Geocrypta galii

Description

The larvae of Geocrypta galii produce smooth, spherical galls of a pinkish, greenish or even fully reddish appearance within the nodes of Lady’s Bedstraw and Hedge Bedstraw and may occur in large numbers where present.  The galls can fuse together and encircle the stem. A single larva is found in each growth and is orange in colour. The galls turn brown with age and have an outer covering of short, shiny hairs.

Identification difficulty

Gall Adult

Recording advice

Gall: Please provide a photograph of the gall and also state the host species in the ‘comments’ section when adding your record.

Habitat

Galls may be found where the host species Lady’s Bedstraw or Hedge Bedstraw are present.

When to see it

Summer and early autumn.

Life History

The larvae escape through a side opening in the gall and pupate in the soil.

UK Status

Local throughout Britain.

VC55 Status

Status in Leicestershire and Rutland not known.

Leicestershire & Rutland Map

MAP KEY:

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

UK Map

Species profile

Species group:
Flies
Kingdom:
Animalia
Order:
Diptera
Family:
Cecidomyiidae
Records on NatureSpot:
2
First record:
09/08/2020 (lemmon, roy)
Last record:
25/09/2023 (Timms, Sue)

Total records by month

% of records within its species group

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