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EFC Centre at Wat Tyler Country ParkOur centre is available for visits on a pre-booked basis on Wednesdays between 10am - 4pm. The Club’s activities and displays are also usually open to the public on the first Saturday of the month 11am - 4pm.

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Antherophagus pallens top Copyright: Robert Smith
Antherophagus pallens (formerly nigricornis)
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Recent photos

Green longhorn moth
William Derham from Wilson 1881
Upminster Village Wilson 1881
Upminster Parish Map Wilson 1881
Upminster Hall from the South Wilson 1881
Upminster Church after Restoration Wilson 1881
Upminster Pot Kiln from the North East Wilson 1881
Upminster Gaines Water Wilson 1881
Paromalus flavicornis underside
Paromalus flavicornis punctuation

Species Account for Theria primaria

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Theria primaria  (Haworth, 1809) 70.282 Evidence needed
Early Moth
Lepidoptera: macromoths: Geometridae

Early Moth Copyright: Ben Sale

 
Maps produced by MapMate®. Data overlays Copyright © Essex Field Club 2026.
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Taxonomic group: larger moths (Lepidoptera: macromoths) - County data

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View time series maps for Theria primaria

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Verification Grade: Adult:
Adult: Good quality photographs or possibly a specimen will be required


Records: 587
First Record: 1940
Latest Record: 2026

1992-on hectads: 42
Pre-1992 hectads: 29
Total hectads: 49

Additional Phenology Data

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Early Moth
Early Moth

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Theria primaria on UK Moths website
 
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Habitats

Broad Habitat Data (based on 92 records with habitat information)

Broad subhabitat Data (based on 5 records with subhabitat information)

no structural habitat data available

Habitat Detail and Method (based on 587 records with habitat detail and method information)

Recorded management for locations with Theria primaria

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Interpretation of distribution maps