Descriptions, illustrations, interactive identification, and information retrieval from DELTA databases


23 June 2014

M. J. Dallwitz


Butterflies and moths (demonstration interactive key)

This key is designed for preliminary exploration of interactive identification, and for use in training courses and workshops. It’s important to practise ‘real’ identification, rather than pretending to identify familiar organisms (when the answer is known beforehand).

The characters don’t require special knowledge, and the illustrations can be used as ‘specimens’ to be identified. Instructions on using the key are included.

Amphipoda of Australia – families

Amphipoda of the north-east Atlantic and Mediterranean. Originally at Zipfiles containing the keys are available at the Internet Archive (2007).

Anastrepha and Toxotrypana

Angiosperms (flowering plants) – families

Anomura – families

Australian freshwater algae – genera

Beetle adults: Elateriformia (Coleoptera) – families

Beetle larvae: Elateriformia (Coleoptera) – families


British ferns (Interactive keys using Intkey and NaviKey.)

British horsetails

British insects

British Lycopodiales

British mosses – families

British mushrooms and toadstools – families

British non-marine molluscs (slugs, snails and mussels) – families

British spiders – families

CITES protected timbers and similar timbers (in English, French, German, and Spanish)

Commercial timbers (in English, German, French, Portuguese, and Spanish)

Common trees of the North Carolina Piedmont

Crustaceans of the world

Cucumis and Cucumella (Cucurbitaceae)

Echinosteliales (Myxomycetes)


Festuca of China

Festuca of North America

Festuca of South America

Flora of China

Flora of the Canadian Arctic Archipelago. (Including the following groups previously published separately: Cyperaceae, Fabaceae, Juncaceae, Liliaceae, Poaceae (grasses), Pteridophytes, Ranunculaceae, Salicaceae, Saxifragaceae.)

Flora of Western Australia

Fossil spores and pollen of New Zealand fruitfly

Fruit fly pests of the world • adults • larvae (Interactive keys using Intkey, Lucid2, and Lucid3.)

Fruits and seeds – families

Grass genera of Friuli – Venezia Giulia (in Italian)

Grass genera of the world

Grass species of the world

Gymnosperms – families

Hermit crabs Calcinus of the world (Anomura, Diogenidae)

Hymenoptera (Ceraphronoidea, Cynipoidea, Evanioidea, Platygastroidea, Proctotrupoidea, Symphyta, Chrysidoidea)

Isopoda of Australia – families

Leccinum and Phylloporus in Costa Rica (in English and Spanish)

Legume (Fabaceae) fruits and seeds – genera

Leguminosae-Caesalpinioideae and Swartzieae – genera • English • French

Lichenized and non-lichenized Ascomycetes – genera; also species of Arthoniaceae, Biatoraceae, Cladoniaceae, Dacampiaceae, Epigloeaceae, Erysiphaceae, Lecanoraceae, Lecideaceae, Megalosporaceae, Physciaceae, Rimulariaceae, Sphaerophoraceae, Thelotremataceae. Uses NaviKey.

Mexican tropical seaweeds – genera (in Spanish)

Mictacea – species

Mysidacea – families, subfamilies and tribes

Nematodes of Australia

Polychaete families and higher taxa

Remipedia – species

Restionaceae of Africa

Salix (Salicaceae) of the New World

Soil classification, Australian

Solanum species of eastern and northern Australia

Spelaeogriphacea – species

Stomatopoda – families

Tanaidacea – families

Tree and shrub genera of Borneo

Tropical reef lobsters of the genus Enoplometopus

Miscellaneous Web-browser interactive keys using PollyClave and DAP

Downloading files from this site for use offline

DELTA Home DELTA Home Page