Leucophora

Robineau-Desvoidy, 1830

satellite flies, root-maggot flies

Species Guides

5

Leucophora is a of kleptoparasitic flies in the Anthomyiidae, comprising approximately 60 described with worldwide distribution except Oceania. Species are commonly known as 'satellite flies' due to their habit of hovering near nests. The genus is associated with bees and solitary , with females shadowing hosts to locate nest entrances for oviposition. Larvae are parasitic on host . Several species are notoriously difficult to distinguish based on external alone.

Leucophora johnsoni by (c) Katja Schulz, some rights reserved (CC BY). Used under a CC-BY license.Leucophora by (c) Zachary Dankowicz, some rights reserved (CC BY), uploaded by Zachary Dankowicz. Used under a CC-BY license.Leucophora by (c) Katja Schulz, some rights reserved (CC BY). Used under a CC-BY license.

Pronunciation

How to pronounce Leucophora: //luːˈkɒfərə//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

External is highly conserved across , making visual identification difficult; male and female genital structures provide crucial diagnostic characters for species-level determination. Some species, such as Leucophora obtusa, are distinguished by unusually dense long erect hairs on abdominal sternites and scutellum margins compared to .

Images

Habitat

Found in proximity to nests of bees and ; collected from deciduous woodland environments where solitary bees nest.

Distribution

Worldwide distribution except Oceania; recorded from Japan, Europe, North America, and South America (16 recognized from Argentina alone).

Host Associations

  • bees - kleptoparasitefemales shadow bees to locate nest entrances for oviposition
  • solitary wasps - kleptoparasiteassociated with nests
  • Andrena bees - larvae parasitize ; specific to L. obtusa and related

Life Cycle

Larvae develop as within . Females oviposit in the tumulus at nest entrances of host bees.

Behavior

females exhibit 'satellite' : hovering or 'orbiting' around nests, and actively shadowing host bees back to their burrows to locate nest entrances for -laying.

Ecological Role

of solitary and larvae; regulator of .

Similar Taxa

  • other AnthomyiidaeLeucophora are distinguished by kleptoparasitic and association with hymenopteran nests; most anthomyiids are not parasitic and lack the 'satellite fly' behavioral

More Details

Taxonomic difficulty

The exhibits remarkable external morphological uniformity, leading to frequent misidentification. Reliable determination requires examination of male and female genital structures. The distiphallus and ovipositor terminal segments show species-specific modifications.

Genomic resources

Chromosomally complete assembly available for Leucophora obtusa (1,289.8 Mb, 6 chromosomal pseudomolecules, 18.72 kb mitochondrial genome) as part of the Darwin Tree of Life Project.

Tags

Sources and further reading