Months sighted in garden
Large knapweed aphid
Uroleucon jaceae
An informal survey of the plant and animal life living in or visiting the grounds of Pointfield, Kelso since 2015
Hemiptera
Flat bodied black (anterior) to amber-brown (posterior) aphids with rows of small marginal tubercles along its back. Legs with femur yellow near body becoming black distally: tibia and tarsii black. Antenae slightly shorter than body; siphunculi well developed, black. Present on knapweed (Centaurea nigra) in the wildflower border.