“Certain measurements are crucial to our ordinary understanding of the universe. What, for example, is the mean diameter of the Earth? It is 12,742 kilometers. How many stars are there in the Milky Way? Approximately 10¹¹. How many genes are there in a small virus particle? There are 10 (in oX174 phage). What is the mass of an electron? It is 9.1 x 10-28 grams. And how many species of organisms are there on Earth? We do not know, not even to the nearest order of magnitude.” ~E.O. Wilson

(Excerpted from Q.D. Wheeler, Invertebrate systematics or spineless taxonomy? Zootaxa (2007) 1668:11-18)

Recommended Links

Chironomid Home Page
Nice site for chironomid info

Crayfish Site
Crayfish distribution & general info site

Ephemeroptera Galactica
Interesting mayfly site

Gastropoda Site
Rob Dillon's great snail site

International Odonata Network
Dragonfly distributions, lists, and good info

John Epler's Website
A good site for information about midges, beetles, true bugs, and much more

Mark J. Wetzel
Annelida and so much more at this site

Mayfly Central
The Mayfly site

North American Benthological Society
The site keeping us viewers of freshwater spineless wonders connected

North American Stonefly List
Stonefly distributional data site

Stoneflies of the USA
State/county stonefly distributions

Worldwide Coleoptera
Stuff on beetles

Worldwide Trichoptera Checklist
Trichopteran taxa and distributional data