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Boisduval Scale

Scientific Name
Diaspis boisduvalii
Scientific Author
Signoret, 1869
(Hemiptera: Diaspididae)
Pest Status
0 Unknown
0 Unknown
NZ - Exotic
NZ - Exotic

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Diagnostic Images

Ventral - Adult
NZA721. Magnification: 20x.
Qing-Hai Fan MAF
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Diagnostic Images (4)
Other Images (5)
Diagnostic Notes
Source: Henderson (2011) [See Web Links tab]

Live Appearance and Habitat

Female scale cover opaque, circular, flat, exuvia central; male scale cover elongate, carinate with pale terminal exuvium, and associated white woolly wax. Female body creamy with dark pygidium when young, pale yellow when mature, eggs yellow. On leaves of host plants.


Adult female body turbinate, prosoma with an ear-like lobe each side (occasionally lacking in some specimens); apex of pygidium with deep notch formed by recessed median lobes; each lobe diverging, serrate, the inner margins longer than outer margins. L2 and L3 rounded, bilobate, the lobules of each about same size, unilobate L4 present. With a pair of setae in medial space. Gland spines present singly lateral to L1 between lobes and more numerous on prepygidial abdominal margins to segment II. Marginal macroducts 2-barred, 6 pairs plus 1 macroduct between median lobes, and 2 pairs of macroducts submarginally by L2 and L3. With a lateral spur on margin at position of each 6th macroduct.

Dorsal ducts becoming smaller anteriorly. Anal opening small, positioned in posterior 1/3 of pygidium. Antenna with 1 seta. Anterior spiracles each with a small group of trilocular pores, absent from posterior spiracles. Perivulvar pores present in 5 compact lozenge-shaped groups.

Source: [ScaleNet](


Miller & Davidson (2005). Suh & Ji 2009: 1041-1043 (female) [Key to species of armored scales intercepted on imported plants (slide mounted females)]; Colón-Ferrer & Medina-Gaud 1998: 91 [Key to species of Diaspis of Puerto Rico]; Gill 1997: 125 (female) [Key to California species of Diaspis]; Wolff & Corseuil 1993a: 154 (female) [Diaspidid species on mango in Brazil]; Williams & Watson 1988: 100 (female) [Key to species of Diaspis in the tropical South Pacific Region]; Chou 1982: 118 (female) [Key to Chinese species of Diaspis]; Danzig 1971d: 845 (female) [Key to species of family Diaspididae]; Beardsley 1966: 531 (female) [Key to known Micronesian species of Diaspis]; Schmutterer 1959: 178 (female) [Bestimmungstabelle der deutschen Diaspis-Arten]; McKenzie 1956: 31 (female) [Key to the species of Diaspis Costa]; Balachowsky 1954e: 178 (female) [Tableau d'indentification des espèces du Diaspis Costa]; Hall 1946a: 515 (female) [Key to species of Diaspis]; Ferris 1942: SIV-446:53 (female) [Key to species of Diaspis]; Archangelskaya 1937: 82 (female) [Key to species of Diaspis]; Fullaway 1932: 95 (female) [Key to species of Hawaiian Diaspinae]; MacGillivray 1921: 319 (female) [Key to species of Diaspis]; Newstead 1901b: 152 (female) [Key to species of Diaspis].
More Information
Specimen Contact
New Zealand Arthropod Collection
Henderson, R. C. & Crosby, T. K.
27/05/2011 01:51 AEST
Last Updated
23/03/2014 22:08 AEST
Henderson, R. C. & Crosby, T. K. (2011) Boisduval Scale (Diaspis boisduvalii ) Updated on 3/23/2014 10:08:05 PM Available online: PaDIL -
Image Use
Free for use under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)