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Tribe Aulacideini - Herb Gall Wasps

Cynipidae - Antistrophus - female Cynipidae, Rosinweed Stem Wasp, on Cup plant stem - Antistrophus silphii - female  Aulacidea? from dead Lactuca c.f. canadensis stems - Aulacidea harringtoni Cynipidae, Rosinweed Stem Wasp, on Cup plant stem - Antistrophus silphii Gall on wild lettuce - Aulacidea podagrae stem gall on wild lettuce - Aulacidea gall - Aulacidea stem gall on wild lettuce - Aulacidea
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Parasitica" - Parasitoid Wasps)
Superfamily Cynipoidea
Family Cynipidae (Gall Wasps)
Tribe Aulacideini (Herb Gall Wasps)
Synonyms and other taxonomic changes
Formerly considered part of Aylacini Ashmead, 1903; new tribe designated by Nieves-Aldrey, Nylander & Ronquist, 2015 (1). All of our herb-galling species are now part of this tribe except for two introduced species which are placed in Phanacidini.
Numbers
9 genera (Antistrophus, Aulacidea, Cecconia, Hedickiana, Isocolus, Liposthenes, Neaylax, Panteliella, Rhodus); 75 species worldwide (1). Many undescribed species exist, especially in North America.
Size
Most adults 1-5mm in length.
Identification
Most species in our area are either entirely reddish-brown (some Antistrophus) or have a black head and thorax with a red abdomen (some Antistrophus and most Aulacidea).
Season
Adults are active during the early summer.
Food
Aulacideini are gall inducers on several plant genera in our area. All known hosts belong to Asteraceae except Glechoma which belongs to Lamiaceae.

Chrysothamnus
Antistrophus chrysothamni
Glechoma
Liposthenes glechomae on G. hederacea
Lactuca
Aulacidea abdita
Aulacidea annulata/tumida on Lactuca canadensis (these species are likely synonymous pending ongoing revisionary work)
Aulacidea harringtoni
Aulacidea podagrae
Lygodesmia
Antistrophus pisum Walsh, 1869 on L. juncea
At least two other undescribed species of Antistrophus on L. juncea
Microseris
Antistrophus microseris
Nabalus
Aulacidea nabali
Silphium
Antistrophus jeanae on Silphium perfoliatum
Antistrophus laciniatus on Silphium laciniatum
Antistrophus meganae on Silphium terebinthinaceum
Antistrophus minor on Silphium laciniatum
Antistrophus rufus on Silphium laciniatum
Antistrophus silphii on Silphium integrifolium and perfoliatum

Host unknown/unconfirmed: Antistrophus bicolor (presumed to be associated with Silphium); Aulacidea ambrosiaecola (presumed to be associated with Ambrosia)

Undescribed species also exist on other hosts.
Remarks
Members of this tribe induce galls in herbaceous plants, mostly in Asteraceae and Lamiaceae. Some of the current genera are unnatural,
and the generic classification of this tribe is in need of revision. (1)
See Also