Aulacidea annulata Kinsey, 1920

Feeds on: Induces galls on Lactuca L. sp. or possibly Prenanthes

Distribution: United States: Massachusetts, Nebraska

Aulacidea annulata

From Sharon Mass. Doubtfully distinct from the above [Aulacida tumida]

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346. On Lactuca. Adults emerged June 5-12, 1912, Sharon MA. Probably a synonym of [A tumida]

Another described species, Aulacidea annulata, is almost certainly a synonym of A. tumida; Aulacidea annulata is currently associated with the spindle-shaped, irregular galls, but ongoing taxonomic studies will likely validate this synonymy in the near future.

Aulacidea annulata, new species

Galls --Terminal swelling of a stem, more or less club-shaped and somewhat bent and twisted, the enlargements gradual from the stem, of greatest diameter at the summit. Averaging about 70 mm. long by 18 mm. in greatest diameter. Under the bark the plant tissue is twisted, resembling the trunk of a wind-beaten tree. Many leaf petioles or stems of flower clusters are grouped at the summit of the gall, their bases involved in the swelling. Internally the galls are filled with pith, scattered through which are many larval cells, each oval, averaging 3.5 X 2.5 mm.
Range. -- Massachusetts: Sharon.