Cordilura pudica
Most similar to the rarer C. rufimana and not easy to distinguish - the male genitalia should be checked. Wing length: ♂ 4.6 - 5.8 - 6.9 mm (44); ♀ 5.0 - 6.2 - 7.2 mm (30).
A common species in wetlands and probably the most frequently encountered member of the genus and often abundant, especially in beds of Carex.
Speight (1983)[1] states that it is the most widespread Cordilura in Ireland. Collin (1958)[2] found in "not uncommon" in Scotland, but also in Suffolk and Warks. Adults May to August, but most records in May and June.
World distribution: Palaearctic: Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Ireland, Lithuania, Netherlands, Norway, Poland, Slovakia, Sweden, Switzerland, Russia: northern European regions; Nearctic: Canada, USA.
References
- Cordilura aemula and Microprosopa pallidicauda new to Ireland, Trichopalpus fraternus confirmed as an Irish insect and other Irish records of Scathophagidae (Diptera). Irish Naturalists Journal, 21, pp.165-167., 1983.
- A short synopsis of the British Scatophagidae (Diptera). Transactions of the Society for British Entomology, 13, pp.37-56., 1958.