Phasia hemiptera

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Phasia hemiptera
Phasia hemiptera top.jpg
Phasia hemiptera on a flower
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Subsection: Calyptratae
Superfamily: Oestroidea
Family: Tachinidae
Subfamily: Phasiinae
Tribe: Phasiini
Genus: Phasia
Species: P. hemiptera
Binomial name
Phasia hemiptera
(Fabricius, 1794)
  • Phasia affinis (Fabricius, 1794)
  • Phasia subcoleoptrata (Fabricius, 1775) non (Linnaeus, 1767)
  • Syrphus affinis Fabricius, 1794
  • Syrphus hemipterus Fabricius, 1794
  • Syrphus subcoleoptratus Fabricius, 1775 non Linnaeus, 1767
Female on flowers (Video, 1m 15s)

Phasia hemiptera is a tachinid fly found throughout Northern and Southern Europe. It is a strongly sexually dimorphic species, males being more colourful with curved patterned wings.[1] Like most tachinid flies, the female lays her eggs on other insects, the larvae then develop inside the living host, devouring it and eventually killing it. Its main hosts are the forest bug Pentatoma rufipes in the spring, and the green shield bug Palomena prasina in the autumn.[1][2][3]


  1. ^ a b Øivind Gammelmo & Bjørn Arve Sagvolden (2007). "The tachinid fly Phasia hemiptera (Fabricius, 1794) (Diptera, Tachinidae) in Norway" (PDF). Norwegian Journal of Entomology 54 (1): 51–54. 
  2. ^ Belshaw, Robert (1993). "Tachinid Flies Diptera Tachinidae". Royal Entomological Society Handbooks (Royal Entomological Society of London) 10 (4ai): 170. 
  3. ^ van Emden, F.I. (1954). "Ditera Cyclorrhapha Calyptrata (I) Section (a) Tachinidae & Calliphoridae". Royal Entomological Society Handbooks (Royal Entomological Society of London) 10 (4a): 133.