Adult caddis AIDGAP
A photo-based guide using the visual appearance of the whole insect for identification. For naturalists and enthusiasts, including moth trappers.
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Freshwater leeches
A handy photo based guide to freshwater leeches in Britain and Ireland, enabling identification of live animals in the field.
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Grasses AIDGAP
Grasses AIDGAP is a vegetative key to 90 of the most common species in Britain and Ireland.
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Land snails AIDGAP
Land snails AIDGAP is an identification guide to all 100 free-living terrestrial snails in Britain. Four keys provide a variety of routes to identification.
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WCA Survey pack
How valuable is your woodland for wildlife? The WCA Survey pack contains everything you need to complete the Woodland Condition Assessment.
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Sphagnum mosses AIDGAP
Sphagnum mosses AIDGAP is an accessible field key to all 36 species in the UK and Ireland. It is particularly useful for identifying poorly developed specimens, growing in unfavourable conditions or early in the year.
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Springtails AIDGAP
Springtails AIDGAP is an identification guide to all species of adult springtails (Collembola) in Britain and Ireland.
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Earthworms AIDGAP
Earthworms AIDGAP covers all earthworm species found living freely in the UK and Ireland. This 2nd edition also includes a key to glasshouse earthworms.
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Plant galls AIDGAP
Plant galls AIDGAP (3rd edition) contains around 300 keys to galls on plants in Britain.
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Ferns AIDGAP
Ferns AIDGAP covers the 59 species of fern, 6 clubmosses, 3 quillworts and 8 horsetails found in Britain and Ireland. Third edition.
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Water plants AIDGAP
Water plants AIDGAP is an identification guide to all larger plants found in fresh water, including emergent plants. Now updated to Stace (4th edition).
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Terrestrial invertebrates AIDGAP
Terrestrial invertebrates AIDGAP is an identification guide to the larger (>2mm length) invertebrates found on land in Britain and Ireland.
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Freshwater invertebrates AIDGAP
Freshwater invertebrates AIDGAP is an identification guide to the invertebrates found in ponds, lakes, streams and rivers in Britain and Ireland.
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Centipedes AIDGAP
Centipedes AIDGAP covers all 57 species of centipede in Britain. It includes 7 species that only occur in greenhouses.
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Freshwater snails AIDGAP
Freshwater snails AIDGAP is an identification guide to over 50 species in Britain and Ireland, covering all gastropod molluscs found in still and flowing fresh water.
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Spiders AIDGAP
Spiders AIDGAP is an identification guide to the 34 families of spiders in Britain. Two spider identification keys are presented, enabling alternative routes to identification.