Brachyopa insensilis

Brachyopa insensilis is a Palearctic species of hoverflies.[1][2] [3] [4]

Brachyopa insensilis
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Diptera
Family:
Syrphidae
Subfamily:
Eristalinae
Tribe:
Brachyopini
Genus:
Brachyopa
Species:
B. insensilis
Binomial name
Brachyopa insensilis
(Collin, 1939)

Description

External images For terms see Morphology of Diptera
The wing length is 6·5-7·25 mm. Apical antennomere small and without a sensory pit. Arista almost bare. Face less produced than in Brachyopa bicolor.[5] Scutellum with microtrichia only on anterior margin. The larva is illustrated by Rotheray (1993).[6]

Distribution

Brachyopa insensilis is a Palearctic species with a wide distribution in Europe[7] and east to Tadjikistan, Siberia, Russian Far East and Kamchatka.[8]

The habitat is Abies, Quercus and Fagus forest with senile trees, but also occurs on old trees in suburban parks.[9]

Behaviour

Brachyopa insensilis is arboreal descending to visit sap runs and flowers (white umbellifers, Photinia, Prunus padus, Sorbus aria.[10] The flight period is from the beginning of May to the end of June. Brachyopa insensilis has a characteristic, rapid, zigzag flight and rarely descends lower than 3 metres from the ground. It may occur in small swarms around sap runs. Larvae feed in sap runs and rot holes.

References
  1. Stubbs, Alan E. & Falk, Steven J. (1983). British Hoverflies: An Illustrated Identification Guide (2nd (revised) ed.). British Entomological & Natural History Society. p. 271, xvpp. ISBN 0-9502891-3-2.
  2. Van Veen, M. (2004) Hoverflies of Northwest Europe: identification keys to the Syrphidae. 256pp. KNNV Publishing, Utrecht.
  3. Van der Goot,V.S. (1981) De zweefvliegen van Noordwest - Europa en Europees Rusland, in het bijzonder van de Benelux. KNNV, Uitgave no.32: 275pp. Amsterdam.
  4. Bei-Bienko, G.Y. & Steyskal, G.C. (1988) Keys to the Insects of the European Part of the USSR, Volume V: Diptera and Siphonaptera, Part I. Amerind Publishing Co., New Delhi. ISBN 81-205-0080-6.
  5. Coe, R.L. (1953) Diptera: Syrphidae. Handbks.ident.Br.insects, 10(1): 1-98. R.ent.Soc.London.
  6. Rotheray G., 1993 Colour Guide to Hoverfly Larvae Diptera, Syrphidae in Britain and Europe Dipterists Forum pdf Archived 2019-04-03 at the Wayback Machine
  7. Fauna Europaea
  8. Peck, L.V. (1988) Syrphidae. In: Soos, A. & Papp, L. (eds.) Catalogue of Palaearctic Diptera, 8: 11-230. Akad.Kiado, Budapest.
  9. Speight, M.C.D. (2011). "Species accounts of European Syrphidae (Diptera)" (PDF). Syrph the Net, the database of European Syrphidae. 65: 285pp.
  10. de Buck, N. (1990) Bloembezoek en bestuivingsecologie van Zweefvliegen (Diptera, Syrphidae) in het bijzonder voor België. Doc. Trav. IRSNB, no. 60, p. 1-167.
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