Arthropod mouthparts
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The mouthparts of arthropods have evolved into a number of forms, each adapted to a different style or mode of feeding. Most mouthparts are modified pairs of appendages, which in ancestral forms would
Chewing mouthparts of a grasshopper. Legend: lr, labrum; md, mandibles; mx, maxillae; hp hypopharynx; lb, labium.
Ventral view of forcipules of a centipede, arising from the first body segment
Opiliones
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The Opiliones are an order of arachnids, colloquially known as harvestmen, harvesters, daddy long legs, or granddaddy long legs. Over 6,650 species of harvestmen have been discovered worldwide, althou
Chilean harvestman (Pachyloidellus goliath)
North European harvestman (Leiobunum rotundum) body
A harvestman (a male Phalangium opilio), showing the almost fused arrangement of abdomen and cephalothorax that distinguishes these arachnids from spiders