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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Hydrellia pubescens Becker, 1926
[Diptera: Ephydridae]


Hydrellia pubescens Becker, 1926. Ephydridae. - Fliegen palaearkt. Reg. 6(1): 71.
Hydrellia nasturtii Collin, 1928. Entomologist's mon. Mag. 64: 128.


Leaf-mine: Details unknown.

Larva: The larvae of flies are leg-less maggots without a head capsule (see examples). They never have thoracic or abdominal legs. They do not have chewing mouthparts, although they do have a characteristic cephalo-pharyngeal skeleton (see examples), usually visible internally through the body wall.

Puparium: The puparia of flies are formed within the hardened last larval skin or puparium and as a result sheaths enclosing head appendages, wings and legs are not visible externally (see examples).

Comments: Irwin and Chandler in Chandler (1978) did not indicate whether their host record was British or Foreign and are therefore tentatively included under 'Hosts in Britain' and 'Hosts elsewhere'.

Hosts in Great Britain & Ireland:

Brassicaceae        
? Nasturtium officinale Water-cress British Wild Flowers by John Somerville et al. Irwin and Chandler in Chandler, 1978: 225, as Hydrellia nasturtii

Hosts elsewhere:

Brassicaceae        
? Nasturtium officinale Water-cress British Wild Flowers by John Somerville et al. Irwin and Chandler in Chandler, 1978: 225, as Hydrellia nasturtii
Nasturtium       Hering, 1957

Time of year - mines: Currently unknown.

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Recorded in Britain by Irwin (1978); South Hampshire and Surrey (NBN Atlas).

Distribution elsewhere: Widespread in continental Europe including Belgium, Bulgaria, French mainland, Greek mainland, Italian mainland, Sardinia, Sicily and Yugoslavia (Zatwarnicki, 2004 in Fauna Europaea).

NBN Atlas links to known host species:

Nasturtium officinale

British and Irish Parasitoids in Britain and elsewhere:

Chalcidoidea   
Cyrtogaster clavicornis Walker, 1833 Pteromalidae: Pteromalinae
Ichneumonoidea  
Ademon decrescens (Nees, 1811) Braconidae: Opiinae


External links: Search the internet:
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea
NBN Atlas
NHM UK Checklist
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