Gillian W. Watson

Gillian W. Watson, U.S. entomologist.

Plant Pest Diagnostic Center, California Department of Food and Agriculture, 3294 Meadowview Road, Sacramento CA 95832, Sacramento, California, U.S.A.

Taxon names authored

(List may be incomplete)

(List may be incomplete)

Williams, D.J. & Watson, G.W. 1988. The Scale Insects of the Tropical South Pacific Region. Pt. 1. The Armoured Scales (Diaspididae). CAB International Wallingford, U.K. 290 pp. Reference page.

Mifsud, D., Mazzeo, G., Russo, A. & Watson, G.W. 2014. The scale insects (Hemiptera: Coccoidea) of the Maltese Archipelago. Zootaxa 3866(4): 499–525. DOI: 10.11646/zootaxa.3866.4.3 Reference page.

Sartiami, D., Watson, G.W., Mohamad Roff M.N., Mohd Hanifah Y. & Idris, A.B. 2015: First record of cassava mealybug, Phenacoccus manihoti (Hemiptera: Pseudococcidae), in Malaysia. Zootaxa 3957(2): 235–238. DOI: 10.11646/zootaxa.3957.2.8. Preview (PDF) Reference page.
Watson, G.W. 2015. Unaspis lansivora sp. n. (Hemiptera: Diaspididae), a new pest of Lansium domesticum (Meliaceae), and a key to Unaspis species. Zootaxa 3905(3): 432–440. DOI: 10.11646/zootaxa.3905.3.9 Reference page.
Watson, G.W. 2015: Synonymy in the armoured scale insect genus Unaspis MacGillivray (Hemiptera: Coccomorpha: Diaspididae). Zootaxa 3980(3): 450–450. DOI: 10.11646/zootaxa.3980.3.10. Full article (PDF) Reference page.
Watson, G.W., Williams, D.J. & Miller, D.R. 2015. The identity and distribution of Fiorinia phantasma (Cockerell & Robinson) (Hemiptera: Coccomorpha: Diaspididae), with a new synonym. Zootaxa 4048(2): 291–300. DOI: 10.11646/zootaxa.4048.2.9. Preview (PDF) Reference page.

Chatzidimitriou, E., Simonato, M., Watson, G.W., Martinez-Sañudo, I., Tanaka, H., Zhao, J. & Pellizzari, G. 2016. Are Phenacoccus solani Ferris and P. defectus Ferris (Hemiptera: Pseudococcidae) distinct species? Zootaxa 4093(4): 539–551. DOI: 10.11646/zootaxa.4093.4.5.Reference page.
von Ellenrieder, N. & Watson, G. 2016. A new mealybug in the genus Pseudococcus Westwood (Hemiptera: Coccomorpha: Pseudococcidae) from North America, with a key to species of Pseudococcus from the New World. Zootaxa 4105(1): 65–87. DOI: 10.11646/zootaxa.4105.1.3. Reference page.
von Ellenrieder, N., Watson, G.W., Kimnee, S.A., Franco, J.C. & Mazzeo, G. 2016. Paracoccus leucadendri Mazzeo & Franco in Mazzeo, Franco & Russo, 2009, a junior synonym of Paracoccus hakeae (Williams, 1985) comb. nov. (Coccomorpha: Pseudococcidae). Zootaxa 4093(4): 552–558. DOI: 10.11646/zootaxa.4093.4.6.Reference page.

von Ellenrieder, N., Watson, G.W. & Kinnee, S.A. 2018. Identification of Nipaecoccus (Hemiptera: Coccomorpha: Pseudococcidae) species in the United States, with descriptions of Nipaecoccus bromelicola sp. n. and the male of N. floridensis Beardsley. Zootaxa 4444(2): 163–178. DOI: 10.11646/zootaxa.4444.2.5 Reference page.

von Ellenrieder, N. & Watson, G.W. 2019. A revision of the mealybug genus Scaptococcus McKenzie (Hemiptera: Coccomorpha: Pseudococcidae), with descriptions of the adult male and female of Scaptococcus occultans sp. n. from the southwestern United States, and the male of S. milleri McKenzie. Zootaxa 4554(2): 386–400. DOI: 10.11646/zootaxa.4554.2.4 Reference page.

Joshi, S., Pai, S.G., Deepthy, K.B., Ballal, C.R. & Watson, G.W. 2020. The cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Coccomorpha: Pseudococcidae) arrives in India. Zootaxa 4772(1): 191–194. DOI: 10.11646/zootaxa.4772.1.8 Reference page.
Nucifora, S., Watson, G.W., Russo, A. & Mazzeo, G. 2020. Description of Diaspidiotus aetnensis sp. n. (Hemiptera: Coccomorpha: Diaspididae) living on endemic birch in Sicily (Italy), with a key to Diaspidiotus species recorded on Betulaceae. Zootaxa 4759(4): 584–590. DOI: 10.11646/zootaxa.4759.4.9 Reference page.

Zarkani, A., Watson, G.W. & Kaydan, M.B. 2024. A new species in the mealybug genus Pseudococcus Westwood (Hemiptera: Coccomorpha: Pseudococcidae) from Indonesia. Zootaxa 5555(4): 590–598. DOI: 10.11646/zootaxa.5555.4.6 Reference page.

Deng, M., Watson, G.W. & Xing, J-C. 2025. Description of a new species of Marsipococcus Cockerell & Bueker (Hemiptera: Coccomorpha: Coccidae) from China, with a key to all the species. Zootaxa 5588(2): 351–362. DOI: 10.11646/zootaxa.5588.2.9 Reference page.