I believe that it is not correct to say that the mosquitoes transmit myiasis. They mechanically transmit fly larvae that cause myiasis. Likewise mosqitoes do not transmit West Nile Fever, they transmit West Nile Virus. If you get infected by West Nile Virus you get West Nile Fever.
It sounds strange associating myiasis transmission to mosquitoes. It has not been established and there is no basis for that. However, the research is yours. I will like to share in the new discovery. Cheers!