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Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

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TaxonomyBrowse
Info
ImagesLinksBooksData

Phylum Arthropoda - Arthropods

Platytomus longulus (Cartwright) - Platytomus longulus Riley Wasp, Revisited - Steniolia Dasytinae, right? - male - female Spotted Spreadwing, Male - male Jumping Spider - Habronattus californicus - male Green fly - Chlorotabanus crepuscularis - female Tacparia detersata (Pale Alder Moth) - Tacparia detersata Gracillariid - Parornix
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Explanation of Names
from the Greek arthron (αρθρον)- "joint" + podos (ποδος)- "of foot, leg"; refers to the jointed legs of all members in the phylum
Numbers
Worldwide:(1)(2)
15 classes
>120 orders
~2140 families [doesn't sound right, as Crustacea alone have >1000, Myriapoda close to 200, Arachnida and Hexapoda close to a thousand each, too... =v=]
>1.3 million described species (plus many more undescribed)
Size
ranges from the smallest mite (about 0.10 mm) and the smallest insect (a Hymenopteran, Dicopomorpha echmepterygis at 0.139 mm), up to the Japanese Spider Crab (legspan to 3.8 m), but most arthropods are in the range 2-25 mm
Identification
Three or more pairs of jointed legs (some mites have less, many insect larvae have none)
Body segmented, bilaterally symmetrical
Possessing an exoskeleton, usually tough, composed in part of chitin(2)
See Glossary for terminology.
Range
Cosmopolitan
Habitat
Almost every habitat
Internet References
Introduction to the Arthropoda (Waggoner & Collins)
Tree of Life (Maddison 1995)
Insect Morphology (illustrated glossary)