Electronic field guide to AQUATIC MACROINVERTEBRATES of SMALL STREAMS in Eastern Massachusetts

Sand

Psilotreta_case_thm.jpg
Molanna_case_thm.jpg

NEXT LEVEL		Small stones

Neophylax_case_thm.jpg

NEXT LEVEL
Leaves and grasses

Ptilostomis_case_thm.jpg
LimnephilusA_thm.jpg

NEXT LEVEL		Twigs, bark, and wood

Pycnopsyche_thm.jpg

NEXT LEVEL
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