Cynipidae

Aulacidea

Pilosella officinarum

British Columbia

New Brunswick

Newfoundland and Labrador

Nova Scotia

Ontario

Prince Edward Island

Quebec

Saint Pierre and Miquelon

Pilosella spp

Aulacidea pilosellae

Aulacidea pilosellae (Kieffer, 1901) 

Nomenclature: Aulax beijerinckii Kieffer, 1899 | Aulax pilosellae Kieffer, 1901

Feeds on: Induces galls on Pilosella Hill spp. [P officinarum added as a placeholder]

Distribution: United States (Possibly introduced)

Catalog of Rose Gall, Herb Gall, and Inquiline Gall Wasps (Hymenoptera:Cynipidae) of the United States,Canada, and Mexico

GALL
Pupation within the gall.

HOST PLANTS
Asteraceae, monophagous

Pilosella cymosa, echioides, flagellaris, floribunda, officinarum, onegensis.

PARASITOIDS, PREDATORS
Eupelmus messene; Eurytoma cynipsea; Pteromalus isarchus.

NOTES
The species is fully parthenogenetic, and can have several generations in a season 

[click link below for photos]

Plant Parasites of Europe

In [their 2014 article in The Canadian Entomologist](https://www.cambridge.org/core/journals/canadian-entomologist/article/abs/prerelease-detection-of-a-biocontrol-agent-combining-independent-and-public-dna-sequences-to-identify-the-first-north-american-record-of-aulacidea-pilosellae-hymenoptera-cynipidae/C5496C21FC736D6F193D36A9E177064B), Moffat and Smith describe how, just before A. pilosellae was about to be introduced, a previously unidentified specimen collected from Ontario proved to have matching DNA. The discovery occurred when COI DNA sequences of A. pilosellae were compared with publicly available DNA sequence records.

Gallformers ID Notes