Variable Duskyface Fly
Melanostoma mellinum (Linnaeus, 1758)
Variable Duskyface Fly: https://marylandbiodiversity.com/species/9866
Synonyms
Tags

Map Snapshot

24 Records

Status

Widespread and abundant in northern North America, but infrequently recorded from Maryland. This may be at least in part because it is not especially distinctive. Found in mixed woodlands and damp meadows, where it feeds on grass pollen and other flowers.

Description

The only nearctic member of its genus. Males typically have yellow quadrate markings on the abdomen; female markings are triangular (Skevington, 2019). Genus Platycheirus is similar, but this species can be identified from photos with care.

Relationships

Larvae feed on aphids.

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Source: Wikipedia

Melanostoma mellinum
Male
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Family: Syrphidae
Genus: Melanostoma
Species:
M. mellinum
Binomial name
Melanostoma mellinum
Synonyms
List
  • Melanostoma concolor (Walker, 1851)
  • Melanostoma facultas (Harris, 1780)
  • Musca facultas Harris, 1780
  • Musca mellinum Linnaeus, 1758
  • Syrphus concolor Walker, 1851
  • Melanostoma angustatum Williston, 1887
  • Melanostoma fallax Curran, 1923
  • Melanostoma melanderi Curran, 1930
  • Melanostoma montivagum Johnson, 1916
  • Melanostoma pachytarse Bigot, 1884
  • Melanostoma pallitarse Curran, 1926
  • Melanostoma pictipes Bigot, 1884
  • Melanostoma pruinosa Bigot, 1884
  • Musca mellinum Linnaeus, 1758
  • Syrphus albimanus Fabricius, 1781
  • Syrphus lachrymosus Say, 1835
  • *Pachysphyria flavitibia Enderlein, 1938[1]

Melanostoma mellinum is a very common species of hoverfly found in many parts of Britain, Europe including the Mediterranean basin and North Africa, the East Palearctic, and North America.

A small species, their wingspan range recorded is between 4.7 and 7.0 mm. Very similar to Platycheirus and other Melanostoma species, but with close inspection of some finer details, it can be identified with certainty. Adult males closely resemble Platycheirus clypeatus, but lack the flattening or broadening of the front legs characteristic of most Platycheirus males. Females resemble female Melanostoma scalare, sharing similar triangular tergite markings, but have a shiny, black frons, which separates them from M. scalare and most Platycheirus species. Also, M. mellinum may prove to be a species complex.

Their preferred habitat include grasslands and moorlands, including those in hilly and mountainous regions. Adults can be found feeding on the pollen of grasses (Poaceae) and other wind-pollinated plants.

Little is known of their biology, but the larvae are suspected to be a general predator of small insects in leaf litter.

Flight times in Britain and Ireland are from April to October with peaks in late May - early June and from July to August.[2][3][4][5][6][7]

References

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  1. ^ Insecta pro
  2. ^ Ball, Stuart; Morris, Roger (2013). Britain's Hoverflies: An Introduction to the Hoverflies of Britain. Woodstock, Oxfordshire: Princeton University Press. pp. 296pp. ISBN 978-0-691-15659-0.
  3. ^ Ball, S.G.; Morris, R.K.A. (2000). Provisional atlas of British hoverflies (Diptera, Syrphidae). Monks Wood, UK: Biological Record Centre. pp. 167 pages. ISBN 1-870393-54-6.
  4. ^ Morris, Roger K. A. (1999). Hoverflies of Surrey. Surrey Wildlife Trust. p. 244. ISBN 0-9526065-3-4.
  5. ^ Speight, M.C.D. (2011). "Species accounts of European Syrphidae (Diptera)" (PDF). Syrph the Net, the database of European Syrphidae. 65: 285pp.
  6. ^ Stubbs, Alan E.; Falk, Steven J (1983). British Hoverflies: An Illustrated Identification Guide (2nd ed.). London: British Entomological and Natural History Society. pp. 253, xvpp. ISBN 1-899935-03-7.
  7. ^ Van Veen, M.P. (2004). Hoverflies of Northwest Europe, Identification Keys to the Syrphidae (Hardback). Utrecht: KNNV Publishing. p. 254. ISBN 90-5011-199-8.
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