Valid Names Results

Diaspidiotus juglansregiae (Comstock, 1881) (Diaspididae: Diaspidiotus)

Nomenclatural History

• Aspidiotus juglans-regiae Comstock 1881a: 300. Type data: U.S.A.: California, Los Angeles, on bark of the larger limbs of English walnut, Juglans regia.. Syntypes, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name Illustr.
• Aspidiotus juglans-regiae albus Cockerell 1894g: 132. Type data: U.S.A.: New Mexico, Mesila, on bark of pear trees.. Syntypes, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; junior synonym (discovered by Ferris1938a, 190).
• Aspidiotus juglans-regiae pruni Cockerell 1894g: 131. Type data: U.S.A.: New Mexico, Las Cruses, on twigs of plum.. Syntypes, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; junior synonym (discovered by Ferris1941e, 47).
• Aspidiotus (Diaspidiotus) juglans-regiae Comstock, 1881; Cockerell 1897i: 21. change of combination
• Aspidiotus (Diaspidiotus) juglans-regiae pruni Cockerell, 1894; Cockerell 1897i: 21. change of combination
• Aspidiotus (Diaspidiotus) juglans-regiae albus Cockerell, 1894; Cockerell 1897i: 21. change of combination
• Aspidiotus iuglans-regiae Comstock, 1881; Leonardi 1897: 285. misspelling of species epithet
• Aspidiotus (Evaspidiotus) juglans-regiae Comstock, 1881; Leonardi 1898c: 40. change of combination
• Aspidiotus (Evaspidiotus) juglans-regiae albus Cockerell, 1894; Leonardi 1898c: 43. change of combination
• Aspidiotus (Evaspidiotus) juglans-regiae pruni Cockerell, 1894; Leonardi 1898c: 42. change of combination
• Aspidiotus fernaldi Cockerell 1898q: 323. Type data: U.S.A.: Massachusetts, Boston, Charlesbank Park, on Gleditschia triacanthos.. Syntypes, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; junior synonym (discovered by Borchs1966, 331).
• Aspidiotus iuglans-regiae Comstock, 1881; Leonardi 1898c: 40. misspelling of species epithet
• Aspidiotus (Evaspidiotus) iuglans-regiae albus Cockerell, 1894; Leonardi 1898c: 43. misspelling of species epithet
• Aspidiotus iuglans-regiae albus Cockerell, 1894; Leonardi 1898c: 43. misspelling of species epithet
• Aspidiotus iuglans-regiae pruni Cockerell, 1894; Leonardi 1898c: 42. misspelling of species epithet
• Aspidiotus fernaldi albiventer Hunter 1899: 6. Type data: USA: Kansas, Lawrence, on trunk of maple.. Syntypes, female, Type depository: Manhattan: Kansas State University Collections, Kansas, USA; Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; junior synonym (discovered by Ferris1938a, 190).
• Aspidiotus fernaldi cockerelli Parrott 1899: 10. Type data: U.S.A.: Kansas, Manhattan, on the rough bark on trunk of maples; collected September 18, 1898.. Syntypes, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; junior synonym (discovered by Borchs1966, 331). Illustr.
• Aspidiotus (Diaspidiotus) glanduliferus Cockerell 1902l: 287. Type data: USA: Ohio, on Pinus sylvestris.. Syntypes, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; junior synonym (discovered by Borchs1966, 331).
• Aspidiotus glanduliferus Cockerell, 1902; Fernald 1903b: 260. change of combination
• Diaspidiotus juglans-regiae albus (Cockerell, 1894); Cockerell 1905b: 202. change of combination
• Diaspidiotus juglans-regiae pruni (Cockerell, 1894); Cockerell 1905b: 202. change of combination
• Aspidiotus glandulifer Cockerell, 1902; Lindinger 1907a: 20. emendation that is unjustified
• Aspidiotus juglandis-regiae Comstock, 1881; Lindinger 1907a: 22. emendation that is unjustified
• Furcaspis juglans-regiae (Comstock, 1881); MacGillivray 1921: 409. change of combination
• Furcaspis juglans-regiae pruni (Cockerell, 1894); MacGillivray 1921: 409. change of combination
• Quadraspidiotus fernaldi (Cockerell, 1898); MacGillivray 1921: 411. change of combination
• Quadraspidiotus glanduliferus (Cockerell, 1902); MacGillivray 1921: 411. change of combination
• Aspidiotus albus Cockerell, 1894; Ferris 1938a: 190. change in status (level)
• Aspidiotus albiventer Hunter, 1899; Ferris 1938a: 190. change of combination
• Quadraspidiotus juglans-regiae (Comstock, 1881); Ferris 1938a: 257. change of combination
• Aspidiotus cockerelli Ferris 1938a: 190. junior synonym (discovered by Borchs1966, 331).
• Aspidiotus pruni Cockerell, 1894; Ferris 1941e: 47. change in status (level)
• Aspidiotus (Quadraspidiotus) juglans-regiae Comstock, 1881; Merrill 1953: 23. change of combination
• Diaspidiotus juglans-regiae (Comstock, 1881); Bustshik 1958: 219. change of combination
• Diaspidiotus juglansregiae (Comstock, 1881); Borchsenius 1966: 331. emendation that is justified

Common Names

• English walnut scale Comsto1881a Dekle1965c Merril1953 MerrilCh1923
• english walnut scale Comsto1881a
• gopher scale MillerDa2005
• walnut scale McKenz1956 MillerDa2005

Ecological Associates

Hosts:

Families: 19 | Genera: 30

Foes:

Families: 6 | Genera: 12

Geographic Distribution

Keys

• NucifoWaRu2020: pp.589 ( Adult (F) ) [Diaspidiotus on Betulaceae]
• MillerDa2005: pp.29-34 ( Adult (F) ) [Field Key to Economic Armored Scales]
• Gill1997: pp.243 ( Adult (F) ) [Species of California]
• Koszta1996: pp.575 ( Adult (F) ) [Northeastern North America]
• McDani1970: pp.429 ( Adult (F) ) [U.S.A.: Texas]
• McKenz1956: pp.26 ( Adult (F) ) [U.S.A.: California]
• Ferris1942: pp.40 ( Adult (F) ) [North America]
• Britto1923: pp.371 ( Adult (F) ) [U.S.A.: Connecticut]
• Hollin1923: pp.7-8 ( Adult (F) ) [U.S.A.: Missouri]
• Lawson1917: pp.217 ( Adult (F) ) [U.S.A.: Kansas]
• DietzMo1916a: pp.289-290 ( Adult (F) ) [U.S.A.: Indiana]
• Cocker1905b: pp.202 ( Adult (F) ) [U.S.A.: Colorado]
• Newell1899: pp.4-5 ( Adult (F) ) [North America]
• Comsto1883: pp.55-57 ( Adult (F) ) [North America]

Remarks

• Structure: Female scale circular, 3 mm in diameter; flat, with exuviae laterad of center; pale greyish brown; exuviae covered with secretion; position of first skin indicated by pink or reddish brown prominence; ventral scale a mere film which adheres to bark (Comstock, 1881a). Colour photograph by Gill (1997).
• Biology: Occurring on the bark (Ferris, 1938a).
• Economic Importance: A pest of walnut, Juglans sp. in North America (Ebeling, 1959; Gill, 1997; Davidson & Miller, 1990).
• General Remarks: Description and illustration of adult female by Ferris (1938a), McKenzie (1956), Kosztarab (1996) and by Gill (1997).

Illustrations

Citations