Skip to main content Skip to main navigation menu Skip to site footer
Type: Editorial
Published: 2024-06-13
Page range: 401-415
Abstract views: 9
PDF downloaded: 4

Douglas J. Williams at 100—an appreciation

Florida State Collection of Arthropods; Department of Plant Industry; Gainesville; Florida; U.S.A.
Division of Ecology & Evolution; Research School of Biology; Australian National University; Acton; Canberra; A.C.T. 2600; Australia
Department of Biodiversity and Biological Systematics; The National Museum of Wales; Cardiff; CF10 3NP; U.K.
Research Associate; Florida State Collection of Arthropods; Division of Plant Industry; 1191 SW 34th St.; Gainesville FL 32614; Retired Research Entomologist; Systematic Entomology Laboratory; Agricultural Research Service; USDA; Rm. 328; Bldg. 003; Beltsville; MD 20705; U.S.A.
Division of Life Sciences; Natural History Museum; Cromwell Road; London SW7 5BD; U.K.
Douglas J. Williams Hemiptera


  1. Borchsenius, N.S. & Williams, D.J. (1963) [Scale insects of the genus Contigaspis MacGillivray (Homoptera, Coccoidea) of the world fauna.] Entomologicheskoe Obozrenye, 42, 594‒610. [In Russian]
  2. Burns, A., Gleadow , R., Cliff , J., Zacarias, A. & Cavagnaro, T. (2010) Cassava: the drought, war and famine crop in a changing world. Sustainability, 2 (11), 3572–3607.
  3. FAO (2024) FAO regional office for Africa. News. Available from: (accessed 12 April 2024)
  4. Favret, C., Ouvrard, D. & Williams, D.J. (2014) Annotated list of the species-group taxa described in combination with Chermes Linnaeus 1758 (Hemiptera: Sternorrhyncha). Transactions of the American Entomological Society, 140, 67–81.
  5. Hodgson, C.J. (1994) The Scale Insect Family Coccidae. An identification manual to genera. CAB International, Wallingford, 639 pp.
  6. Hodgson, C.J. & Williams, D.J. (2016) A revision of the family Cerococcidae Balachowsky (Hemiptera: Sternorrhyncha, Coccomorpha) with particular reference to species from the Afrotropical, western Palaearctic and western Oriental Regions, with the revival of Antecerococcus Green and description of a new genus and fifteen new species, and with ten new synonomies. Zootaxa, 4091 (1), 1‒175.
  7. Hodgson, C.J. & Williams, D.J. (2018) Revision of the soft scale genus Paralecanium (Hemiptera: Coccomorpha: Coccidae) with the introduction of three new genera and twenty new species. Zootaxa, 4443 (1), 1–162.
  8. Matile-Ferrero, D. (1977) Une cochenille nouvelle nuisible au manioc en Afrique Équatoriale, Phenacoccus manihoti n. sp. (Hom., Coccoidea, Pseudococcidae). Annales de la Société entomologique de France, 13, 145‒152.
  9. Miller, D.R. & Watson, G.W. (1995) Douglas J. Williams, the modern guru of coccidology. Israel Journal of Entomology, 29, 1–4.
  10. Miller, D.R. & Williams, D.J. (1995) Systematic revision of the family Micrococcidae (Homoptera: Coccoidea) with a discussion of its relationships and a description of a gynandromorph. Bollettino del Laboratorio di Entomologia Agraria ‘Filippo Silvestri’. Portici, 50 (1993), 199–247.
  11. Miller, D.R., Williams, D.J. & Hamon, A.B. (2001) Notes on a new mealybug (Hemiptera: Coccoidea: Pseudococcidae) pest in Florida and the Caribbean: the papaya mealybug, Paracoccus marginatus Williams and Granara de Willink. Insecta Mundi, 13 (1999-3/4), 179‒181.
  12. Neuenschwander, P. (2003) 3. Biological control of cassava and mango mealybugs in Africa. In: Neuenschwander, P., Borgemeister, C. & Langewald, J. (Eds.), Biological Control in IPM Systems in Africa. CAB International, Wallingford, pp. 45–59.
  13. Pellizzari, G. & Williams, D.J. (2013) Simple rules on adjectival endings in zoological nomenclature and their use in scale insect names (Hemiptera: Sternorrhyncha: Coccoidea), with some corrections to combinations in common use. Zootaxa, 3710 (5), 401‒414.
  14. Watson, G.W. (2019) Paracoccus marginatus. CABI Invasive Species Compendium datasheet. Available from: (accessed 4 June 2024)
  15. Williams, D.J. (1958a) Mealybugs (Pseudococcidae: Homoptera) described by W.M. Maskell, R. Newstead, T.D.A. Cockerell and E.E. Green from the Ethiopian region. Bulletin of the British Museum (Natural History) Entomology, 6, 205‒236.
  16. Williams, D.J. (1958b) The mealybugs (Pseudococcidae-Homoptera) described by W.J. Hall, F. Laing and A.H. Strickland from the Ethiopian region. Bulletin of the British Museum (Natural History) Entomology, 7, 1–37.
  17. Williams, D.J. (1963) Synoptic revisions of I. Lindingaspis and II. Andaspis with two new allied genera (Hemiptera: Coccoidea). Bulletin of the British Museum (Natural History) Entomology, 15, 1‒31.
  19. Williams, D.J. (1985) Australian mealybugs. British Museum (Natural History), London, 431 pp.
  20. Williams, D.J. (1986) Rastrococcus invadens sp. n. (Hemiptera: Pseudococcidae) introduced from the Oriental Region to West Africa and causing damage to mango, citrus and other trees. Bulletin of Entomological Research, 76, 695‒699.
  21. Williams, D.J. (1989) The mealybug genus Rastrococcus Ferris (Hemiptera: Pseudococcidae). Systematic Entomology, 14 (4), 433‒486.
  22. Williams, D.J. (2001) Rhizoecus Künckel d'Herculais, from Chiang Mai province, Thailand (Hemiptera, Pseudococcidae). Revue Française d'Entomologie, 23 (1), 15‒18.
  23. Williams, D.J. (2004) Mealybugs of southern Asia. The Natural History Museum, Southdene SDN. BHD., Kuala Lumpur, 896 pp.
  24. Williams, D.J. (2007) Carl Linnaeus and his scale insects (Hemiptera: Coccoidea). Zootaxa, 1668 (1), 427‒490.
  25. Williams, D.J. (2011) Some words used in scale insect names (Hemiptera: Sternorrhyncha: Coccoidea). Zootaxa, 3087 (1), 66‒68.
  26. Williams, D.J. & Denno, B.D. (2024) New genus names, family-group names and misspellings published between 2020 and 2023 in the scale insects (Hemiptera: Sternorrhyncha: Coccomorpha). Zootaxa, 5415 (2), 347–350.
  27. Williams, D.J. & Granara de Willink, M.C. (1992) Mealybugs of Central and South America. CAB International, Wallingford, 635 pp.
  28. Williams, D.J. & Pellizzari, G. (1997) Two species of mealybugs (Homoptera Pseudococcidae) on the roots of Aloaceae in greenhouses in England and Italy. Bollettino di Zoologia Agraria e di Bachicoltura, Milano, Series II, 29, 157‒166.
  29. Williams, D.J. & Pellizzari, G. (2014) Latin abbreviations and words used in scale insect literature (Hemiptera: Sternorrhyncha: Coccoidea). Zootaxa, 3785 (3), 497‒500.
  30. Williams, D.J. & Watson, G.W. (1988a) The Scale Insects of the Tropical South Pacific Region, Part 1. The armoured scales (Diaspididae). CAB International, Wallingford, 290 pp.
  31. Williams, D.J. & Watson, G.W. (1988b) The Scale Insects of the Tropical South Pacific Region, Part 2. The mealybugs (Pseudococcidae). CAB International, Wallingford, 262 pp.
  32. Williams, D.J. & Watson, G.W. (1990) The Scale Insects of the Tropical South Pacific Region, Part 3. The soft scales (Coccidae) and other families. CAB International, Wallingford, 267 pp.