Hemerocallis Gall Midge - Contarinia quinquenotata


The larvae of the Hemerocallis Gall Midge (Contarinia quinquenotata) are serious pests of Daylilies (Hemerocallis sp.). It infests the flower buds causing the flowers to remain closed and rot.  There are many white larva inside between the thickened and distorted petals. 



Identification difficulty

Gall Adult

Recording advice

Provide a photo


In gardens and parks, where the host species of Daylily occur.

When to see it

When Daylilies are in bloom.

UK Status

Widespread in Britain, though less frequent in Scotland.

The Royal Horticultural Society is tracking its spread through the UK, and have asked for records to be submitted via their hemerocallis gall midge survey 

VC55 Status

Appears to be frequent in Leicestershire and Rutland (which are mainly from records on the NBN from the RHS survey)

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map

Species profile

Common names
Hemerocallis Gall Midge
Species group:
Craneflies, Gnats & Midges
Records on NatureSpot:
First record:
11/06/2018 (Timms, Sue)
Last record:
11/06/2018 (Timms, Sue)

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