Dioctria hyalipennis

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Dioctria hyalipennis
Dioctria baumhaueri, Marford Quarry, North Wales, June 2017 (35046137082).jpg
Dioctria hyalipennis as Dioctria baumhaueri, Marford Quarry, North Wales
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Family: Asilidae
Genus: Dioctria
Species:
D. hyalipennis
Binomial name
Dioctria hyalipennis
(Fabricius, 1794) [1]
Synonyms
  • Dioctria baumhaueriMeigen, 1820

Dioctria hyalipennis is a Holarctic species of robber fly in the family Asilidae. [2] [3]

Contents

Description

10 to 14 mm. The upper head and vertex are shiny black. The lower face has a silvery-white pile. The mystax is white and the short proboscis black. The antennae appears Y-shaped with the segments about equal in length. They are black with short black hair. The neck is obvious and the thorax is raised or humped. It is black with two long indented lines and a faint covering of light yellow pile. Segment 2 (scutellum) is small with a line of yellow pile at the base. The thorax sides have a wide stripe of whitish pollen extending along the thorax down to the front leg. The wings are hyaline, but appear darker when folded over the body. The veins are brown. Halteres light yellow. The front and middle legs are mostly yellow with black streaks on the top side and dark tips. The feet are black with grey piles and yellow spines and toes. The hind legs are black with a swollen 1st foot segment. The abdomen is shining black. The lower margin of segments has a thin whitish line. The first 4 male segments are very narrow and constricted (appear wavy); the last few segments gradually widen to the tip. Female abdomen flat on top side, rounded and orange on the underside; much wider and thicker than male, but shorter.

Similar species

Eudioctria albius male has all dark legs.

Biology

The habitats include meadows, hedgerows, forest and field edges with large shrubs and spruce or cedar trees. Adults feed on mostly small wasps and bees like the Lasioglossum and Hylaeus . Also reported feeding on small Diptera and pygmy grasshoppers Tetrigidae. Flies May to July

Synonyms and types

Dioctria anomala, Dioctria flavipes, Dioctria frontalis, Dioctria varipes, Dioctria baumhaueri, Dioctria strandi

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References

  1. ↑ Fabricius, J.C. (1794). Entomologia systematica emendata et aucta. Vol. 4. Hafniae [=Copenhagen]: C. G. Proft. pp. [6] + 472 + [5] pp.
  2. ↑ Verrall, G. H., 1909 Stratiomyidae and succeeding families of the Diptera Brachycera of Great Britain British flies Volume 5 London : Gurney and Jackson, 1909.BHL Full text with illustrations
  3. ↑ Stubbs, Alan E.; Drake, Martin (2001). British Soldierflies and their allies: A Field Guide to the Larger British Brachycera (Print). London: British Entomological and Natural History Society. pp. 528 pages. ISBN   1-899935-04-5.

Notes

Introduced to Boston, Massachusetts area around 1916 from England.

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