Canace nasica
Canace nascia is a European species of Canacidae.

It is a very small (2 mm. long) fly overall greyish or greyish-brown fly with complete wing venation.The interocular space is matte brown .There are two inner orbital bristles, and an upper orbital bristle curved outwards, over the eyes. Face, cheeks
and clypeus are grey. The antennae are black. Short proboscis; palps a little enlarged.
Mesonotum dull brown, the pleurae grey. There are four dorsocentral bristles.
Black legs; The second tergite of the abdomen is enlarged, blackish.   
 For terms see Morphology of Diptera.
It is a  sea-shore or salt-marsh species.

Distribution

Cape Verde Islands, Senegal, England, France, Ireland, Spain, Egypt, Azores, Canary Islands and Madeira Islands.

References

Canacidae
Diptera of Europe
Taxa named by Alexander Henry Haliday
Diptera of Africa
Insects described in 1839