Hoplodictya spinicornis
(Loew, 1866)
marsh fly
Hoplodictya spinicornis is a small in the , measuring 3–4 mm in length. The is notable for its parasitic larval stage, which targets land . It has a broad distribution across the southern United States, Mexico, Central America, and the Caribbean, with northern extensions into Canada and the northeastern United States. The complete averages approximately 45 days.
Pronunciation
How to pronounce Hoplodictya spinicornis: /hɒplɒˈdɪktiə ˌspɪnɪˈkɔːrnɪs/
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Identification
A small measuring 3–4 mm. Specific diagnostic features distinguishing it from are not documented in available sources.
Habitat
Marsh environments, inferred from and typical ; specific microhabitat preferences are not documented.
Distribution
Widespread in the southern United States and Mexico; extends north to British Columbia and New Jersey, south to Guatemala and the West Indies.
Diet
are of land , specifically recorded from Oxyloma retusum and Mediappendix avara. feeding habits are not documented.
Host Associations
- Oxyloma retusum - larval feeds on for several days until death
- Mediappendix avara - larval feeds on for several days until death
Life Cycle
Averages approximately 45 days from to . parasitize multiple sequentially, feeding on a first until its death, then moving to a second and sometimes third snail.
Behavior
exhibit sequential exploitation, abandoning a deceased initial host to locate and parasitize additional .
Ecological Role
Acts as a agent of land through larval .
Similar Taxa
- Other Hoplodictya speciescongeneric sharing small size and coloration; specific distinguishing characters not documented
- Other Sciomyzidae members share general ; identification to level requires detailed examination
More Details
Historical taxonomy
Originally described as Tetanocera spinicornis by Loew in 1866; later transferred to Hoplodictya.