Dasineura tumidosae
(Felt, 1908)
Ash Petiole Gall Midge
Dasineura tumidosae is a gall midge in the Cecidomyiidae that induces galls on ash trees (Fraxinus spp.). The is known primarily from its association with ash petioles, where larvae develop within characteristic swellings. Like other Dasineura species, it has a narrow range tied to specific plant tissues. The has been recorded from the northeastern United States, particularly Vermont.
Pronunciation
How to pronounce Dasineura tumidosae: /dæsɪˈnʊərə tjuːmɪˈdoʊsiː/
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Identification
This is identified by the galls it produces on ash petioles rather than by direct examination of the . The galls appear as swollen, tumor-like growths on the petioles of ash leaves. Adult gall midges in this are typically minute, delicate flies with long and reduced wing venation, but specific diagnostic features for D. tumidosae adults require examination.
Images
Distribution
Recorded from Vermont, United States, with distribution presumably tied to the range of its ash trees in the northeastern United States.
Host Associations
- Fraxinus - gall inducerLarvae develop within petiole galls on ash trees
Similar Taxa
- Dasineura investitaAnother Dasineura that induces galls, but on wood nettle (Laportea canadensis) rather than ash
- Taxodiomyia cupressiananassaAnother cecidomyiid gall midge, but induces galls on bald cypress (Taxodium distichum) twigs rather than ash petioles