Pterocallis alni

Alternative names
Common Alder Aphid
Description

The body length of Pterocallis alni apterae is 1.3 to 2.0 mm. Both the winged and wingless adult viviparae of P. alni are yellowish white to yellowish green. For a more detailed description of this species please use the ‘Further info:’ link below.

Identification difficulty
Recording advice

Please add good quality images to support your record, and also state the host plant.

Habitat

In Britain Pterocallis alni is found almost exclusively on Common Alder, living dispersed on undersides of leaves.

When to see it

Sexual forms occur about September-November.

Life History

Sometimes attended by ants.

UK Status

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

VC55 Status

Rarely recorded in Leicestershire and Rutland.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species profile

Species group:
insect - true bug (Hemiptera)
Kingdom:
Animalia
Order:
Hemiptera
Family:
Aphididae
Records on NatureSpot:
2
First record:
02/07/2023 (Graves, Hazel)
Last record:
26/04/2025 (Calow, Graham)

Total records by month

% of records within its species group

10km squares with records

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