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Insects of Britain and Ireland: the families of Lepidoptera

L. Watson and M.J. Dallwitz

Lyonetiidae

Excluding Hieroxestidae = Oinophilidae, Opogonidae. Including Bucculatricidae

Adults relatively long-bodied; relatively slender-bodied (wingspan more than 15 times the thoracic width) to medium built (wingspan more than 8 and less than 15 times the thoracic width); wings in repose packed with the forewings directed backwards to cover hindwings and abdomen.

Head rough (at least on the crown). Antennae long to very long; extending to about 0.8–1 times the length of the forewing. Antennae of males simple; non-ciliate. The antennal scape expanded laterally and concave beneath, forming an ‘eye cap’ (usually), or not forming an ‘eye cap’. Ocelli absent. Chaetosemata absent. Maxillary palps much reduced; 1–3 segmented (? - ‘rudimentary’); not folded. Labial palps well developed, or short or rudimentary; drooping, or porrect; 3 segmented. Proboscis fully developed, or absent (‘usually short’); not scaly.

Wingspan (6–)7–10(–12) mm; 10–16 times the thoracic width. Forewings with their apices conspicuously bent up or down when the insect is at rest; narrow; about 3.6–5.7 times as long as wide. Tornus weakly defined to undetectable. Forewings predominantly shining-metallic (e.g., metallic-grey), or exhibiting shining-metallic markings, or neither shining-metallic nor with shining metallic markings. Hindwings narrow-elongate and very long-fringed to neither unusually narrow-elongate nor especially long-fringed; linear to lanceolate; very much narrower than the forewings to quite markedly narrower than the forewings; with a pointed apex. The fringe of the hindwings (1–)3–9 times the width of the membrane. The upper surfaces plain; with neither discal spot nor transverse lines; hindwings with a frenulum.

Neuration of forewings and hindwings dissimilar. Forewings with well developed neuration; 7–10 veined; with 1 anal vein, or with 2 anal veins. The anal veins of the forewings representing 1b only (1c then vestigial), or comprising 1b and 1c. Forewings exhibiting a tubular vein 1c, or lacking a tubular vein 1c. Vein 1b of the forewings simple. Forewings with a discal cell. The transverse vein complete, or incomplete. Discal cell of the forewings without a tubular media (M) vein (likewise the hind-wings). Hindwings with greatly reduced neuration; 3–6 veined; seemingly lacking anal veins; lacking vein 1a; seemingly lacking a tubular vein 1c; without a discal cell. The transverse vein lacking. Veins 3, 4 and 6 may be lacking.

Fore-legs with a tibial epiphysis. Tibiae of middle legs 2-spurred. Posterior tibiae 4-spurred; hairy (with long hairs above and below).

Eggs, larvae and pupae. Eggs smooth or minutely pitted (?). Larval prolegs 10. Larvae concealed feeders; leaf-mining (at least when young). Mining leaves of divers Dicot trees, shrubs and herbs.

Pupae concealed (in a cocoon); on the surface of the ground, or above the ground. Empty pupae protruded from place of concealment.

British representation. Genera 5 (Bedellia, Bucculatrix, Leucoptera, Lyonetia, Paraleucoptera); 23 species (1 adventive). Leucoptera labernella (Laburnum Leaf Miner), Leucoptera malifoliella (Pear Leaf Blister Moth), Lyonetia clerkella (Apple Leaf Miner), etc.

Classification. Microlepidoptera. Suborder Ditrysia. Superfamily Yponomeutoidea (recently re-assigned).

Illustrations. • Leucoptera laburnella (specimen): photo. LYONETIIDAE. Leucoptera laburnella. 10/8/55, Trentham, Staffs. R.G. Warren. • Stainton's representative 'Tineina'. Stainton's TINEINA (Lyonetiidae italicised). 2, Ochsenheimeria birdella; 3, Tinea ganomella; 4, Eriocrania salopiella; 5, Nemophora metallica; 6, Swammerdamia pyrella; 7, Yponomeuta sedella; 8, Plutella xylostella; 9, Ypsolopha dentella; 10, Agonopterix alstroemeriana; 11, Pexicopia malvella; 12, Chrysoesthia drurella; 13, Ypsolopha parenthesella; 14, Schiffermuelleria grandis; 15, Scythris grandipennis; 16, Glyphipteryx equitella; 17, Heliozela resplendella; 18, Argyresthia bonnetella; 19, Caloptilia alchimiella; 20, Coleophora lineola; 21, Bedellia somnulentella; 22, Cosmopteryx lienigiella; 23, Mompha propinquella; 24, Elachista gangabella; 25, Elachista maculicerusella; 26, Emmetia marginea; 27, Phyllonorycter acerifoliella; 28, Phyllonorycter stettinensis; 29, Leucoptera malifoliella; 30, Ectoedemia sericopeza. From Stainton (1854, Plate IX). • Lyonetia clerkella (Autumnal Argyromiges: B. Ent. 284). • Lyonetia clerkella: B. Ent. 284, legend+text. • Lyonetia clerkella: B. Ent. 284, text cont.. • Bucculatrix nigricomella (mainland-European), B. aurimaculella (British form of B. nigricomella), B. cidarella: Stainton 7, I (1862). LYONETIIDAE (BUCCULATRICIDAE). 1, Bucculatrix nigricomella: externally feeding larva (1a), and plant of Chrysanthemum leucanthemum with mined leaves (1b). 2, Bucculatrix nigricomella: externally feeding larva (2a), and gnawed leaf of Chrysanthemum leucanthemum (2b). 3, Bucculatrix cidarella: externally feeding larva (3a), and alder leaf mined and gnawed (3b). Stainton 7, I (1862). • Stainton 7, I (1862): original legend.. • Bucculatrix ulmella, B. bechsteinella (as crataegi), B. demaryella: Stainton 7, II (1862). LYONETIIDAE (BUCCULATRICIDAE). 1, Bucculatrix ulmella: externally feeding larva (1a), and oak leaf mined and gnawed (1b). 2, Bucculatrix bechsteinella: mining larva (2a); externally feeding larva (2a*); hawthorn leaf, mined and with a cocoonet under which the larva moults (2b); gnawed hawthorn leaf (2b*); and cocoon (2c). 3, Bucculatrix demaryella: externally feeding larva (3a); mined and gnawed birch leaf (3b). Stainton 7, II (1862). • Stainton 7, II (1862): original legend.. • Bucculatrix maritima, B. gnaphaliella (mainland-European), B. ratisbonensis (mainland-European): Stainton 7, III (1862). LYONETIIDAE (BUCCULATRICIDAE). 1, Bucculatrix maritima: externally feeding larva (1a), and mined leaf of Aster tripolium (1b). 2, Bucculatrix gnaphaliella: larva (2a), and leaf of Gnaphalium arenarium with mine and cocoon (2b). 3, Bucculatrix ratisbonensis: larva (3a); and piece of gnawed Artemisia campestris leaf, with cocoon at the right (3b). Stainton 7, III (1862). • Stainton 7, III (1862): original legend.. • Bucculatrix frangulella, B. thoracella (as hippocastanella), B. cristatella: Stainton 7, IV (1862). LYONETIIDAE (BUCCULATRICIDAE). 1, Bucculatrix frangulella: externally feeding larva (1a), a mined and gnawed leaf of Rhamnus frangula (1b), and cocoon (1c). 2, Bucculatrix thoracella: externally feeding larva (2a), and mined an gnawed lime leaf (2b). 3, Bucculatrix cristatella: larva (3a), and a gnawed yarrow leaf with the cocoon near its tip (3b). Stainton 7, IV (1862). • Stainton 7, IV (1862): original legend.. • Leucoptera, Bucculatrix. • Larvae of 'Tineina' (Stainton). 1, OECOPHORIDAE: Diurnea fagella larva, and (1a) shown between united birch leaves. 2, PSYCHIDIDAE: Taleporia(?) larva, showing cases attached to lichen (2a), and a single case enlarged. 3, YPONOMEUTIDAE: Ochsenheimeria taurella, and (3a) a section of grass stem showing the larva in situ. 4, TINEIDAE: Tineola bisselliella, with a gallery formed in feathers (4a); 4b, a case of Tinea pellionella on a feather. 5, INCURVARIIDAE: Incurvaria praelatella, with a partially devoured wild strawberry leaf (5a), and a case from the underside. 6, Incurvaria pectinea, and (6a) the larva in its case feeding on a fallen oak leaf. 7, Lampronia capitella, with (7a) a currant shoot withering from the effects of the larva feeding in the stem. 8, YPONOMEUTIDAE: Swammerdamia pyrella, with (8a) the larva in its web between united cherry leaves. 9, Yponomeutidae-Plutellinae: Plutella porrectella, and (9a) feeding on a Hesperis leaf. 10, GLYPHIPTERIGIDAE: Orthotelia sparganella, with (10a) an eaten stem of Sparganium. 11. OECOPHORIDAE: Depressaria sp., with (11a) a leaf of Centaurea nigra distorted by its attentions. 12, GELECHIIDAE: Anacampsis temerella, with (12a) a sallow leaf tenanted by it. 13, Metzneria aestivella, with (13a) a sectioned fruiting head of Carlina showing the feeding larva in situ. 14, OECOPHORIDAE: Crassa unitella, and (14a) a piece of decayed wood burrowed by the larvae. 15, GLYPHIPTERIGIDAE: Glyphipteryx equitella, with (15a) shoots of Sedum acre showing the middle one bleached by excavations of the larva. 16, YPONOMEUTIDAE: Argyresthia bonnetella, with (16a) hawthorn shoots eaten by the larva. 17, GRACILLARIIDAE: Caloptilia alchimiella, with (17a) an oak lead exhibiting a cone formed by the larva. 18, OECOPHORIDAE: Agonopterix angelicella, with (18a) its cone on a hawthorn leaf. 19, COLEOPHORIDAE: Coleophora follicularis, with (19a) a mined leaf of Eupatorium, and (19b) the case enlarged. 20, LYONETIIDAE: Bedellia somnulentella, with (20a) a mined Convolvulus arvensis leaf. 21, EPERMENIIDAE: Epermenia chaerophyllellus, with (21a) a portion of Anthriscus sylvestris leaf eaten half through by it. 22, MOMPHIDAE: Chrysoclista linneella, with (22a) a piece of inner bark of lime burrowed by it. 23, ELACHISTIDAE: Elachista maculicerusella. with (23a) a mined Phragmites leaf blade. 24, TISCHERIIDAE: Emmetia marginea, and (24a) a mined bramble leaf. 25, GRACILLARIIDAE: Phyllonorycter quinnata, with (25a) a mined Carpinus leaf. 26, LYONETIIDAE: Leucoptera laburnella, with (26a) a mined Laburnum leaf. 27, Bucculatrix bechsteinella (Bucculatricidae), and a hawthorn leaf eaten half through. 28, NEPTICULIDAE: Nepticula sp., with (28a) a mined Potentilla leaf. From Stainton (1854, Plate X). • Leucoptera, Bucculatrix: neuration.


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Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. Insects of Britain and Ireland: the families of Lepidoptera. Version: 14th April 2022. delta-intkey.com’.

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