Acericerus ribauti

Alternative names
Idiocerus ribauti
Description

Length 5-6mm, and associated with Acer spp. esepcially Sycamore and Field Maple. Forewings marbled greyish/reddish brown, with a hyaline apical part and a light spot on the clavus.  Extremely similar to the closely-related Acericerus vittifrons - females of these species cannot be separated, males can be distinguished by the short dark bar on the face with a pale midline, which does not reach the ocelli (the minute simple eyes between the large compound eyes).

Similar Species

Acericerus vittifrons and A heydenii are very similar and also found on Acer spp.

Identification difficulty
Recording advice

Good photographs clearly showing an overall view and the vertex (face) of the male required. 

Habitat

Acer, especially Sycamore and Field Maple

When to see it

Autumn-Winter.

UK Status

First recorded in Britain in 2007, now spreading from the south-east.

VC55 Status

Uncommon

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:
Bugs
Kingdom:
Order:
Family:
Records on NatureSpot:
11
First record:
20/09/2023 (Calow, Graham)
Last record:
13/10/2025 (Timms, Sue)

Total records by month

% of records within its species group

10km squares with records

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