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Soft Brown Scale

Scientific Name
Coccus hesperidum
Scientific Author
Linnaeus, 1758
Taxonomy
(Hemiptera: Coccidae: Coccinae: Coccini)
Pest Status
0 Unknown
Status
NZ - Exotic
Reliability
High
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Diagnostic Images

Anal Plate - Adult
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Caption
HEM77 -Slide mounted
Source
Caroline Harding MAF
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Diagnostic Images (7)
Diagnostic Notes
Adult Female

Dorsal setae enlarged, apically acute or slightly rounded, not capitate; ventral tubular ducts medial between middle legs, with a few near base of hind legs; dorsal submarginal tubular ducts often present around body margin, same size or smaller than ventral ducts; claw with or without small denticle. Other characters: claw digitules equal or rarely unequal; 3 pairs of prevulvar setae (posterior pair often obscured by anal plates); 0-21 submarginal tubercles around body margin; marginal setae slightly enlarged, usually weakly fimbriate, occasionally simple; anal plates with posterior margin longer than anterior margin; each anal plate with 4 apical setae, without a subdiscal seta; with 2 or rarely 3 subapical setae on each plate; anal fold with 4 fringe setae; with or without tibio-tarsal sclerosis; antennae 7- or 8-segmented; stigmatic setae differentiated from other marginal setae, middle seta conspicuously longer than lateral setae; multilocular pores normally with 10 loculi; multiloculars usually confined to vulvar area, 1 or 2 pores on segments 6 or 7; preopercular pores in small numbers, inconspicuous.

Field Characters

Body broadly oval to round; flat to slightly convex in lateral view; body yellow-green to yellow-brown, usually with small brown flecks scattered on dorsum; body turning brown with age; without an obvious wax covering; ovisac absent. Occurring on arboreal parts of plant. Males usually absent; eggs hatch within body of female.

References

- Miller, D.R., Rung, A., Venable, G.L. & Gill, R.J. (2007). Scale Insects: Identification tools, images and diagnostic information for species of quarantine significance (CD-ROM). USDA, SEL, APHIS.
More Information
Specimen Contact
MAF Plant Health & Environment Laboratory
Author
MAF Plant Health & Environment Laboratory
Created
23/05/2011 11:47 AEST
Last Updated
20/03/2014 22:25 AEST
Citation
MAF Plant Health & Environment Laboratory (2011) Soft Brown Scale (Coccus hesperidum) Updated on 3/20/2014 10:25:32 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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