Hi, can anyone identify this bug of which has infested my black elder tree.
They measure up to approx. 25mm and grip very tightly to the plant.
CLOSED: CLOSED: CLOSED: What\\\\\\\\\\\\\\\'s this bug
Can you provide additional images that would show this creature's head and side(s)?
It appears to be a larva of a fly in the family Syrphidae (hover/flower flies). Ones like these are predators on small, soft-bodied insects, especially aphids. see http://www.microscopy-uk.org.uk/mag/imgmay07/larva.jpg for an image and http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artmay07/cd-hoverflies.html for more detailed information.
Many thanks. That makes sense because the plant is covered in black fly
Will these larvae have any harmful effects on the plant
Great that's good news. Many thanks for your help. Greatly appreciated