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Description of mature larvae of Pissodes yunnanensis Langor and Zhang and Pissodes punctatus Langor and Zhang (Coleoptera: Curculionidae) from China.
Williams, D.J.M.; Langor, D.W.
Year: 2011
Catalog ID: 32604
Issued by: Northern Forestry Centre
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Tenthrède épineuse du frêne (dépliant).
Year: 2010
Catalog ID: 31783
Issued by: Northern Forestry Centre
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Spiny ash sawfly (leaflet).
Year: 2010
Catalog ID: 31782
Issued by: Northern Forestry Centre
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Current status of invasive alien birch-leafmining sawflies (Hymenoptera: Tenthredinidae) in Canada, with keys to species
Digweed, S.C.; MacQuarrie, C.J.K.; Langor, D.W.; Williams, D.J.M.; Spence, J.R.; Nystrom, K.L.; Morneau, L.
Year: 2009
Catalog ID: 29615
Issued by: Northern Forestry Centre
Availability: PDF (request by e-mail)
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Biology of the spiny ash sawfly, Eupareophora parca (Hymenoptera: Tenthredinidae: Blennocampinae), in Edmonton, Alberta.
Year: 2007
Catalog ID: 26749
Issued by: Northern Forestry Centre
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Spruce beetle (Coleoptera: Scolytidae) parasitoids: cephalic morphology of larvae and a key to species (Hymenoptera: Braconidae, Pteromalidae).
Wesley, J.; Williams, D.J.M.; Langor, D.W.; Spence, J.R.
Year: 2006
Catalog ID: 26038
Issued by: Northern Forestry Centre
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Revision of the genus Pseudognaptodon Fischer (Hymenoptera: Braconidae: Gnamptodontinae)
Year: 2004
Catalog ID: 24442
Issued by: Northern Forestry Centre
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Rearing, identification, and biology of parasitoids and predators associated with Pissodes weevils in Canada
Williams, D.J.M.; Langor, D.W.
Year: 2002
Catalog ID: 21337
Issued by: Northern Forestry Centre
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Morphometric study of the Pissodes strobi complex (Coleoptera: Curculionidae).
Williams, D.J.M.; Langor, D.W.
Year: 2002
Catalog ID: 20538
Issued by: Northern Forestry Centre
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Description of mature larvae of the four species of the Pissodes strobi complex (Coleoptera: Curculionidae).
Williams, D.J.M.; Langor, D.W.
Year: 2002
Catalog ID: 20373
Issued by: Northern Forestry Centre
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Establishment and spread of two introduced parasitoids (Ichneumonidae) of the birch leafminer, Fenusa pusilla (Tenthredinidae).
Langor, D.W.; Digweed, S.C.; Williams, D.J.M.; Spence, J.R.; Saunders, C.
Year: 2000
Catalog ID: 18187
Issued by: Northern Forestry Centre
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Life cyle and mortality of Pissodes Terminalis (Coleoptera: Curculionidae) in lodgepole pine
Langor, D.W.; Williams, D.J.M.
Year: 1998
Catalog ID: 18780
Issued by: Northern Forestry Centre
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Sampling and identification of forest tent caterpillar parasitoids in the prairie provinces
Williams, D.J.M.; Parry, D.; Langor, D.W.
Year: 1996
Catalog ID: 12149
Issued by: Northern Forestry Centre
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Rearing parasitoids of spruce budworm from northern Alberta
Year: 1994
Catalog ID: 12148
Issued by: Northern Forestry Centre
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Major forest insect pests: 1991 conditions and 1992 predictions
Year: 1991
Catalog ID: 20968
Issued by: Northern Forestry Centre
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The new world genus Lathrapanteles n. gen.: phylogeny and placement in the microgastrinae (Hymenoptera: Braconidae: Cotesiini)
Year: 1985
Catalog ID: 20404
Issued by: Northern Forestry Centre
Availability: PDF (request by e-mail)