Milesia crabroniformis

Milesia crabroniformis
	Milesia crabroniformis. Male, frontal view
	Female, dorsal view
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Diptera
Family:	Syrphidae
Subfamily:	Eristalinae
Tribe:	Milesiini
Subtribe:	Milesiina
Genus:	Milesia
Species:	M. crabroniformis
Binomial name
	Milesia crabroniformis; (Fabricius, 1775)[1]
Synonyms
	Syrphus crabroniformis Fabricius, 1775[1]; Milesia coenina Walker, 1849[2]; Syrphus gigas Rossi, 1790; Musca crabroniformis Villers, 1789[3];

Milesia crabroniformis is a species of flower flies or hoverflies belonging to the family Syrphidae subfamily Eristalinae. [4][5]

Distribution

This species is mainly present in Belgium, France, Greece, Italy, Spain, Portugal, Switzerland, in the Near East and in North Africa. [6][7]

Description

Milesia crabroniformis, side view

The adults of Milesia crabroniformis grow up to 22–25 millimetres (0.87–0.98 in) long. These rather uncommon hoverflies are the largest among the European species.

They show a yellow face, reddish femurs, a yellow-brown abdomen and its wings are shaded with yellow-orange. Eyes of males are holoptic, although they meet along the dorsal length of the head in a very low point of contact.[8]

They mimic the hornet species Vespa crabro[7] (hence the Latin name crabroniformis, meaning ‘hornet-formed’). It is also very similar to Volucella zonaria, a little smaller syrphid.

Biology

Adults can mainly be encountered from June through October, with a peak at the end of August. They inhabit evergreen and deciduous forests (Quercus and Fagus species), feeding on nectar of flowers of several plants (Apiaceae species, Lythrum salicaria, Mentha aquatica, Sambucus ebulus, Hedera species, Cirsium species, etc.). [7]

Their larvae develop on decaying wood and rotting cavities of old Fagus and Quercus species.[7]

References

Fabricius, J.C. (1775). Systema entomologiae, sistens insectorum classes, ordines, genera, species, adiectis synonymis, locis, descriptionibus, observationibus. Flensbvrgi et Lipsiae [= Flensburg & Leipzig]: Kortii. pp. [32] + 832. Retrieved 20 February 2021.
Walker, F. (1849). List of the specimens of dipterous insects in the collection of the British Museum. Part III. London: British Museum (Natural History). pp. 485–687.
Villers, C.J. de (1789). Caroli Linnaei entomologia Vol. 3. Lugduni [=Lyon].: Piestre & Delamolliere. pp. 657 pp., 4 pls.
Catalogue of life
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.
Fauna europaea
La famiglia dei sirfidi: biologia e ecologia
Tifa’s photos

External links

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[Fabricius1775-1] Fabricius, J.C. (1775). Systema entomologiae, sistens insectorum classes, ordines, genera, species, adiectis synonymis, locis, descriptionibus, observationibus. Flensbvrgi et Lipsiae [= Flensburg & Leipzig]: Kortii. pp. [32] + 832. Retrieved 20 February 2021.

[Walker1849-2] Walker, F. (1849). List of the specimens of dipterous insects in the collection of the British Museum. Part III. London: British Museum (Natural History). pp. 485–687.

[Villers1789-3] Villers, C.J. de (1789). Caroli Linnaei entomologia Vol. 3. Lugduni [=Lyon].: Piestre & Delamolliere. pp. 657 pp., 4 pls.

[4] Catalogue of life

[VanVeen-5] 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.

[6] Fauna europaea

[XX-7] La famiglia dei sirfidi: biologia e ecologia

[8] Tifa’s photos