Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes


TaxonomyBrowse
Info
ImagesLinksBooksData

Subphylum Myriapoda - Myriapods

Chad bug - Scutigera coleoptrata Geophilomorpha - Geophilus vittatus Worm Millipede - Narceus americanus-annularis-complex Centipedes mating? - Oxidus gracilis Stone Centipede? - Lithobius forficatus Millipedes - Polyxenus Millipede - Oxidus gracilis Millipede
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Myriapoda (Myriapods)
Explanation of Names
Greek myrias (μυριας) '10,000' (i.e., countless) + podos 'foot, leg'
Numbers
four classes, all represented in our area(1)
Identification
Numerous body segments, not differentiated into thorax and abdomen.
In millipedes (class Diplopoda), the trunk segments are fused into pairs called diplosegments, each with two pairs of legs.

Centipedes (class Chilopoda) have numerous unfused trunk segments, all but the last two of which have one pair of legs. The first pair of legs is modified into large poison fangs.

Pauropodans (class Pauropoda) are eyeless and 0.5-1.5 mm long, with branched antennae, 9-11 leg-bearing trunk segments, and a free telson.

Symphylans (class Symphyla) are eyeless and 0.5-8.0 mm long, with long, simple antennae and 14 trunk segments, of which the first 12 each have a pair of legs. The penultimate segment has cerci and a pair of long sensory hairs. The last segment is fused to the telson.
Range
worldwide
Internet References