Elachista cahorsensis
Encyclopedia
Elachista cahorsensis is a moth
of the Elachistidae
family. It is found from Great Britain
, Ireland
and Germany
to the Pyrenees
.
The wingspan
is about 8 mm.
The larvae feed on Festuca rubra
. They mine
the leaves of their host plant. The mine starts as a small gallery close to the base of the leaf. It ascends to just under the tip of the leaf, and finally widens to the full width of the blade. The frass
is deposited in the basal part of the mine. Larvae can be found in July and again from September to November. They are pale grey with a semi-transparant, reddish brown head.
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 from Great Britain
Great Britain
Great Britain or Britain is an island situated to the northwest of Continental Europe. It is the ninth largest island in the world, and the largest European island, as well as the largest of the British Isles...
, Ireland
Ireland
Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...
and 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...
to the Pyrenees
Pyrenees
The Pyrenees is a range of mountains in southwest Europe that forms a natural border between France and Spain...
.
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 8 mm.
The larvae feed on Festuca rubra
Festuca rubra
Festuca rubra is a species of grass known by the common name red fescue. It is found worldwide and can tolerate many habitats and climates; it generally needs full sun to thrive...
. 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 as a small gallery close to the base of the leaf. It ascends to just under the tip of the leaf, and finally widens to the full width of the blade. 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 the basal part of the mine. Larvae can be found in July and again from September to November. They are pale grey with a semi-transparant, reddish brown head.