title: Euthycera chaerophylli
text: # Euthycera chaerophylli
  
  Euthycera chaerophylli is a species of fly in the family Sciomyzidae, the marsh flies or snail-killing flies.
  
  ## Distribution
  
  This species can be found in most of Europe and in the Near East.
  
  ## Description
  
  Euthycera chaerophylli can reach a length of about 10 millimetres (0.39 in). This fly has a slender body. The gray thorax shows 4 lines of brown spots. The prominent eyes are reddish. The head is yellowish. The yellowish antennae are forward-pointing. The wings are mottled with greyish spots.
  
  ## Biology
  
  These flies are univoltine and overwinter in the puparia. The larvae develop in slugs. They develop inside body of the host (endoparasitoids), mainly Deroceras species.
  
  