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Leaf-miner: Egg at the upperside or underside of the leaf. The mine begins as a long narrow corridor with a linear frass line. The corridor abruptly widens into a blotch that in the end may occupy almost an entire leaflet. The blotch mostly starts at the base of the leaflet, and here also most frass is concentrated. Pupation generally within the mine; in rare cases the larva leaves the mine by an exit slit in the lower epidermis (Bladmineerders van Europa).

Initially forms a slender gallery at the leaf edge and then doubles back, along the original workings, towards the petiole. It then forms a blotch, which occupies the whole leaf. the frass is deposited in the base of the leaf. The mine is similar to that formed by T.cryptella (British leafminers).

Larva: The larvae of moths have a head capsule and chewing mouthparts with opposable mandibles (see video of a gracillarid larva feeding), six thoracic legs and abdominal legs (see examples).

Pale yellow, seeming green when still in the mine. The larva is described by Gustafsson and van Nieukerken (1990a); thorax 1-3 dorsally with 10, 10, and 8 pairs of setae, respectively (Bladmineerders van Europa).

Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).

Adult: The adult is not illustrated in UKMoths (check for update). The species is included in mothdissection.co.uk.

Hosts in Great Britain and Ireland:

Fabaceae
Lotus	corniculatus	Common Bird's-foot-trefoil		Pitkin & Plant

Hosts elsewhere:

Fabaceae
Dorycnium	hirsutum	Canary Clover		Bladmineerders van Europa
Dorycnium	pentaphyllum	Badassi		Bladmineerders van Europa
Dorycnium	rectum			Bladmineerders van Europa
Lotus	corniculatus	Common Bird's-foot-trefoil		Belgian Lepidoptera
Lotus	corniculatus	Common Bird's-foot-trefoil		Bladmineerders van Europa
Lotus	cytisoides			Bladmineerders van Europa
Lotus	ornithopodioides	Southern Bird's-foot-trefoil		Bladmineerders van Europa
Lotus	pedunculatus	Greater Bird's-foot-trefoil		Belgian Lepidoptera
Lotus	pedunculatus	Greater Bird's-foot-trefoil		Bladmineerders van Europa
Lotus	pedunculatus	Greater Bird's-foot-trefoil		Bladmineerders van Europa, as Lotus uliginosus
Tetragonolobus	maritimus	Dragon's-teeth		Bladmineerders van Europa
Tetragonolobus	maritimus	Dragon's-teeth		Belgian Lepidoptera

Time of year - larvae: July to October (Bladmineerders van Europa).

Time of year - adults: Currently unknown.

Distribution in Great Britain and Ireland: Britain including Durham, Isle of Wight, North Hampshire and West Cornwall (NBN Atlas).

Also recorded in the Republic of Ireland (Fauna Europaea and National Biodiversity Data Centre Map).

Distribution elsewhere: Widespread in continental Europe including Austria, Croatia, Czech Republic, Danish mainland, European Turkey, French mainland, Germany, Greek mainland, Hungary, Italian mainland, Macedonia, Norwegian mainland, Portuguese mainland, Sardinia, Slovakia, Slovenia, Spanish mainland, Sweden, Switzerland and The Netherlands (Fauna Europaea).

NBN Atlas links to known host species:

British and Irish Parasitoids in Britain and elsewhere: