Enteucha acetosae
Encyclopedia
The Pigmy Sorrel Moth is a moth
of the Nepticulidae
family. It is found from Sweden
to the Pyrenees
, Alps
and Serbia
and from Ireland
to Romania
.
The wingspan
is 3-4 mm. There are two to three generations in western and central Europe
The larvae feed on Rumex acetosa, Rumex alpestris and Rumex acetosella
. The mine
the leaves of their host plant. The mine consists of a narrow, hardly widening corridor that makes about five whole or half circles closely around the egg. The leaf tissue around the mine is intensely reddened. There are often several mines in a single leaf. The frass
is deposited in a narrow central line. Pupation takes place outside of the mine.
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 Nepticulidae
Nepticulidae
Nepticulidae is a family of very small moths with a worldwide distribution. They are characterised by eyecaps over the eyes . These pigmy moths or midget moths, as they are commonly known, include the smallest of all living moths, with a wingspan that can be as little as 3 mm...
family. It is found from Sweden
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....
to the Pyrenees
Pyrenees
The Pyrenees is a range of mountains in southwest Europe that forms a natural border between France and Spain...
, Alps
Alps
The Alps is one of the great mountain range systems of Europe, stretching from Austria and Slovenia in the east through Italy, Switzerland, Liechtenstein and Germany to France in the west....
and Serbia
Serbia
Serbia , officially the Republic of Serbia , is a landlocked country located at the crossroads of Central and Southeast Europe, covering the southern part of the Carpathian basin and the central part of the Balkans...
and from 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...
to 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 3-4 mm. There are two to three generations in western and central Europe
The larvae feed on Rumex acetosa, Rumex alpestris and Rumex acetosella
Rumex acetosella
Rumex acetosella is a species of sorrel, also known as Acetosella vulgaris Fourr, bearing the common names sheep's sorrel, red sorrel, sour weed, and field sorrel. The plant and its subspecies are common perennial weeds. It has green arrowhead-shaped leaves and red-tinted deeply ridged stems, and...
. The 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 consists of a narrow, hardly widening corridor that makes about five whole or half circles closely around the egg. The leaf tissue around the mine is intensely reddened. There are often several mines in a single leaf. 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 a narrow central line. Pupation takes place outside of the mine.