Agromyza nigrociliata [Diptera: Agromyzidae]

Agromyza nigrociliata Hendel, 1931
[Diptera: Agromyzidae]

Agromyza nigrociliata Hendel, 1931. Fliegen palaearkt. Reg.6 (2): 139.
Agromyza nigrociliata Hendel, 1931; Spencer, 1972. Handbk ident. Br. Ins. 10(5g): 10, 32 (fig. 82), 33, 122, 124, 126.
Agromyza nigrociliata Hendel, 1931; Spencer, 1976. Fauna ent. Scand. 5(1): 129-130, figs 224-5.
Agromyza nigrociliata Hendel, 1931; Spencer, 1990. Host specialization in the world Agromyzidae (Diptera) : 356, 359, 360 (fig. 1345).

Mine of Agromyza nigrociliata on Arrhenatherum elatius. Image: Willem Ellis (Source: Bladmineerders van Europa)

Mine of Agromyza nigrociliata on Arrhenatherum elatius
Image: Willem Ellis (Bladmineerders van Europa)

Leaf-mine: The young larva first feeds towards the apex of the leaf, later turning and feeding downwards. Several larvae can occur together in a single leaf. Pupation external (Spencer, 1976: 130).

Upper-surface, greenish, gradually widening corridor, at first running towards the leaf tip, then reverses. Through fusion of several mines the final mine is often communal. Frass in backish green grains, often washed out. Pupation outside the mine (Bladmineerders van Europa).

Larva: The larva is described by de Meijere (1925), Hering (1953), Darvas and Papp (1985) and Darvas, Skuhravá and Andersen (2000).

Puparium: Reddish-brown; posterior spiracles each with 3 bulbs (Spencer, 1976: 130). The puparium is illustrated in Bladmineerders van Europa.

Agromyza nigrociliata puparium
Image: Willem Ellis (Bladmineerders van Europa)

Comments: A potentially serious pest on cereals.

Hosts in Britain:

Poaceae
Arrhenatherum	elatius	False Oat-grass	Spencer, 1972: 122
Dactylis			Robbins, 1991: 136
Elymus			Pitkin and Plant
Elymus	caninus	Bearded Couch	Spencer, 1972: 122
Hordeum	murinum	Wall Barley	Spencer, 1972: 124
Phalaris			Robbins, 1991: 136
Phalaris	arundinacea	Reed Canary-grass	Robbins, 1989: 19
Secale	cereale	Rye	Spencer, 1972: 124
Triticum	aestivum	Bread Wheat	Spencer, 1972: 125

Hosts elsewhere:

Poaceae
Agropyron			Spencer, 1990: 356
Apera	spica-venti	Loose Silky-bent	Spencer, 1976: 130
Apera	spica-venti	Loose Silky-bent	Bladmineerders van Europa
Arrhenatherum	elatius	False Oat-grass	Spencer, 1976: 130
Arrhenatherum	elatius	False Oat-grass	Bladmineerders van Europa
Avena			Bladmineerders van Europa
Avenula	versicolor		Bladmineerders van Europa
Dactylis	glomerata	Cock's-foot	Bladmineerders van Europa
Elymus	caninus	Bearded Couch	Spencer, 1976: 130
Elymus	caninus		Bladmineerders van Europa, as Roegneria
Elymus	repens	Common Couch	Bladmineerders van Europa
Hordeum			Spencer, 1990: 356
Hordeum	murinum	Wall Barley	Spencer, 1976: 130
Hordeum	murinum	Wall Barley	Bladmineerders van Europa
Phalaris	arundinacea	Reed Canary-grass	Bladmineerders van Europa
Secale			Spencer, 1990: 356
Secale	cereale	Rye	Spencer, 1976: 130
Secale	cereale	Rye	Bladmineerders van Europa
Triticum	aestivum	Bread Wheat	Spencer, 1976: 130
Triticum	aestivum	Bread Wheat	Spencer, 1990: 356
Triticum	aestivum	Bread Wheat	Bladmineerders van Europa

Time of year - mines: June (Bladmineerders van Europa).

Time of year - adults: June-July.

Distribution in Great Britain and Ireland: Widespread in Britain including London (Hampstead), Surrey (Colley Hill, Epsom and Kew), Cornwall (Carbis Bay) (Spencer, 1972: 33), Midlothian (Morningside and Braiud Burn), Fife (Aberdour), East Lothian (Aberlady), Dunbarton (Bonhill) (Bland, 1994c: 81), Warwickshire (Hartshill) (Robbins, 1991: 136), Berkshire, Cambridgeshire, Glamorgan, North Lincolnshire, North Somerset, Oxfordshire, South-west Yorkshire, Shropshire, Surrey, West Kent, West Sussex and Worcestershire (NBN Gateway - N.B. includes Watsonian Vice Counties having publicly available records that fall within or overlap the vice county border at 10km resolution or better i.e. a record for a vice county may relate to an adjacent vice county - for included datasets see NBN Grid map below).

NBN Grid map: Note that not all datasets on the NBN Gateway may be available on the map below. If you are an NBN Gateway registered user you can request access for missing datasets via the link 'Open interactive map in new window' below.

Distribution elsewhere: Widespread in continental Europe including Denmark and Sweden (Spencer, 1976: 130), Belgium (Bladmineerders van Europa), Germany (Spencer, 1976: 546), Austria, Belarus, Czech Republic, Estonia, French mainland, Hungary, Lithuania, Poland, Slovakia, Spanish mainland and Switzerland (Martinez in Fauna Europaea).

Also recorded in the East Palaearctic (Martinez in Fauna Europaea).

NBN interactive distribution map(s) of known host species in Great Britain and Ireland and elsewhere:

Apera spica-venti, Arrhenatherum elatius, Dactylis glomerata, Elymus caninus, Elymus repens, Hordeum murinum, Phalaris arundinacea, Secale cereale, Triticum aestivum

Parasitoids in Britain and elsewhere: Unknown.


External links:	Search the internet:
Biodiversity Heritage Library Bladmineerders van Europa British leafminers Encyclopedia of Life Fauna Europaea [128917] NBN Gateway	Find using Google Find using Google Scholar Find images using Google


	Last updated 19-Jan-2012 Brian Pitkin