The leaf and stem mines of British flies and other insects
 

(Coleoptera, Diptera, Hymenoptera and Lepidoptera)

by Brian Pitkin, Willem Ellis, Colin Plant and Rob Edmunds

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Bucculatrix humiliella Herrich-Schäffer, 1855
[Lepidoptera: Bucculatricidae]

Highland Bent-wing


Bucculatrix humiliella Herrich-Schäffer, 1855. Schmett. Europ. 5: 340, fig. 859
Bucculatrix capreella Krogerus, 1952. Notul. ent Helsingf. 32: 157, fig'd
Bucculatrix obscurella Klemensiewicz, 1899. [Synonymised by Mey, 1999]
Bucculatrix merei Klemensiewicz, 1899.


Leaf-miner: Initially the larva mines the leaflet, leaving a central line of black frass, then grazes the leaflet tips externally, causing withering (British leafminers).

The young larva mines a fine leaf segment completely out, leaving a black, central frass line. Older larvae live free on the the upperside of the leaves, causing window feeding (Bladmineerders van Europa).

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).

Head and feet yellowish brown; body olive green with three length rows of whitish pinacula (Bladmineerders van Europa).

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

Larva pupates in an white ribbed cocoon (Bladmineerders van Europa).

Adult: The adult is not illustrated in UKMoths (check for update). The genitalia are not illustrated by the Lepidoptera Dissection Group (check for update).

Hosts in Great Britain & Ireland:

Asteraceae        
Achillea millefolium Yarrow British Wild Flowers by John Somerville et al. Pitkin & Plant
Achillea millefolium Yarrow British Wild Flowers by John Somerville et al. British leafminers
Tanacetum vulgare Tansy British Wild Flowers by John Somerville et al. British leafminers

Hosts elsewhere:

Asteraceae        
Achillea millefolium Yarrow British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - larvae: June - July (British leafminers).

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Widespread in Britain including Easterness, Leicestershire, South Aberdeenshire, Stafford and Warwickshire (NBN Atlas). First found in Aviemore in 1966. It is fairly common on the riverbanks and verges in the Highlands (British leafminers). See also British leafminers distribution map.

Distribution elsewhere: Widespread in continental Europe including Finland, French mainland, Germany, Latvia, Norwegian mainland, Poland, Slovakia and Sweden (Karsholt and van Nieukerken in Fauna Europaea).

NBN Atlas links to known host species:

Achillea millefolium, Tanacetum vulgare

British and Irish Parasitoids in Britain and elsewhere: Currently unknown.



External links: Search the internet:

Belgian Lepidoptera
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea
NBN Atlas
NHM UK Checklist
UKMoths

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Last updated 29-Apr-2017  Brian Pitkin Top of page