''Meromyza pratorum'' is a species of

fly Flies are insects of the Order (biology), order Diptera, the name being derived from the Ancient Greek, Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwing ...

in the family

Chloropidae The Chloropidae are a family of flies commonly known as frit flies or grass flies. About 2000 described species are in over 160 genera distributed worldwide. These are usually very small flies, yellow or black and appearing shiny due to the virtu ...

, the grass flies. It is found in the

Palearctic The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Sibe ...

. The larva feeds on

Poaceae Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns an ...

such as ''

Calamagrostis epigeios ''Calamagrostis epigejos'', common names wood small-reed or bushgrass, is a species of grass in the family Poaceae which is native to Eurasia and Africa. It is found from average moisture locales to salt marsh and wet habitats.

'' and probably other species of the genus '' Calamagrostis'', and ''

Leymus arenarius ''Leymus arenarius'' is a psammophilic (sand-loving) species of grass in the family Poaceae, native to the coasts of Atlantic and Northern Europe. ''Leymus arenarius'' is commonly known as sand ryegrass, sea lyme grass, or simply lyme grass.

''.Emilia. Petrovna Nartshuk and L. I. Fedoseeva and A review of the grassflies of the genus Meromyza Meigen, 1830 (Diptera, Chloropidae) of the Palaearctic fauna, with a key to the species, analysis of synonymy, host specialization, and geographical distribution: Part 1 ''Entomological Review'' 91(1) · March 2011 DOI: 10.1134/S001387381101009
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.

References

Chloropinae Insects described in 1830 {{Chloropidae-stub