Elachista dimicatella is a moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 of the Elachistidae

Elachistidae

| image = Elachista rufocinerea 2.jpg| image_width = 240px| image_caption = Adult Elachista rufocinerea,demonstrating its tiny size versus an aphid and a spider mite | regnum = Animalia| phylum = Arthropoda| classis = Insecta...

 family. It is found in the mountains from Germany

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 and Poland

Poland

Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

 to the Pyrenees

Pyrenees

The Pyrenees is a range of mountains in southwest Europe that forms a natural border between France and Spain...

, Italy

Italy

Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 and Romania

Romania

Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

.

The wingspan

Wingspan

The wingspan of an airplane or a bird, is the distance from one wingtip to the other wingtip. For example, the Boeing 777 has a wingspan of about ; and a Wandering Albatross caught in 1965 had a wingspan of , the official record for a living bird.The term wingspan, more technically extent, is...

 is about 10 mm.

The larvae feed on Alopecurus pratensis, Anthoxanthum odoratum

Anthoxanthum odoratum

-Introduction:Anthoxanthum odoratum, known as sweet vernal grass, holy grass, vanilla grass or buffalo grass, is a short-lived grass found wild in acidic grassland in Eurasia. It is also grown as a lawn grass and a house plant, due to its sweet scent, and can also be found on unimproved pastures...

, Calamagrostis arundinacea

Calamagrostis arundinacea

Calamagrostis arundinacea Roth is a species of bunch grass in the Poaceae family, native to Eurasia....

, Calamagrostis villosa, Dactylis glomerata

Dactylis glomerata

Dactylis glomerata, Cock's-foot and orchard grass, is a common species of grass in the genus Dactylis, native throughout most of Europe, temperate Asia, and northern Africa.-Distribution:...

, Deschampsia cespitosa, Holcus mollis, Milium effusum

Milium effusum

Milium effusum L. is a species of grass in the Poaceae family, native to damp forests of the Holarctic Kingdom.-External links:*...

, Phleum alpinum

Phleum alpinum

Phleum alpinum is a species of grass known by the common name Alpine timothy.-Distribution:Phleum alpinum has a circumboreal distribution, inhabiting northern areas of the Northern Hemisphere, as well as extending down through the Americas to southern South America...

, Poa alpina

Poa alpina

Poa alpina, commonly known as Alpine Meadow-grass, is a species of meadow grass.It is noted for being viviparous: Its seeds are evolved to germinate while still connected to the parent plant, in order to give them a safe head start....

, Poa chaixii

Poa chaixii

Poa chaixii is a species of perennial grass native to Europe and temperate Asia. Its culms are erect or ascending, ranging from 60–120 cm long, with leaf-blades flat or conduplicate, from 15–45 cm long by 5–10 mm wide.- References :* * * * J. E. Gilibert, Fl. Delph. 1:7. 1788...

, Sesleria albicans, Sesleria caerulea

Sesleria caerulea

Sesleria caerulea is a species of perennial grass in the Poaceae family, native to Europe.- References :* * * Animadv. bot. spec. alt. 2:18, t. 6, fig. 3-5. 1764...

, Sesleria sadlerana tatrae. They mine

Leaf miner

Leaf miner is a term used to describe the larvae of many different species of insect which live in and eat the leaf tissue of plants. The vast majority of leaf-mining insects are moths , sawflies and flies , though some beetles and wasps also exhibit this behavior.Like Woodboring beetles, leaf...

 the leaves of their host plant. The mine starts just below the leaf tip. The frass

Frass

Frass is the fine powdery material phytophagous insects pass as waste after digesting plant parts. It causes plants to excrete chitinase due to high chitin levels, it is a natural bloom stimulant, and has high nutrient levels. Frass is known to have abundant amoeba, beneficial bacteria, and fungi...

is deposited in parallel strands. Pupation takes place outside of the mine. Larvae can be found from the end June to early July.