Callipterinella tuberculata apterae are usually yellowish with a brown head, a reddish-brown dorsal band over the front of the abdomen and a dark quadratic patch on abdominal tergites 4-6. However, the dark markings are very variable. The body length of C. tuberculata apterae is 2.3 to 2.5 mm.

Good photographs required.  Please also state the host species.

Found in colonies on young growth and scattered on older leaves of Silver Birch (Betula pendula).

Apterous males and oviparae are found in September.

Callipterinella tuberculata spends its entire life cycle on Betula pendula and related species. It lays its eggs at the base of developing buds in autumn.

True status in Britain is difficult to determine due to lack of records.

Rarely recorded in Leicestershire and Rutland.

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