Hoverfly Larvae

Hoverfly Larvae

Observation - Hoverfly Larvae - UK and Ireland. Description: Larvae seen crawling over dog rose from living room window. Took a few pics but the camera had trouble focusing on something so small, that and it was raining.They are mm big, translucent in the main but with some reddish bits inside and a bird poop like

Larvae seen crawling over dog rose from living room window. Took a few pics but the camera had trouble focusing on something so small, that and it was raining.They are mm big, translucent in the main but with some reddish bits inside and a bird poop like effect on the back

Wondering if they might be the starting stages of sawfly larvae as we get large amounts of Rose Sawfly in the summer.