1![FAMILY HETEROCERIDAE (Variegated mud-loving beetles) L. LeSage Heterocerids are represented in Canada and Alaska by 26 species. The adults are nocturnal and come to light in numbers. During the day they hide and make tun FAMILY HETEROCERIDAE (Variegated mud-loving beetles) L. LeSage Heterocerids are represented in Canada and Alaska by 26 species. The adults are nocturnal and come to light in numbers. During the day they hide and make tun](https://www.pdfsearch.io/img/4fb2fe3d16cce621831f33c3c5e5bb70.jpg) | Add to Reading ListSource URL: www.canacoll.orgLanguage: English - Date: 2013-06-03 23:36:17
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2![FAMILY ELMIDAE (Riffle beetles) L. LeSage This family comprises about 1100 species worldwide; 32 of them occur in Canada. Elmids are small beetles, usually less than 3 mm long and most are aquatic in both adult and larva FAMILY ELMIDAE (Riffle beetles) L. LeSage This family comprises about 1100 species worldwide; 32 of them occur in Canada. Elmids are small beetles, usually less than 3 mm long and most are aquatic in both adult and larva](https://www.pdfsearch.io/img/88f825dbe7a00957f71c12d91da22345.jpg) | Add to Reading ListSource URL: www.canacoll.orgLanguage: English - Date: 2013-06-03 23:36:06
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3![POLLUTION TOLERANCE INDEX (PTI) (Adapted from Volunteer Stream Monitoring: A Methods Manual, United States Environmental Protection Agency, Office of Water, Draft Document #EPA 841-B[removed], November 1997 AND Mitchell an POLLUTION TOLERANCE INDEX (PTI) (Adapted from Volunteer Stream Monitoring: A Methods Manual, United States Environmental Protection Agency, Office of Water, Draft Document #EPA 841-B[removed], November 1997 AND Mitchell an](https://www.pdfsearch.io/img/107f2bb2029e540bc052da2a6dcc7fb7.jpg) | Add to Reading ListSource URL: www.maidencreekwatershed.orgLanguage: English - Date: 2011-06-12 09:28:26
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4![PROTOCOL 4. COLLECTING AND O BSERVIN G A QUATIC I NVER TEBRATES PROTOCOL 4. COLLECTING AND O BSERVIN G A QUATIC I NVER TEBRATES](https://www.pdfsearch.io/img/7930de88696aed9a7400816d2ab8028a.jpg) | Add to Reading ListSource URL: ei.cornell.eduLanguage: English - Date: 2013-06-12 11:32:34
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5![Worldwide Bibliography of Aquatic and Semiaquatic Byrrhoidea (Insecta: Coleoptera) Worldwide Bibliography of Aquatic and Semiaquatic Byrrhoidea (Insecta: Coleoptera)](https://www.pdfsearch.io/img/d46c3cb033b812c6d36541d6f6a049de.jpg) | Add to Reading ListSource URL: essig.berkeley.eduLanguage: English - Date: 2009-01-23 16:26:21
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6![](https://www.pdfsearch.io/img/162f0b8f016918e5a5c62bd299d8b772.jpg) | Add to Reading ListSource URL: www.gpo.govLanguage: English - Date: 2010-12-01 23:44:33
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7![](https://www.pdfsearch.io/img/e256af8456e372ad64cb00ab87cfb8ad.jpg) | Add to Reading ListSource URL: www.biodiversitylibrary.orgLanguage: English - Date: 2011-01-30 11:17:19
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