Identification file

Macrosiphum albifrons Essig, 1911

A very large species: 3.2-4.5 mm

Apterous large-sized, blue, green, grey and covered with a whitish wax
Antennae equal to or greater than length of body with processus terminalis long (1), small rhinaria shown (20-40) on segment III
Cornicles long and straight (2), often pale at base, reticulated and dark  at tip
Cauda pale, broad (3)

Alate large-sized,  blue, green, grey, or pink, variably covered with whitish wax
Antennae dark with proximal part of segment III paler, equal to or greater than length of body with processus terminalis long (4), show small rhinaria (30-44) on  segment III
Frons concave with margins divergent (5)
Head, prothorax and thorax dark, abdomen a light tone without pigmentation
Cornicles long and straight, light to slightly pigmented (6) and often lighter at base, reticulated at tip
Cauda broad and long (7)
Ends of femurs (8), tibias and tarsi (9) dark

Species file