Spider
Videos
Spiders are air-breathing arthropods that have eight limbs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank sev
Palystes castaneus female, dorsal aspect pedipalp trichobothria carapace of prosoma (cephalothorax) opisthosoma (abdomen) eyes AL (anterior lateral) AM (anterior median) PL (posterior lateral) PM (posterior median) Leg segments: coxa trochanter femur patella tibia metatarsus tarsus claw chelicera
Palystes castaneus female, ventral aspect. Nos 1 to 14 as for dorsal aspect. sternum of prosoma pedicel (also called pedicle) book lung sac book lung stigma epigastric fold epigyne anterior spinneret posterior spinneret Legs are labelled I, II, III, IV from anterior to posterior.
A syrphid fly captured in the web of a spider
Chelicerata
Videos
The subphylum Chelicerata constitutes one of the two major living subdivisions of the phylum Arthropoda, alongside Mandibulata. Chelicerates include the sea spiders, horseshoe crabs, and arachnids, as
Female scorpion Vaejovis cashi carrying its young (white)
A microscopic mite Lorryia formosa
Ammothea hilgendorfi 3281
Promegistus armstrongi 335075066