Yellow cereal fly
Opomyza florum
Identification
The yellow cereal fly is orangey / yellow in appearance with distinctive black spots on the transparent wings.The maggots are very similar to those of the wheat bulb fly except that they are pointed at both ends and are yellowish / white in appearance and are up to 7 mm in length when fully grown.Opomyza and wheat bulb fly maggots can be found together in the same crops as they both feed at the same time of year.
 
Symptoms
Opomyza maggots do not leave entry holes in the same way as wheat bulb fly maggots.  However, the feeding of both species creates exactly the same `deadhearts`.