Illinoia liriodendri
The body length of an adult Illinoia liriodendri aptera is 1.7 to 2.5 mm. I. liriodendri apterae are spindle shaped and pale green, lightly dusted with wax. There are also yellowish and pink-red forms. For a more detailed description of this species please use the ‘Further info:’ link below.
Please add good quality images to support your record, and also state the host plant.
Illinoia liriodendri feeds on undersides of the leaves of Tulip-tree (Liriodendron tulipifera). Dense populations can build up resulting in large deposits of honeydew on the leaves.
Sexual forms occur in autumn.
The aphids are restricted to the undersides of the leaves where, early in the season, the clusters of the nymphs can be found behind each of the adult viviparous females
True status in Britain is difficult to determine due to lack of records.
Rarely recorded in Leicestershire and Rutland.
Peter Smith
Leicester, Abbey Park
07 July 2023
Alate
Melinda Bell
Barrow on Soar, Humphrey Perkins School carpark
27 September 2025
aptera near underside leaf tip
Peter Smith
Leicester, Abbey Park
07 July 2023
Apterae
Peter Smith
Leicester, Abbey Park
07 July 2023
Colony on underside
Mike Higgott
Loughborough University
13 September 2023
Mike Higgott
Loughborough University
18 July 2023
Leicestershire & Rutland Map
Enter a town or village to see local records
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:
- 5
- First record:
- 07/07/2023 (Smith, Peter)
- Last record:
- 27/09/2025 (Bell, Melinda)
Total records by month
% of records within its species group
10km squares with records
The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.
In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.
Latest images
Latest records
Peter Smith
Leicester, Abbey Park
07 July 2023
Colony on upper side
Melinda Bell
Barrow on Soar, Humphrey Perkins School carpark
27 September 2025
Graham Calow
Sapcote, Bassett Lane Cemetery
11 July 2023
on underside of Tulip-tree leaf
