Freshwater Macroinvertebrates from Streams in Western Washington and Western Oregon
A laminate field guide by Michael R. Clapp © 2010

Ordering Information

I am sorry, but I am not able to process orders at this time. I am temporarily out of stock, but I hope to resume sales in November 2016. Please check back at that time if you are still interested in the guide. I apologize for any inconvenience this may cause you.

Copies are available for purchase: $4.50 each copy, plus shipping, and tax for WA residents (cost table listed below). Process for ordering guides:

  1. Email with the number of copies you would like to order and the shipping information (used to calculate postage and tax for WA destinations). [Please, let me know if there are any purchasing limitations, tax exemptions, or vendor information requirements if you are ordering for an organization.]
  2. I will respond via email with a price quote, payment options, and a request to confirm the order.
  3. Email to confirm the order and provide any additional information that might be needed to process the order.
  4. I will ship the guides with a receipt or invoice based on the purchasing requirements.

For more information, contact: or phone: 360-577-0494

Description and Features of the Guide

This double-sided, 9" X 11 1/2", full-color, laminated field guide includes more than 70 pictures of freshwater macroinvertebrates and describes over 45 taxa of insect and non-insect aquatic organisms. The guide is printed on 80 lb. white cover stock and sealed in 7 mil laminate for durability and protection in the field.

Features of the guide:

  • Contains many common aquatic organisms found in streams – mostly insect larvae, but also includes some aquatic adults and some non-insect macroinvertebrates
  • the front of the guide focuses on common stonefly, mayfly, and caddisfly families
  • the back of the guide contains other common insect and non-insect taxa
  • insects are identified to the family level, with multiple examples shown for many of these families
  • the macroinvertebrates are arranged by taxa (insect orders; non-insect phyla/classes)
  • common name and classification are given for each organism
  • 6 major classification groupings are color-coded (insects, arachnids, crustaceans, annelids, platyhelminthes, mollusks); color key on bottom of page two
  • size and other physical characteristics are listed for identification purposes
  • a metric scale is included on the bottom of page one to assist in determining size

Macro groups represented:

  • caddisflies - northern case-maker, saddle-case-maker, humpless case-maker, lepidostomatid case-maker, net-spinner, free-living, finger-net
  • mayflies - ameletid, prong-gill, small minnow, spiny crawler, flat-headed
  • stoneflies - golden, little yellow, little brown, little green, slender winter, giant, roach-like
  • aldersflies & dobsonflies
  • damselfly & dragonflies
  • aquatic beetles - riffle beetles, predaceous diving beetles, water penny, whirligig
  • true bugs - water boatman, water strider
  • flies - mosquito, midges, black fly, crane fly
  • arachnids - water mites
  • crustaceans - scud, sow bug*, crayflish
    *correction to guide: I've been informed that the sow bug image used in the guide is of a semi-aquatic or terrestrial species, not a true aquatic sowbug (even though it was found in a sample collected from a stream).
  • worms - aquatic earthworm, leeches, flatworm
  • mollusks - snails, limpet, clam, mussel

Copies are available for purchase -- $4.50 each, plus shipping and tax (WA residents)
For more information, contact: gmail ; or phone: 360-577-0494


Sample A
(click on image or link to enlarge)

Sample B
(click on image or link to enlarge)

Guide & Shipping Costs

*Orders in Washington State are subject to sales tax. WA tax rates vary based on destination ("ship to" location in WA), and according to state requirements the tax is calculated on both product & shipping. To determine the tax amount for your order, use the "guides+shipping" amount from the table below and follow the link to: WA Dept. of Revenue Tax Rate Lookup Tool. Orders outside the U.S. or more than 20 guides -- see statement below chart.

# of guides
guide cost
shipping cost
Shipping method^

*WA sales


1st class
1st class
1st class
1st class
1st class
1st class
1st class
1st class
priority flat rate
priority flat rate
priority flat rate
priority flat rate
priority flat rate
priority flat rate
priority flat rate
priority flat rate
priority flat rate
priority flat rate
priority flat rate
priority flat rate

^ Shipping price is based on U.S. delivery. For orders of more that 20 guides, shipping varies depending on weight (# of guides) and destination. Please email with quantity & delivery information for a quote on shipping of more than 20 guides or destinations outside the U.S.


October 2015