The wingspan is 4.9-6.5mm for males and 4.9-6.1mm for females. Adults emerge from late May to mid-September. There might be two generations per year.
The larvae feed on Dorycnium hirsutum and Dorycnium pentaphyllum. They mine the leaves of their host plant. The mine consists of a narrow corridor, running towards the petiole. From there, the larva descends as a stem miner. The whole course of the mine often stains reddish or brown and the frass is hardly visible externally, while the larvae are visible as a yellow swelling in the stem. The mine is frequently in the more terminal shoots, and can relatively easily be found because of the staining. Larvae have been found in January, February, and early April.
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
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 orientella is a moth of the family Nepticulidae. It is found from Portugal and southern France across Liguria and Slovenia and southern central Europe to Greece.
Trifurcula sanctibenedicti is a moth of the family Nepticulidae. It is found in Spain.
Trifurcula hamirella is a moth of the family Nepticulidae. It is found in the Mediterranean region from the Iberian Peninsula to Greece and in Algeria.
Trifurcula stoechadella is a moth of the family Nepticulidae. It is found in the western Mediterranean region, from France and the Iberian Peninsula to Corsica and Italy.
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 subnitidella is a moth of the family Nepticulidae. It is widespread in Europe southward to the northern border of the Sahara in Tunisia and eastward to the Crimea and Asia minor.
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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