Geomyza tripunctata (Fallén, 1823) 
Identification of most Geomyza species is fraught with difficulty from photographs alone and microscopic examination of the genitalia is the only means of accurate identification. Geomyza tripunctata seems to be fairly widespread in many parts of Nottinghamshire, but the thorax colouration is typically darker than on the two shown in the photographs here - hence the need for accurate determination.  All of the county's records are currently from the west of the Trent Valley, probably due to recorder bias rather than species distribution. Photographed in Market Warsop Cemetery, July 2020.
Nottinghamshire (VC56) distribution of Geomyza tripunctata   
The records for the Nottinghamshire distribution map are currently provided by the following contributors - Sherwood Forest Trust (2008 Oak Tree Heath invertebrate survey). Netherfield Wildlife Group. Nottinghamshire Wildlife Trust. Trevor and Dilys Pendleton. Barry Lygo. Andy Godfrey (2006 Sherwood Heath SSSI invertebrate survey). Stuart Warrington. The National Trust (Clumber Park invertebrate records). Peter Kirby (Ploughman Wood Invertebrate survey 1998 on behalf of the Nottinghamshire Wildlife Trust). 

You can contribute your own records to help us gain an accurate status of this species in Nottinghamshire. Send an Excel spreadsheet of your records via the 'contact us' link at the top of the homepage.

Updated January 2021

copyright © Trevor and Dilys Pendleton ( . .
True Flies etc Photo Gallery - Thumbnail version
True Flies etc Photo Gallery - Text version