Helophilina

Becker, 1922

rat-tail maggot flies

Genus Guides

9

Helophilina is a subtribe of hoverflies within the Syrphidae, commonly referred to as rat-tail maggot flies. The subtribe encompasses approximately 19 and over 180 described . Members are classified within the Eristalinae and tribe Eristalini. The derives from the aquatic or semi-aquatic larval stage, which possesses a long, telescopic breathing siphon resembling a rat's tail.

Meromacrus acutus by (c) Katja Schulz, some rights reserved (CC BY), uploaded by Katja Schulz. Used under a CC-BY license.Eristalinus aeneus by (c) Michael Knapp, some rights reserved (CC BY), uploaded by Michael Knapp. Used under a CC-BY license.Eristalis dimidiata by (c) Gilles Gonthier, some rights reserved (CC BY). Used under a CC-BY license.

Pronunciation

How to pronounce Helophilina: //ˌhɛloʊfaɪˈlaɪnə//

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Distribution

Distribution records exist for the United States, including Vermont.

Life Cycle

Larvae are aquatic or semi-aquatic and possess a characteristic long, telescopic breathing siphon that extends to the water surface for respiration.

Ecological Role

Larvae contribute to nutrient cycling in aquatic and semi-aquatic environments through their detritivorous feeding habits.

Human Relevance

Rat-tail maggot larvae are occasionally found in polluted or nutrient-rich aquatic environments, including artificial containers, and may serve as bioindicators of water quality.

More Details

Taxonomic Note

GBIF lists Helophilina as a doubtful , while Catalogue of Life and other sources recognize it as an accepted subtribe. This discrepancy reflects historical taxonomic uncertainty in hoverfly classification.

iNaturalist Observations

The subtribe has accumulated over 112,000 observations on iNaturalist, indicating substantial citizen science engagement with this group.

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Sources and further reading