Family Opomyzidae

Geomyza apicalis

Geomyza apicalis

Identification: Propleuron without strong bristles, apical wing cloud covering apex of M1+2, thorax brownish (at least partly), posterior crossvein longer than anterior crossvein, wings very narrow and pointed at the tip.

Geomyza balachowskyi

Geomyza balachowskyi

This fly is a member of a confusing species group, but the species with which it has been confused are not found in North America.

Geomyza combinata agg.

Geomyza combinata agg.

Only two species in the combinata group are currently found in Britain – they are Geomyza balachowskyi and G. hackmani . Separation of these two species on male genitalia is extremely difficult, and females cannot be separated. For this reason we hav

Geomyza tripunctata

Geomyza tripunctata

A small fly with very distinctive patterning on the wings, though this is similar to other Geomyza species. The abdomen colour is varied, from red-brown to black. Peaking in summer, but may be seen in most months of the year. Larvae tunnel in the ste

Opomyza florum

Opomyza florum

5 to 5.5 mm. Orange species with a brown abdomen and with four dark wing markings. Meadows, fields of cereal crops and water margins. Flies hatch in June and July, and will be found in grassland and well wooded areas until late August, then they star

Opomyza germinationis

Opomyza germinationis

Identification: Abdomen with dark median stripe which expands on posterior part of each tergite, occasionally abdomen entirely dark; male, apex of cercus with sparse, fine setae. Non-native, introduced from Europe in the 20th century. Its range is in

Opomyza germinationis agg.

Opomyza germinationis agg.

Although Opomyza germinationis is a common and widespread fly, it is hard to distinguish from Opomyza petrei so the two are often recorded as an aggregate - as represented on this page. Both species are largely dull orange though the abdomen is grey

Opomyza germinationis sensu stricto

Opomyza germinationis sensu stricto

A small orange-grey fly with dark spotted wings. Although this species usually has more extensive darkening on the front margin of the wings it is very similar to other members of the group and detailed examination is needed to determine to species l

Opomyza petrei

Opomyza petrei

This small (c3mm) dull orange fly has dark-spotted wings, a grey abdomen and a thin triangle mark in the centre of the thorax. See ID checklist for more details. Provide details of how the specimen was identified and the key features observed (ideall

Geomyza acutipennis

Geomyza acutipennis

Geomyza advena

Geomyza advena

Geomyza combinata

Geomyza combinata

Geomyza hackmani

Geomyza hackmani

Geomyza majuscula

Geomyza majuscula

Geomyza martineki

Geomyza martineki

Geomyza subnigra

Geomyza subnigra

Geomyza venusta

Geomyza venusta

Opomyza australis

Opomyza australis

Opomyza capensis

Opomyza capensis

Opomyza punctata

Opomyza punctata

Opomyza punctella

Opomyza punctella

Opomyza thalhammeri

Opomyza thalhammeri