This category is for sites devoted to the largest of all animal phyla, Phylum Arthropoda. This phylum includes the insects, spiders, mites and ticks, crustaceans, centipedes, millipedes, isopods, and trilobites. The arthropods typically share a common body plan. They have an outer tough cuticle and they are divided into segments, each of which may carry jointed appendages. Often there is a head, thorax or trunk and an abdomen. They are an amazingly successful group of creatures and have been around since the Precambrian, 600 million years ago.
Phylogeny, bibliography, and links from the Tree of Life Project.
Photo gallery of European insects and arachnids.
Photos and notes on insects and spiders in Brisbane, Australia.
Gallery of photos of insects and spiders, mainly from France.
An online resource devoted to insects, spiders and their kin, with identification help, images, and information.
Images and information on many species of arthropods. Sections on phasmids, mantids, beetles, scorpions, and US invertebrates.
Gallery of close-up photos of common North American arthropods.
Image galleries of all major insect groups and other arthropods in Australia. Features the work of Australian macro insect photographer Denis Crawford.
Articles and links related to insects, arachnids, and other invertebrates.
An overview of morphological features of the different Classes of arthropods and Orders of insects, with photos of Italian arthropods by Alessandro Strano.
Photo galleries and information on spiders, chiggers, mayflies, fireflies, dragonflies, butterflies, moths, leafhoppers and other invertebrates of urban areas, wetlands, prairies, and woodlands.
The Arthropods, the largest animal phylum, includes insects, spiders, crustaceans, and others. Information from UC-Berkeley website.
About the arthropod order that includes spiders and scorpions, mites and ticks, horseshoe crabs, and daddy-longlegs. Cheliceramorpha includes spiders and scorpions, mites and ticks, horseshoe crabs, daddy-longlegs, and extinct "sea-scorpions."
A large collection of photographs and movies of insects and other arthropods and they damage they cause. Includes links to accompanying articles.
Philip Myers's introduction to Phylum Arthropoda, from the Animal Diversity Web.
Audio samples organized by both species and subject.
Information, user-contributed images, and identification help for insects and relatives of North America.
Thanks to DMOZ, which built a great web directory for nearly two decades and freely shared it with the web. About us