Phasia obesa
Encyclopedia
Phasia obesa is a species of 'parasitic flies' belonging to the family Tachinidae
subfamily Phasiinae
.
This fly is present in most of Europe
. The adults grow up to 4–6 mm (0.15748031496063–0.236220472440945 ) long and can mostly be encountered from June through September feeding on nectar of flowers (especially of Asteraceae
species).
Their large compound eyes are reddish. The body is greysh, with four longitudinal black bands interspersed with clear bands of the same thickness on mesonotum. The large wings show a light brownish shading. The cell R5 is closed at the edge.
Larvae of Phasia obesa are parasitoid
s on adults or nymphs of various species of plant bugs (Neottiglossa and Zicrona sp. Pentatomidae
, Leptopterna and Beosus sp. Miridae
, Lygus sp. Lygaeidae, Myrmus sp. Rhopalidae
, etc.).
Tachinidae
Tachinidae is a large and rather variable family of true flies within the insect order Diptera, with more than 8,200 known species and many more to be discovered. There are over 1300 species in North America. Insects in this family are commonly called tachina flies or simply tachinids...
subfamily Phasiinae
Phasiinae
Phasiinae is a subfamily of flies in the family Tachinidae.-Tribes & Genera:*Tribe Catharosiini*Catharosia Róndani, 1868*Litophasia Girschner, 1887*Tribe Cylindromyiini*Besseria Robineau-Desvoidy, 1830*Catapariprosopa Townsend, 1927...
.
This fly is present in most of Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...
. The adults grow up to 4–6 mm (0.15748031496063–0.236220472440945 ) long and can mostly be encountered from June through September feeding on nectar of flowers (especially of Asteraceae
Asteraceae
The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...
species).
Their large compound eyes are reddish. The body is greysh, with four longitudinal black bands interspersed with clear bands of the same thickness on mesonotum. The large wings show a light brownish shading. The cell R5 is closed at the edge.
Larvae of Phasia obesa are parasitoid
Parasitoid
A parasitoid is an organism that spends a significant portion of its life history attached to or within a single host organism in a relationship that is in essence parasitic; unlike a true parasite, however, it ultimately sterilises or kills, and sometimes consumes, the host...
s on adults or nymphs of various species of plant bugs (Neottiglossa and Zicrona sp. Pentatomidae
Pentatomidae
Pentatomidae, Greek pente meaning five and tomos meaning section, is a family of insects belonging to order hemiptera that includes some of the stink bugs and shield bugs. Their antennae are 5-segmented, which gives the family its scientific name. Their bodies are usually shield-shaped...
, Leptopterna and Beosus sp. Miridae
Miridae
The large and diverse insect family Miridae contains the plant bugs, leaf bugs, and grass bugs, and may also be known as capsid bugs. It is the largest family of true bugs belonging to the suborder Heteroptera, with over 10,000 known species and new ones constantly being described...
, Lygus sp. Lygaeidae, Myrmus sp. Rhopalidae
Rhopalidae
Rhopalidae, or scentless plant bugs are a family of true bugs. In older literature, the family is sometimes called "Corizidae". They differ from the related coreids in lacking well-developed scent glands. They are usually light-colored and smaller than the coreids...
, etc.).