Length 1-3mm, shiny with no wax powdering, and coloured dark red-brown to blackish brown. The siphunculi are completely black (cf. Macrosiphoniella oblonga which has siphunculi which are mainly dark brown but paler at the base). The siphunculi are relatively short and thick, shorter than the black cauda, and with reticulation on the distal 0.6-0.8 of their length.

Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters.

Found on cultivated Chrysanthemums.

Rare.

Rare.

https://influentialpoints.com/Gallery/Macrosiphoniella_sanborni_large_chrysanthemum_aphid.htm