The wingspan is 4.2-5.8mm for males and 4.4-5.4mm for females. Larvae have been found in September and October and adults are on wing from May (March in Tunisia) to early September.
The larvae feed on Lotus corniculatus and possibly other Lotus species. They mine the bark of their host plant. The mine consists of a long gallery in the bark of the stem. The larva first mines down, then goes up the stem in a rather straight line, or partly encircling the stem, occasionally going down again in the last part of the mine. At first, the mine is narrow, reddish brown, with straight edges, but later becomes as wide as the stem, with irregular margins, becoming silvery white in fresh mines. The frass is brown and deposited in a central line. Pupation takes place outside of the mine.
Trifurcula headleyella is a moth of the family Nepticulidae. It is found in all Europe, with the possible exception of Ireland and the Mediterranean islands
Stigmella obliquella is a moth of the family Nepticulidae which feeds on willow and can be found in Asia and Europe. It was first described by Hermann von Heinemann in 1862.
Trifurcula lavandulae is a moth of the family Nepticulidae. It is found in Spain and southern France.
Trifurcula anthyllidella is a moth of the family Nepticulidae. It is found in Spain, on Mallorca and along the south and east coast from Cadiz to Girona on limestone, up into the mountains.
Trifurcula ridiculosa is a moth of the family Nepticulidae. It is only known from the Canary Islands: Tenerife, La Palma, La Gomera, El Hierro and Madeira, including Porto Santo island.
Trifurcula peloponnesica is a moth of the family Nepticulidae. Up to now only known with certainty from Peloponnesus in Greece. In Corsica, mines have been found that could very well belong to this species.
Trifurcula cryptella is a moth of the family Nepticulidae. It is widespread throughout Europe, northwards to southern parts of Norway and Sweden, eastwards to Poland and the Balkan Peninsula, and south to the Mediterranean countries, but there it is rare and confined to mountainous regions. In Italy it has only been recorded from the northern part, in Portugal in the Serra da Estrêla, in Spain in the Cantabrian Mountains and possibly the Sierra Nevada. It is absent from the Mediterranean islands.
Trifurcula eurema is a moth of the family Nepticulidae. It is widespread throughout Europe, northwards to southern Norway and Sweden, Poland and the Baltic Region. It is also found in the Mediterranean region, including the larger Mediterranean islands, east to Bulgaria, Asiatic Turkey and Ukraine.
Trifurcula manygoza is a moth of the family Nepticulidae. It is only known to be from Croatia and north-western Greece. But is probably also present in other Balkan countries.
Trifurcula globulariae is a moth of the family Nepticulidae. First described by Klimesch in 1975, it is only known from North Macedonia.
Trifurcula josefklimeschi is a moth of the family Nepticulidae. It is found south of the line running from France to the Czech Republic and Ukraine.
Trifurcula sanctibenedicti is a moth of the family Nepticulidae. It is found in Spain.
Trifurcula thymi is a moth of the family Nepticulidae. It is found from Germany and Poland to the Alps and Hungary, as well as in France and the Iberian Peninsula.
Trifurcula pallidella is a moth of the family Nepticulidae. It is the type species of the genus Trifurcula. It is found from south-eastern Germany (Bayern), east into Bohemia, Moravia, Slovakia, adjacent south-eastern Poland, much of Austria, both along the Danube and east and south of the Alps, extending through the Balkans to southern Greece (Peloponnesus) and Crete, eastwards through Ukraine and Russia to the Volga, and one questionable record from Turkey. To the west it occurs in northern Italy almost reaching France, just extending into Switzerland (Ticino), and throughout Italy to Sicily and Corsica.
Trifurcula austriaca is a moth of the family Nepticulidae. It is found in Austria, the Czech Republic and Slovakia. It has also been reported from Greece.
Trifurcula immundella, the broom pygmy moth, is a moth of the family Nepticulidae. It is found in western Europe, wherever the host plant occurs.
Trifurcula saccharella is a moth of the family Nepticulidae. It is found in Ohio, United States.
Trifurcula victoris is a moth of the family Nepticulidae. It is only known from the extremely dry region in the southeast part of the Province of Almería in Spain.
Trifurcula coronillae is a moth of the family Nepticulidae. It is found along the Mediterranean coast of Spain, but probably has a wider range.
Trifurcula squamatella is a moth of the family Nepticulidae. It was described by Henry Tibbats Stainton in 1849. It is found in most of Europe.
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