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Callisto
denticulella (Thunberg, 1794) Garden Apple Slender Tinea
denticulella
Thunberg, 1794. Insecta Suecia:
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Leaf-miner: The young larvae mine the leaves, causing a gallery followed by a semi-translucent blotch on the upper surface of the leaf. It then vacates this and folds the edge of a leaf down to feed within, usually twice, before pupating externally among detritus (UKMoths). The mine begins as an inconspicuous epidermal corridor, mainly recognisable by its reddish brown frass line. In the next instar a blotch is formed. The mine not starting over a vein, rather lies between two veins. The colour initially is silvery, but soon the mine gets a characteristic onrange-brown tinge. Usually, but by no means invariably, the mine is upper-surface; lower-surface mines keep their original silvery colour. Silk is deposited witihin the mine, but in little quantities and the mine contracts only lightly. The mine hardly contains any frass. After some time the larva leaves the mine and then lives free in a leaf margin that has been folded downwards and fixed with silk. Two such folds are usually made, and eaten out to the upper epidermis (Bladmineerders van Europa). The leaf-mine is also illustrated in 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). Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples). See Patocka (2001b), Patocka and Turcani (2005a) (Bladmineerders van Europa). Adult: The adult is illustrated in UKMoths by Damian Money. The species is included in mothdissection.co.uk. Hosts in Great Britain and Ireland:
Hosts elsewhere:
Time of year - larvae: July-August (British leafminers). Time of year - adults: May and June (UKMoths). Distribution in Great Britain and Ireland:, Callisto denticulella frequents orchards and gardens where apple trees are present (UKMoths). Distributed throughout much of the British Isles, including Cleveland (Marske) (UKMoths); Bedfordshire, Breconshire, Caernarvonshire, Cambridgeshire, Cheshire, Cumberland, Denbighshire, Derbyshire, Dorset, Dumfriesshire, Dunbartonshire, Durham, East Cornwall, East Kent, East Norfolk, East Suffolk, Flintshire, Glamorgan, Hertfordshire, Huntingdonshire, Isle of Wight, Kirkudbrightshire, Lanarkshire, Merionethshire, Middlesex, Montgomeryshire, North Essex, North Hampshire, North Somerset, Shropshire, South Wiltshire, Stafford, West Cornwall, West Gloucestershire, West Kent, West Norfolk, West Suffolk, Westmorland and Worcestershire (NBN Atlas); and the Channel Is. (Fauna Europaea). See also British leafminers distribution map. Also recorded in the Republic of Ireland and Northern Ireland (Fauna Europaea and National Biodiversity Data Centre Map). Distribution elsewhere: Widespread in continental Europe including Austria, Belarus, Belgium, Bulgaria, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania, Luxembourg, Republic of Moldova, Norwegian mainland, Poland, Romania, Russia - Central, East, Northwest and South, Slovakia, Spanish mainland, Sweden, Switzerland, The Netherlands and Ukraine (Fauna Europaea). NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
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| Last updated 11-Jul-2019 Brian Pitkin |  |
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