Dasineura parthenocissi
(Stebbins, 1910)
Dasineura parthenocissi is a gall midge in the Cecidomyiidae that induces galls on Parthenocissus quinquefolia (Virginia creeper). The was described by Stebbins in 1910. Its galls are known to the parasitic wasp Platygaster munita. The has been documented in the northeastern United States, with observations concentrated in Vermont.
Pronunciation
How to pronounce Dasineura parthenocissi: //ˌdæsɪˈnjʊərə pɑːrˌθɛnəˈsɪsaɪ//
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Identification
Galls caused by D. parthenocissi appear on Parthenocissus quinquefolia. The galls are small, green, berry-like structures that may be mistaken for fruits. Dissection reveals a single larva inside, distinguishing them from actual fruits. The galls are similar in general form to those caused by the related Dasineura investita on Laportea canadensis, but are distinguished by their plant association with Parthenocissus rather than Laportea.
Habitat
Associated with mesic to wet-mesic where its plant Parthenocissus quinquefolia occurs, including forest edges, riparian corridors, and disturbed areas.
Distribution
Documented from Vermont and other parts of the United States. GBIF records indicate distribution in the northeastern United States.
Diet
Larval development occurs within galls on Parthenocissus quinquefolia. The specific feeding mechanism within the gall tissue has not been detailed in available sources.
Host Associations
- Parthenocissus quinquefolia - gall inductionVirginia creeper; sole documented plant for gall induction
Ecological Role
As a gall inducer, modifies plant tissue to create protected larval chambers. The galls provide for associated including Platygaster munita.
Similar Taxa
- Dasineura investitaAlso a Dasineura that induces similar small green berry-like galls, but on Laportea canadensis (wood nettle) rather than Parthenocissus quinquefolia. Both species occur in mesic forest in eastern North America.