Urophora cardui (Linnaeus, 1758), (thistle stem gall-fly)


8 Oct 2017 at OSGR: ST90 in Dorset, England

Record Summarygall on stem of Creeping Thistle
Found asFeeding traces
Date8 October 2017
Reared, cultured etc(Date may be unnatural as specimen was cultured, reared, grown or otherwise kept in captivity)
Associated organismCirsium arvense
OS grid refOSGR: ST90
Lat/Lon50° 50’ N, 2° 0’ W
Vice CountyDorset, VC no: 9
CountryEngland
Voucher8 Oct 2017[A]
(Please quote this in any queries about this record)

Notes:

Reared. Overwintered in the knotted end of a pair or tights under a hedge in the garden, protected from squirrels by the wire mesh cover from an old hamster cage. In spring the galls were transferred to a plastic live-food box with damp soil in the base.

GENDER EMERGENCE DATE
Male 14th June 18 (photographed 15th)
Female 16th June 18 (photographed 17th)
Female c. 27th June.

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photomicrographs:

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