Andricus stellaris

Andricus stellaris, the sunburst gall wasp, is a fairly common species of cynipid wasp that produces galls on blue oaks and Oregon oaks on the Pacific coast of North America.^[1][2] The wasp oviposits on the underside of leaves, between the lateral veins; the larval chamber is the brightly colored spot at the center of the gall.^[1] The chamber is surrounded by a crystalline structure.^[3]

Andricus stellaris
Sunburst galls on an oak leaf, Santa Rosa, 2022
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Cynipidae
Genus:	Andricus
Species:	A. stellaris
Binomial name
Andricus stellaris (Weld, 1926)