The gall's range is computed from the range of all hosts that the gall occurs on. In some cases we have evidence that the gall does not occur across the full range of the hosts and we will remove these places from the range. For undescribed species we will show the expected range based on hosts plus where the galls have been observed.
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from similar galls and/or important information about the taxonomic status of
this gall inducer.
Created Feb 4, 2026 1:47 PM UTC
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Last updated Feb 4, 2026 1:47 PM UTC
Life History and Host Specificity of Rhopalomyia n. sp. (Diptera: Cecidomyiidae), a Potential Biological Control Agent of Scentless Chamomile
Hinz, Harriet L.
(1998)
[I]nduce[s] galls in different meristematic tissues of [Tripleurospermum inodorum], including the apical meristems of rosettes and bolting plants, leaf axils, buds, and flowers ...
The 1st generation induced galls in the apical meristem of overwintered rosettes of scentless chamomile, whereas the following 2 generations formed galls in the apical meristems of main and side shoots, in leaf axils, and in or just below buds and flowers ... In contrast to galls induced in the apical meristem of rosettes during the growing period, gall chambers on overwintering rosettes are typically located at the root crown of plants ... The majority of galls that developed in axillary buds or in flowers consisted of 1-2 chambers, whereas galls formed in the apical meristems of rosettes and bolting plants usually contained >2 chambers ...
[in measuring the galls, which varied in size,] it was assumed that the shape of the galls is elliptical.
