Celticecis pyriformis
Gagné, 2013
Hackberry Pear-shaped Gall Midge
Celticecis pyriformis is a in the , described by Gagné in 2013. The species induces distinctive pear-shaped on hackberry (Celtis) plants. It is one of several Celticecis species specialized on Celtis species in North America. The species has been documented through iNaturalist observations and taxonomic sources, though detailed biological studies remain limited.
Identification
Distinguished from other Celticecis by the pear-shaped (pyriform) of the it produces on hackberry leaves and . The specific epithet 'pyriformis' directly references this shape. Gall shape and association (Celtis species) are primary diagnostic features; are small and require microscopic examination for definitive identification.
Images
Habitat
Associated with hackberry trees (Celtis ), occurring in woodland edges, riparian corridors, and urban plantings where trees are present.
Distribution
North America; distribution corresponds with range of hackberry (Celtis occidentalis and related species), primarily in eastern and central United States.
Host Associations
- Celtis - Pear-shaped formed on leaves and
Ecological Role
Induces formation on hackberry, creating specialized microhabitats that may support and .
Human Relevance
Minor significance; formation may cause aesthetic damage to ornamental hackberry plantings but does not typically threaten tree health. Provides educational value for observing - interactions.
Similar Taxa
- Celticecis capsularisAlso forms on Celtis, but produces rounded or capsular galls rather than pear-shaped structures
- Celticecis ovataProduces ovoid on Celtis; gall shape distinguishes it from C. pyriformis
- Other Celticecis speciesAll induce on Celtis; precise gall and microscopic examination of required for -level identification