Phylloxera davidsoni
The inducer of this gall is unknown or undescribed.
Family: Phylloxeridae | Genus: Phylloxera
Hosts: Quercus engelmannii
Detachable: integral
Color:
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Abundance:
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Alignment: integral
Walls:
Location: lower leaf
Form: leaf spot
Cells: not applicable
Possible Range:i
Common Name(s):
Synonymy: 
Our ID Notes may contain important tips necessary for distinguishing this gall from similar galls and/or important information about the taxonomic status of this gall inducer.
Aphids on the world's plants
“
Phylloxera davidsoni Duncan
Apterae light orange to yellowish brown; BL c. 0.7 mm. Immatures are pale yellow, alatae orange with black thorax. On undersides of tomentous young leaves of Quercus engelmanni in California, USA (Duncan 1922). The life cycle is unknown.
”- Roger Blackman, Victor Eastop: (2013) Aphids on the world's plants©
Reference: http://www.aphidsonworldsplants.info/d_APHIDS_P.htm#Phylloxera
Further Information:
Pending...
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