| Arthropoda: Phylogeny, bibliography, and links from the Tree of Life Project. |
| Brisbane Insects and Spiders: Photos and notes on insects and spiders in Brisbane, Australia. |
| Bug Pictures: Gallery of photos of insects and spiders, mainly from France. |
| BugGuide.Net: An online resource devoted to insects, spiders and their kin, with identification help, images, and information. |
| Bugs in Cyberspace: Images and information on many species of arthropods. Sections on phasmids, mantids, beetles, scorpions, and US invertebrates. |
| Canadian National Collection of Insects, Arachnids, and Nematodes: Information on the 16 million specimens contained in the collection, plus curatorial units and staff. Links to on-site entomology and arachnology documentation, and other relevant web sites. |
| Cirrus Digital Imaging: Gallery of close-up photos of common North American arthropods. |
| Common Insects of Texas: Gallery of 381 images of insects and other arthropods. |
| Herper.com: Invertebrates: Articles and links related to insects, arachnids, and other invertebrates. |
| Identification of Insects: An overview of morphological features of the different Classes of arthropods and Orders of insects, with photos of Italian arthropods by Alessandro Strano. |
| Insects and More: Image galleries of butterflies, odonates, other insects, and other arthropods from Texas. |
| Insects of Ojibway Prairie, Windsor, Ontario: Photo galleries and information on spiders, chiggers, mayflies, fireflies, dragonflies, butterflies, moths, leafhoppers and other invertebrates of urban areas, wetlands, prairies, and woodlands. |
| Introduction to the Arthropoda: The Arthropods, the largest animal phylum, includes insects, spiders, crustaceans, and others. Comprehensive information from UC-Berkeley website. |
| Introduction to the Cheliceramorpha: 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." |
| Iowa State University Entomology Image Gallery: A large collection of photographs and movies of insects and other arthropods and they damage they cause. Includes links to accompanying articles. |
| Natural Perspective: Phylum Arthropoda (Joint-Legs) |
| Phylum Arthropoda: Philip Myers's introduction to Phylum Arthropoda, from the Animal Diversity Web. |
| Reference Library of Digitized Insect Sounds: Audio samples organized by both species and subject. |
| TIARA: Collaborative biological information system for the insects and terrestrial arthropods of the south-central United States and adjacent Mexico. Classification, range maps, taxon lists, images, Texas A and M University holdings, and links. |
| What's That Bug?: Information, user-contributed images, and identification help for insects and relatives of North America. |
Classical
