Phycitodes binaevella

Alternative names
Spotted Knot-horn
Ermine Knot-horn
Description

Wingspan 22-27 mm. The easiest of the three British species of Phycitodes to identify; it is the largest and has large blackish dots on a paler ground colour. The resting posture where the wings are rolled tightly around the body is common to the group.

Identification difficulty
Habitat

Favouring areas where the larval food plant is present.

When to see it

The single generation flies in July and August.

Life History

The larvae feed inside the flower heads of Spear Thistle

UK Status

It occurs fairly frequently throughout England and Ireland. In the Butterfly Conservation’s Microlepidoptera Report 2011 this species was classified as common.

VC55 Status

Fairly frequent but not common in Leicestershire & Rutland. L&R Moth Group status = B (scarce resident or restricted distribution or regular migrant)

Reference
62.058 BF1483

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

Common names
Ermine Knot-horn, Spotted Knot-horn
Species group:
insect - moth
Kingdom:
Animalia
Order:
Lepidoptera
Family:
Pyralidae
Records on NatureSpot:
138
First record:
14/07/2003 (Skevington, Mark)
Last record:
21/07/2025 (Pugh, Dylan)

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