Ctenodactylomyia watsoni
Felt, 1915
Sea Grape Gall Midge
Ctenodactylomyia watsoni is a in the , commonly known as the Sea Gall Midge. It induces on sea grape (Coccoloba uvifera), a coastal shrub to tropical and subtropical regions of the Americas. The species is well-documented through iNaturalist observations, with over 790 records, indicating it is relatively common and readily observed by naturalists in its range. As a gall-forming , it manipulates tissue to create protected structures for larval development.
Pronunciation
How to pronounce Ctenodactylomyia watsoni: /ktɛ.noʊ.dækˈtɪ.loʊˌmaɪ.ə ˈwɒt.sə.naɪ/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
The is small, as is typical for , but specific diagnostic features distinguishing C. watsoni from are not well-documented in accessible literature. The induced on sea leaves are the most reliable indicator of this ' presence. Gall —shape, size, and location on leaf tissue—may provide distinguishing characteristics from other affecting the same .
Habitat
Coastal where sea (Coccoloba uvifera) grows, including beach dunes, coastal hammocks, and shorelines in tropical and subtropical regions. The tolerates salt spray and sandy soils, limiting the to maritime environments.
Distribution
Ranges throughout the distribution of its Coccoloba uvifera: Florida (USA), the Bahamas, Caribbean islands, and coastal regions of Central and South America. GBIF and iNaturalist records confirm presence across this broad tropical and subtropical coastal zone.
Diet
feed on tissue within induced on sea (Coccoloba uvifera) leaves. The specific nutritional relationship—whether the larvae consume tissue, gall tissue, or associated —has not been explicitly documented for this .
Host Associations
- Coccoloba uvifera - Sea ; formation documented on leaves
Behavior
Induces formation on sea leaves. develop within these galls, which provide protection and nutrition. and patterns are not documented.
Ecological Role
As a inducer, it modifies tissue, potentially affecting leaf function and plant growth. Its role in coastal —whether as for , , or other interactions—has not been studied.
Human Relevance
Of minor economic or horticultural concern; sea is occasionally used in landscaping, and heavy may reduce aesthetic value. The serves as an accessible subject for observation and citizen science documentation.
Similar Taxa
- Other Ctenodactylomyia species in the same may induce similar on related or co-occurring plants; differentiation requires gall and examination, and potentially morphological analysis.
- Other Cecidomyiidae on CoccolobaMultiple may attack sea ; accurate identification relies on characteristics and confirmed .