Uroleucon obscurum

Alternative names
Large Hawkweed Aphid
Description

Adult apterae of Uroleucon obscurum are reddish brown to bronze with black antennae and siphunculi and a yellow cauda. The body length of an adult Uroleucon obscurum aptera is rather less than for most species at 1.8 to 3.7 mm.

Identification difficulty
Recording advice

Please provide close up images to support your record and state the host plant species.

Habitat

Where Hieracium species occur.

When to see it

Sexual forms appear in September, and the species overwinters in the egg stage

Life History

Uroleucon obscurum has been recorded on 26 Hieracium species. The species does not host alternate. It can be found on the upper parts of stems of Hawkweeds (Hieracium spp.).

UK Status

True status of this species 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:
28/08/2022 (Bell, Melinda)
Last record:
18/07/2025 (Pugh, Dylan)

Total records by month

% of records within its species group

10km squares with records

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