We have a network of volunteer recorders, who are experts on specific groups of species and collate and co-ordinate records and are willing to assist with identification of the more unusual species. Their contact details are below:
Chair of the Recorders' Committee

Amphibians and Reptiles

Amphibian and Reptile records are of particular interest at present as we are currently conducting a countywide survey of Mammals, Reptiles and Amphibians with the aim of updating the distribution atlas published in 2001. For further information please contact the atlas team.
Ants

Aquatic Beetles and Aquatic Bugs

Aquatic Crustacea and Fish
Bees and Wasps
Beetles
Birds
The Herts Bird Club Records team includes, Chris Ruis (Bird Recorder), Mike Ilett (Herts Rare Birds Panel), Tom Speller (Data Manager) and a team of volunteer helpers
Bugs: Terrestrial Heteroptera
Butterflies
Records via www.hertsmiddx-butterflies.org.uk/recording-new.php or iRecord.
Dragonflies and Damselflies

62c High Street, Cheshunt, Waltham Cross, Herts EN8 0AH
Fungi
A team of volunteers and experts from the Herts and Beds Fungi Group maintain the data and records for Hertfordshire fungi and respond to mycological enquiries.
Geology
Grasshoppers, Crickets, Cockroaches and Earwigs

Lacewings and allies
Leeches and Flatworms
Lichens

Mammals (including Bats)
23 North Road, Hertford, Herts SG14 1LN
Mammal records are of particular interest at present as from 2015 to the end of 2024 we are running a countywide survey of Mammals, Reptiles and Amphibians with the aim of updating the distribution atlas published in 2001. For further information please contact the atlas team.
Mayflies
c/o Environment Agency, Apollo Court, 2 Bishops Square, St Albans Road West, Hatfield, Herts AL10 9EX
Moths

Records via: hertsmiddxmoths.uk/index.php
Spiders

Stoneflies and Caddisflies

True Flies (Diptera)
Vascular plants
Records via iRecord
Vascular Plants
Records via iRecord
Vascular plants
Records via iRecord
Other groups
c/o HMWT, Grebe House, St Michael's Street, St Albans, Herts AL3 4SN
Please send records of any groups or species not listed above to the Hertfordshire Environmental Records Centre.