Andricus quercuspetiolicola

Family: Cynipidae | Genus: Andricus
Detachable: integral
Color: brown, red, green
Texture: hairy, hairless
Abdundance: common
Shape: conical, globular, sphere
Season: Spring, Summer
Related:
Alignment: integral
Walls: thick
Location: petiole, leaf midrib
Form: abrupt swelling
Cells: polythalamous
Possible Range:i
Common Name(s):
Synonymy:
Name
Notes
Andricus cicatricula
gall only; wasp was an inquiline
Andricus cicatriculus
gall only; wasp was an inquiline
Andricus concolorans
Callirhytis cicatricula
gall only; wasp was an inquiline
Callirhytis parvifoliae
Cynips cicatricula
gall only; wasp was an inquiline
Cynips quercus sculptus
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  • image of Andricus quercuspetiolicola

Cynipid Galls of the Chicago Area

Midrib or petiole swellings
Oak petiole gall. Somewhat globular, conical above with a depression at apex, hard, green, polythalamous, the larval cells radiating out from the center. On the petiole or basal part of midrib, usually several in close proximity on the tree. In May and June, the adults emerging in late June. On Q. alba, bicolor, and macrocarpa.

- LH Weld: (1928) Cynipid Galls of the Chicago Area©

Reference: https://www.biodiversitylibrary.org/page/57505981#page/195/mode/1up


Further Information:

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