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

Join us on Facebook

Tachyerges decoratus (Germar, 1821)
[Coleoptera : Curculionidae]


Salius decoratus Germar, 1821
Tachyerges decoratus
(Germar, 1821)
.


Leaf-miner: Full depth, broad, transparent, brown, corridor that descends from the leaf tip along tje leaf margin. Frass in a stripe along the outer side of the mine. The mine ends in a round excision (Bladmineerders van Europa).

Larva: The larvae of beetles have a head capsule and chewing mouthparts with opposable mandibles and lack abdominal legs (see examples).

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

Hosts in Great Britain & Ireland:

Salicaceae        
Salix purpurea Purple Willow British Wild Flowers by John Somerville et al. Pitkin & Plant

Hosts elsewhere:

Salicaceae        
Populus nigra Black-poplar British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Salix euxina or x fragilis Crack-willow or Hybrid Crack-willow British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Salix pentandra Bay Willow British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Salix purpurea Purple Willow British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Salix triandra Almond Willow British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - larvae: May-June and August (Hering, 1957).

Time of year - adults: April and July-August (Augustin, 1998a). However, Scherf (1964a) states that there is but one generation per year (Bladmineerders van Europa).

Distribution in Great Britain & Ireland: East Kent, North Hampshire and West Suffolk (NBN Atlas).

Distribution elsewhere: Widespread in continental Europe including Bulgaria, ? Corsica, French mainland, Germany, Italian mainland, Moldova, Poland, Romania, Russia - East, Slovakia and Yugoslavia (Alonso-Zarazaga in Fauna Europaea).

NBN Atlas links to known host species:

Populus nigra, Salix fragilis, Salix pentandra, Salix pupurea, Salix triandra

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

External links: Search the internet:

Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life, as Salius decoratus
Fauna Europaea
NBN Atlas
NHM UK Checklist

Find using Google
Find using Google Scholar
Find images using Google


XHTML Validator Last updated 13-May-2017 Brian Pitkin Top of page