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List of works by Douglas John Williams

A new species of the Neotropical scale insect genus Laurencella Foldi, 1995, from Guyana (Hemiptera, Coccoidea, Monophlebidae, Llaveiini) ⬇️

scientific article

Doubling the known endemic species diversity of New Caledonian armored scale insects (Hemiptera, Diaspididae)

article

Five new species of the armored scale genus Andaspis MacGillivray (Hemiptera, Coccomorpha, Diaspididae) from New Caledonia

scientific article

Mealybug species of the genus Paraputo Laing, with nomenclatural changes in some species hitherto assigned to the genus Cataenococcus Ferris (Hemiptera, Coccoidea, Pseudococcidae) ⬇️

scientific article

Recent outbreaks of mealybugs on plantain (Musa spp.) in Nigeria including a new record for Africa and a description of a new species of Planococcus Ferris (Homoptera, Pseudococcidae) ⬇️

Some new locality records of scale insects (Hemiptera, Sternorryncha, Coccoidea) ⬇️

Some nomenclatural notes on scale insects (Hemiptera, Coccoidea) ⬇️

scientific article

Taxonomic status of Villigera Karsch, 1877 (Hem. Coccoidea, Margarodidae) ⬇️

scientific article

The identity of Aspidiotus guianensis Lindinger, 1957 (Hem., Coccoidea, Diaspididae) ⬇️

scientific article

The mealybug Planococcus lilacinus (Cockerell) in Africa (Hemiptera, Coccoidea, Pseudococcidae) ⬇️

scientific article

The mealybug Trionymus angustifrons Hall transferred to Dysmicoccus Ferris with new synonymy (Hemiptera, Sternorrhyncha, Coccomorpha, Pseudococcidae) ⬇️

scientific article

The original slide preparations of the armoured scale insect Diaspis coccois Lichtenstein and designation of a lectotype (Hemiptera, Coccoidea, Diaspididae) ⬇️

article by D. Matile-Ferrero et al published 2007 in Bulletin de la Société Entomologique de France

What is Coccus limonii Murray, 1871 (Hem. Coccoidea, Diaspididae) ? ⬇️

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